Diethyl Carbonate

Product Profile

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Names
Preferred IUPAC nameDiethyl carbonate
Other namesEthylenecarbonate diethyl ester
Carbonic acid diethyl ester
Carbonic diethyl ester
Diethyloxycarbonyl
DEC
Pronunciation/daɪˈeθ.ɪl ˈkɑː.bə.neɪt/
Identifiers
CAS Number105-58-8
Beilstein ReferenceBeilstein Reference: 02-07-00-02542
ChEBICHEBI:17803
ChEMBLCHEMBL135126
ChemSpider12006
DrugBankDB14187
ECHA InfoCardEC 203-714-2
EC Number203-716-3
Gmelin Reference63551
KEGGC18995
MeSHDiethyl Carbonate
PubChem CID8005
RTECS numberFG2450000
UNIINTH09UMPBO
UN numberUN1161
Properties
Chemical formulaC5H10O3
Molar mass118.13 g/mol
AppearanceColorless transparent liquid
OdorFruity odor
Density0.973 g/cm³
Solubility in waterSoluble
log P0.88
Vapor pressure4.8 mmHg (20 °C)
Acidity (pKa)pKa ≈ 13.02
Basicity (pKb)14.84
Magnetic susceptibility (χ)-55.4×10⁻⁶ cm³/mol
Refractive index (nD)1.415
Viscosity1.7 mPa·s (at 25 °C)
Dipole moment1.21 D
Thermochemistry
Std molar entropy (S⦵298)180.7 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298)-589.8 kJ/mol
Std enthalpy of combustion (ΔcH⦵298)-3222.7 kJ/mol
Pharmacology
ATC codeV03AB37
Hazards
GHS labellingGHS02, GHS07
PictogramsGHS02,GHS07
Signal wordWarning
Hazard statementsH226, H319
Precautionary statementsP210, P233, P240, P241, P242, P243, P261, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P312, P337+P313, P370+P378, P403+P235, P403+P233, P501
NFPA 704 (fire diamond)1-2-0-闪
Flash point24 °C (75 °F)
Autoignition temperature180 °C
Explosive limits3.1–16%
Lethal dose or concentrationLD50 oral rat 2450 mg/kg
LD50 (median dose)LD50 (median dose): Oral rat LD50 = 2450 mg/kg
NIOSHWW4250000
PEL (Permissible)PEL: 100 ppm (620 mg/m³)
REL (Recommended)300 ppm
IDLH (Immediate danger)No IDLH established.
Related compounds
Related compoundsDimethyl carbonate
Diphenyl carbonate
Ethylene carbonate
Propylene carbonate

Chemical ID: CAS Formula HS Code Database

Product Identification: Diethyl Carbonate

Property Details Industrial Commentary
Product Name Diethyl Carbonate Known throughout the chemical industry for its purity-critical uses. The name references its two ethyl groups bound to a carbonate moiety. Every batch is assessed for conformance to labeling and end-use sector, especially when feedstock traceability is required.
IUPAC Name Diethyl carbonate IUPAC nomenclature helps ensure global product recognition, minimizing ambiguity during regulatory review, transportation, and export documentation. Actual on-pack labeling follows IUPAC for consistency with global chemical inventories.
Chemical Formula C5H10O3 The chemical formula reflects a linear carbonate ester. Plant-level production places control emphasis on complete esterification, minimizing residual ethanol or dimethyl carbonate, which directly impacts formulation and application in electrolytes or solvents.
Synonyms & Trade Names Ethyl carbonate, DEC, Carbonic acid diethyl ester Variations in trade nomenclature persist, especially across regulatory filings and safety data resources. Documentation on shipping and regulatory submissions must reconcile local naming conventions with internationally harmonized trade terminologies.
HS Code & Customs Classification 2920.90 HS classification determines the tariff and import/export compliance burden. Changes in international classification guidelines can affect workflow at the customs clearance stage. Internal compliance teams customarily track updates in the HS code regimen for carbonate esters to preempt supply chain interruptions.

Technical Properties, Manufacturing Process & Safety Guidelines: Diethyl Carbonate

Physical & Chemical Properties

Physical State & Appearance

Diethyl carbonate presents as a clear, colorless liquid in industrial and laboratory settings. A mild, estery odor characterizes material stored under clean conditions. Color formation can occur due to prolonged storage, impurity buildup, or improper container material. The observed melting and boiling points can shift depending on the presence of byproducts and water content. In end-use environments, variations in freezing or boiling behavior signal contamination or specification drift.

Chemical Stability & Reactivity

This chemical maintains stability under dry, inert conditions. Instability may arise in the presence of acids, bases, or strong oxidizers; hydrolysis produces ethanol and carbon dioxide. Reactivity rates vary by grade and contaminant profile, especially with trace metal catalysts or alkaline residues from manufacturing equipment. Impurity introduction increases during extended storage with air or moisture ingress, which can accelerate decomposition or polymerization.

Solubility & Solution Preparation

Diethyl carbonate exhibits low water solubility but blends readily with most aliphatic and aromatic solvents. Mixing requirements and final solution clarity depend on intended formulation use and residual moisture or acid content. Careful phase separation is necessary when used as a solubilizer or solvent intermediate, given potential for haze or emulsion creation in poor-quality material batches. Formulation compatibility, especially for lithium battery or pharmaceutical synthesis, rests on tight control of trace water and acidic impurity levels.

Technical Specifications & Quality Parameters

Specification Table by Grade

Commercial and high-purity grades display grade-dependent parameters for key metrics such as purity, acidity, color, and residue on evaporation. Battery- and pharma-priority specifications usually set tighter impurity limits and threshold tests for trace organic and inorganic contaminants. Detailed specification tables reflect customer and regulatory requirements, with values established through historical process capability and regulatory precedent.

Impurity Profile & Limits

Major impurities include ethanol, ethylene carbonate, moisture, and various residual reagents or side products depending on synthesis route. The profile varies with raw material choice and process design. Impurity control centers around exclusion of water, acid, and metal ion traces, as these negatively impact key downstream applications (e.g., electrolyte manufacturing). Target impurity levels are set according to batch-use context and customer-provided specifications.

Test Methods & Standards

Gas chromatography and Karl Fischer titration remain standard for determining purity and water content, respectively. Colorimetric and acid number methods support routine quality assurance. Additional instrumental analysis (e.g., ICP-MS for trace metals) arises by application need or for regulatory compliance. The laboratory QA program defines batch release criteria, and deviation management triggers based on validated test procedures.

Preparation Methods & Manufacturing Process

Raw Materials & Sourcing

Ethyl alcohol, phosgene, urea, or ethyl chloroformate serve as typical feedstocks, with selection driven by economic, regulatory, and sustainability considerations. Vendor qualification is critical, especially where low-halide or low-metal input material is required for high-spec grades. Cross-contamination or off-spec batches most often originate from inconsistent raw material supply or batch-for-batch supplier variability.

Synthesis Route & Reaction Mechanism

Large-scale operations favor the alcoholysis of ethylene carbonate or phosgenation routes, with process selection determined by efficiency, HSE requirements, and required purity. Reaction mechanism features either direct alkylation or transesterification, with catalyst selection tightly correlated to byproduct profile. For sensitive grades, routes minimizing halogenated byproducts take priority, balancing conversion efficiency against post-reaction purification needs.

Process Control & Purification

Reaction temperature, catalyst introduction, and water exclusion represent major control levers. Water and acid scrubbing, multi-stage distillation, and molecular sieve drying form the backbone of downstream purification, with points designed to intercept known impurity break points. Continuous monitoring supports batch consistency, as off-gas and side stream testing detect catalyst carryover, unconverted reactant, or breakdown products.

Quality Control & Batch Release

Each production campaign undergoes strict analytic validation before batch approval. Parameters include purity, moisture, acidity, and key impurity groupings. Final release hinges on historic data, internal specification limits, and customer-agreed metrics. Any deviation from performance or impurity control triggers a batch hold for corrective action or rework. Batch traceability is maintained through electronic records for raw material, process anomaly, and inspection data.

Chemical Reactions & Modification Potential

Typical Reactions

Diethyl carbonate functions as a key alkylating and carbonylating reagent in both organic synthesis and industrial-scale reactions. It undergoes transesterification with alcohols and esters, as well as nucleophilic substitution under elevated temperature or basic conditions.

Reaction Conditions

Catalyst use depends on the targeted transformation, with base or acid catalysis most typical. Reaction temperature, solvent selection, and exclusion of water or acid traces can make or break reaction efficiency, especially in scale-up. Manufacturing experience confirms that batch yield and selectivity for downstream products rely on a well-defined impurity profile, with trace metals or residual solvent acting as risk factors for byproduct formation.

Derivatives & Downstream Products

This compound feeds into the manufacture of specialty carbonates, pharmaceutical intermediates, and advanced battery electrolytes. Suitability for each application traces back to the underlying technical grade and documented impurity spectrum, especially for high-value or regulatory-bound sectors.

Storage & Shelf Life

Storage Conditions

Standard bulk and packaged storage maintain stability in dry, temperature-controlled, light-avoiding conditions. Where required, inert gas blanketing prevents both moisture uptake and oxidative side reactions. Larger containers must monitor for localized hydrolysis at gas-liquid interface. Long-term stability demonstrates sensitivity to trace acid or moisture accumulation, which drives strict inventory rotation and periodic sample inspection protocols.

Container Compatibility

Accepted storage materials include stainless steel and select fluoropolymer linings. In practice, improper drum coatings or gaskets leach into product, degrading appearance and specification compliance. Dedicated handling lines reduce cross-contamination risk with other solvents or oxidizing cargoes.

Shelf Life & Degradation Signs

Shelf life depends on maintenance of closed packaging, environmental controls, and absence of headspace moisture or container corrosion. Degradation signs appear as color change, increased acidity, haze, or off-odor, which indicate decomposition or secondary contamination. For high-purity grades, routine reanalysis remains the norm to underpin continuing compliance.

Safety & Toxicity Profile

GHS Classification

The product falls into regulatory hazard categories subject to current interpretation, with degree of flammability, toxicity, and environmental hazard varying by concentration and use pattern. Worker protection measures derive from global GHS harmonization, MSDS, and local workplace safety statutes.

Hazard & Precautionary Statements

Key risks include flammable liquid and vapor generation, inhalation exposure in poorly ventilated areas, and mild irritation from direct skin or eye contact. Preventive strategies focus on engineering controls and PPE, with facility standards regularly audited and updated to address incident and near-miss records from operating lines. Robust handling procedures for transfer, mixing, and storage minimize worker exposure and process upsets.

Toxicity Data

Relevant animal and human toxicity studies support risk assessment on acute and chronic exposure, though endpoints often depend on grade and application. Industrial exposure scenarios influence recommended safe limits. Operator safety protocols incorporate emergency response and overexposure mitigation based on material behavior under process upset or accidental release conditions.

Exposure Limits & Handling

Existing exposure limit recommendations differ between regulatory regions and change periodically. Handling practices evolve in response to customer and regulatory demands for risk minimization, especially for bulk liquid and continuous production settings. In-plant monitoring routines, spill management materials, and regular safety training form the backbone of prevention-focused risk management in ongoing manufacturer operations.

Supply Capacity & Commercial Terms for Diethyl Carbonate

Production Capacity & Availability

Current industrial plants for diethyl carbonate operate based on ethylene oxide or dimethyl carbonate routes, with availability highly dependent on feedstock contracts and seasonal demand for associated byproducts. Production expansion timelines mainly reflect project lead times at the raw material level and investment in purification trains. Capacity utilization rates can change quickly in the event of any production upset affecting critical raw materials. Markets see tighter availability during planned turnarounds or unexpected shutdowns, especially in regions with limited integration between core intermediates.

Lead Time & MOQ

Standard lead times reflect batch slotting capabilities, existing inventory, and shipping scheduling efficiency. For most technical and industrial grades, minimum order quantities remain closely tied to transport economics, packaging line runs, and the customer's downstream inventory plans. Requests for custom packaging or grades with atypical impurity profiles often entail additional lead times, largely determined by in-process quality control and revalidation steps.

Packaging Options

Bulk tanker trucks, intermediate bulk containers (IBCs), and steel drums are the usual packaging formats. Selection depends on grade purity, moisture sensitivity, and region-specific transport regulations. Grade and application sensitivity set requirements for vapor-tight seals or lined containers, especially for electronic and battery-grade material. Large-volume customers typically request custom sizing or nitrogen-blanketed tanks in regions with humid climates or long supply chains.

Shipping & Payment Terms

Delivery terms are influenced by the customer’s global footprint and local import/export clearance requirements. Packing, loading, and shipping procedures reflect the handling needs of high-purity grades compared with standard technical grades. Most end users negotiate payment based on contract tenure and historical relationship; new accounts often face stricter pre-shipment or L/C requirements until proven transaction reliability.

Pricing Structure & Influencing Factors

Raw Material Cost Composition

Diethyl carbonate costs derive mainly from ethylene or methanol feedstock pricing, catalyst longevity, and purification utilities. Upstream volatility from crude oil, natural gas, and the acetaldehyde market drives most base cost fluctuation. Purity requirements affect secondary input costs, requiring advanced purification or increased analytical controls on low-trace impurities.

Fluctuation Causes

Raw material price surges result from seasonal plant outages, spikes in energy prices, or changes in supply contracts for ethylene oxide or dimethyl carbonate. Cost curves steepen for higher-purity or battery grades, since these demand both high-purity inputs and extensive batch requalification. Environmental compliance costs—especially those relating to VOC abatement and waste stream disposal—now contribute a larger share near ports and in regions with strict emissions control.

Product Price Difference Explanation: Grade, Purity, and Packaging Certification

The core influence on price stems from targeted grade and certification. Technical grade aligns with commodity pricing and relaxed impurity control. Battery, pharmaceutical, or electronic grades command significant premiums due to multi-stage purification, analytical certification, specialized packaging, and compliance documentation. Distinct packaging certifications—such as hazardous chemical labelling and UN classification—further impact price by imposing additional regulatory costs, especially for intercontinental shipments.

Global Market Analysis & Price Trends

Global Supply & Demand Overview

Major production centers cluster in East Asia due to proximity to feedstock plants, strong downstream electronic and battery sectors, and established export infrastructure. Europe’s demand leans toward specialty and pharmaceutical grades, while North America focuses more on technical and solvent applications. Indian capacity has seen steady additions, reflecting domestic demand in plastics and agrochemical sectors, with most grades destined for internal consumption.

Key Economies Analysis

United States producers prioritize local supply for coatings, adhesives, and downstream industrial solvents, with limited exports due to internal logistics and cost structure. EU suppliers place greater focus on regulatory-driven purity specifications and environmental compliance, adding cost layers. In Japan, domestic production fulfills electronics and energy storage requirements, with strict batch traceability. Chinese factories dominate global export, though periodic environmental clampdowns and energy rationing impact output. Indian export volumes are growing, mainly in technical grade for neighboring Asian and African regions.

2026 Price Trend Forecast

Looking toward 2026, upstream energy input volatility and shifts in global environmental policy will drive continued price differentiation by region and grade. As downstream battery and electronic application demand grows, the need for consistent high-purity supply will reinforce premiums for certified grades. Asian supply is projected to hold cost leadership unless escalated compliance costs from environmental regulation materially alter plant economics. Price fluctuations are likely to be sharpest around feedstock-linked grades, particularly methanol and ethylene chains, as decarbonization policy reshapes refinery and basic chemical availability.

Data Sources & Methodology

Market viewpoint synthesizes internal capacity utilization data, ongoing contract negotiations, customer feedback on lead times, and analysis of published feedstock index trends. No single source offers a full picture; we correlate shipment records, statutory market disclosures, and global trading data for triangulation.

Industry News & Regulatory Updates

Recent Market Developments

New environmental initiatives in China and EU are raising compliance thresholds for volatile organic compound emissions. Recent investments target larger single-train capacity coupled with advanced waste stream separation. Some global logistics disruptions during the past year have restructured trade flows, lengthening critical shipping routes for North American and EU buyers unable to secure local high-purity output. Custom batch projects for electric vehicle battery makers are pushing for real-time batch certification and just-in-time delivery across Asia and the EU.

Regulatory Compliance Updates

Recent updates to export and transport licensure have increased verification requirements for hazard labeling, especially on high-purity and low-residue certified batches. New GHS-compliant standards in major markets have been enforced and drive changes to documentation, packaging, and pre-shipment inspection steps—particularly for material intended for sensitive pharmaceutical or battery cell markets. Localized compliance costs for emissions and waste now drive reevaluation of older process routes.

Supplier Response & Mitigation

As a manufacturer, we’ve prioritized internal audits for regulatory preparedness, upgraded abatement and emissions-control systems, and revised supplier qualification for traceability down to the raw material lot. Stepped-up communication between production teams and downstream user quality control has reduced cycle time on specification validation for new applications. In-process adaptability remains critical—particularly rapid grade-switching, allocation balancing, and batch recertification under changing customer documentation needs.

Application Fields & Grade Selection Guide for Diethyl Carbonate

Industry Applications

Diethyl carbonate serves as a versatile solvent and intermediate across multiple industrial sectors. In battery manufacturing, it functions as a critical electrolyte solvent for lithium-ion cells, influencing conductivity and electrolyte stability. Its use in pharmaceutical synthesis centers on acting as a carbonylating and alkylating agent. Coatings manufacturers employ it as a low-toxicity, high-boiling-point solvent favoring faster drying. The electronic and specialty chemicals sectors leverage its low water content and reactivity for sensitive synthesis routes. Each application imposes specific requirements on purity, moisture content, and trace metal levels.

Grade-to-Application Mapping

Typical Application Recommended Grade Key Requirements
Lithium-ion Battery Electrolyte Production Battery/Electronic Grade Ultra-low water, low acid value, low metal ions, minimal alcohol/ester impurities
Pharmaceutical Intermediate Synthesis Pharma Grade Low aldehyde content, controlled residual solvents, batch traceability, compliance with ICH Q7 as relevant
Paints & Coatings Formulations Industrial/Solvent Grade Balanced purity vs. cost, absence of interfering volatiles, color stability
Specialty Chemicals Production Custom Grade Customized for reactivity, tailored impurity capping, consistent batch-to-batch profile

Key Parameters by Application

Moisture content is critical in electronic and battery formulations. Water levels above target reduce electrolyte performance and promote side reactions. Trace metal content, monitored down to ppm or lower, affects shelf life of battery formulations and must be maintained through dedicated purification steps. Pharmaceutical processing requires control of alkali, aldehyde, and alcohol impurities, as downstream transformations magnify trace contaminants.

Color index, controlled at the final distillation and blending stage, affects sensitivity in coatings and adhesive applications. Deviation in color specification often results from process upsets or raw material variability. In specialty chemical synthesis, the ketone or ester impurity profile is process-specific, so tailored purification strategies become necessary to match customer reactivity needs.

How to Select the Right Grade

Step 1: Define Application

Begin with a clear picture of the target downstream process. For batteries, trace components dictate separator performance. In pharma, regulatory oversight demands pharmaceutical-process suitability. For general solvents, consider the sensitivity of the end product to minor batch-to-batch differences.

Step 2: Identify Regulatory Requirements

Evaluate which local, regional, or industry guidelines apply. Projects in the United States and EU require REACH or FDA documentation for pharmaceutical and food-contact applications. Customer-driven audits may request traceability down to lot-level for pharma and high-purity electronics uses.

Step 3: Evaluate Purity Needs

Identify functional thresholds for water, acid, aldehyde, and metal contents. Not every process requires the highest purity level — for example, coatings may tolerate broader impurity ranges that would lead to non-compliance in battery or pharmaceutical applications. Test for impact on process stability or downstream reactivity using customer-specific simulation or lab-scale production.

Step 4: Consider Volume & Budget

Upscaling from kilo-lab to mass production influences grade selection. High-volume users may justify investment in grade-customization to drive down long-term costs. Lower-volume projects often default to catalog offerings, but purchaser must verify if standard lots meet all functional and compliance criteria for their end use.

Step 5: Request Sample for Validation

Always validate candidate grades through bench or pilot-scale runs. Benchmark analytical data, including chromatography and trace element profiles, against end-use application performance. Request quality and batch history records to evaluate consistency and process capability. Manufacturer technical departments support test runs and will collaborate to define optimal specification targets on request.

Trust & Compliance: Quality Certifications & Procurement Support for Diethyl Carbonate

Quality Compliance & Certifications

Quality Management Certifications

Production lines for diethyl carbonate pass regular third-party audits according to internationally recognized quality management systems. Certification scope generally covers all handling stages, from incoming raw materials to final packaging. Batch-wise traceability records are a routine part of quality system documentation, allowing comprehensive tracking of specific lots back to material batches and production events. Certification status can differ depending on export markets, regulatory requirements, and customer audit protocol.

Routine self-inspection and annual re-certification cycles form the backbone of our management system. The presence of these certifications serves to demonstrate documented process discipline rather than as a substitute for material evaluation by end users. Audit preparation includes system gap assessment, root cause review of prior incidents, and targeted corrective action plans relevant to the diethyl carbonate process.

Product-Specific Certifications

For diethyl carbonate, end-use application—particularly in lithium battery electrolyte, pharmaceutical, or specialty plastics—determines the required grade-specific certifications. These can range from meeting typical industrial chemical standards to compliance with regulatory requirements specific to target sectors. Some grades may require independent assay verification or restricted impurity profile confirmation. End-users should communicate required certification standards in advance during the procurement phase, as documentation and scope can vary by batch and application market.

All product lots leaving the site undergo rigorous internal batch verification consistent with the defined release protocol, which may include impurity, identity, and purity checks. For applications requiring additional oversight, such as pharmaceutical or electronic grades, supplementary certification steps can be coordinated per customer agreement.

Documentation & Reports

Each shipment of diethyl carbonate includes a certificate of analysis detailing analytical findings specific to that lot. These documents list test points such as appearance, assay range, moisture content, and impurity ranges defined by the customer or standard release specification for the applied grade. Supporting documentation can also be provided, including manufacturing flowcharts, process validation summaries, or material safety data, depending on customer requirements.

Technical dossiers or more extensive quality dossiers may be prepared for regulated market entry or high-purity applications. Document completeness and granularity reflect both the intended grade and any region-specific compliance needs. Requests for additional technical data or manufacturing records can be handled by the technical support team, though sensitive details about proprietary routes and raw material sources typically remain confidential.

Purchase Cooperation Instructions

Stable Production Capacity Supply and Flexible Business Cooperation Plan

Diethyl carbonate production is structured around continuous improvement and flexibility, with production planning based on both average historical demand and agreed seasonal requirements of key customers. Output scheduling balances between standard industrial grades and higher-purity specialty demand, using modular batch manufacturing for order-driven customization. Supply continuity relies on reliable sourcing, advanced demand forecasting, and redundancy in critical process equipment.

For buyers requiring multi-year off-take or just-in-time (JIT) supply, tailored supply contracts can be negotiated that specify minimum purchase volumes, delivery intervals, and grade-specific packaging. Production is adjusted based on contract commitments and real-time consumption reporting.

Core Production Capacity and Stable Supply Capability

Core diethyl carbonate production assets are supported by in-house synthesis using either direct alcohol carbonylation or ethyl methyl carbonate transesterification, selected according to raw material cost, availability, and purity profile. Each production route presents distinct impurity risks and isolation challenges. Quality assurance teams maintain real-time monitoring of critical parameters at identified control points: catalyst performance, column fractionation, and drying efficiency.

Stable supply is sustained by flexibility in route selection and buffer inventory protocols, supported by multi-source procurement of key raw materials. Emergency response planning and back-up equipment redundancy address sudden demand spikes or upstream supply interruptions, particularly in peak lithium battery production cycles.

Sample Application Process

Sample requests are processed through a dedicated technical liaison who validates application intent, preferred grade, and testing volume. Typical practice ensures small-scale material is drawn from running lots under standard production conditions. All characterization results provided with samples use batch-typical assay data, not out-of-spec test samples.

Tests involving non-standard or customer-developed analytical methods require advance notification to ensure the appropriate grade match and testing regime. Safe-handling and regulatory import support documentation is provided on request, especially for shipments destined for pharmaceutical or electronic development work.

Detailed Explanation of Flexible Cooperation Mode

Procurement cooperation adapts to the operational model of each customer. Options available include volume-based pricing, rolling forecast call-offs, or fixed annual off-take agreements with quarterly adjustment rights. Tailored contract structures address downstream project schedules, warehousing constraints, and capital planning.

Order modification, minimum delivery quantities, custom labeling, or alternate packaging specifications can be negotiated into the agreement based on volume and application. Technical support teams remain available for joint problem-solving—whether for introducing new formulations, aligning impurity profiles, or navigating novel process requirements. Regular reviews ensure both supply and technical support evolve alongside customer needs.

Market Forecast & Technical Support System for Diethyl Carbonate

Research & Development Trends

Current R&D Hotspots

Development teams have observed growing demand for diethyl carbonate (DEC) in advanced battery electrolytes, particularly for lithium-ion and sodium-ion cells. Increased purity control ranks among top topics in internal process meetings, as impurities disrupt battery performance and lead to side reactions. Another visible R&D hotspot lies in improving selectivity and yield during carbonate synthesis, with a shift toward greener, non-phosgene routes that minimize toxic byproducts.

Emerging Applications

Researchers emphasize applications in high-performance solvent systems. Besides battery electrolytes, formulators use DEC for specialty coatings, functional polymers, and in pharmaceutical synthesis as an alkylating agent, where trace moisture or residual solvents raise product qualification thresholds. Technicians evaluate batch consistency to support new downstream formulations, as trace byproducts often become a larger concern at higher application purities.

Technical Challenges & Breakthroughs

Production engineers note the primary challenge in scaling sustainable carbonylation reactions. Both excess ethanol and trace water bring complications in downstream purification, as does the control of alkali catalyst residues. Multi-column distillation has reduced some of these issues, yet batch-to-batch reproducibility in high-purity grades remains process-intensive. A recent process breakthrough involves continuous extraction-integrated distillation, presently under validation, aiming for improved throughput and lower energy consumption.

Future Outlook

Market Forecast (3-5 Years)

Based on inquiries from battery and specialty chemical sectors, sustained growth is expected, mainly in Asia-Pacific and Europe. Ultrapure grades for battery electrolytes will likely outpace commodity grade demand, driving further investment in process control and purification equipment. The availability of cost-competitive feedstocks will influence regional competitiveness. Environmental policy trends remain an ongoing risk and opportunity factor; adoption rates for green downstream applications will shape the segment mix.

Technological Evolution

Technologists anticipate further transition away from traditional phosgene-based processes toward low-emission gas-phase carbonylation and electrochemical synthesis. Modular system designs may become a focus for flexibility in switching between grades according to end-user specification. Automated control loops and inline spectroscopy tools now help operators respond more rapidly to shifts in feedstock quality or operating conditions, limiting off-spec material and supporting leaner inventory management.

Sustainability & Green Chemistry

Ongoing reviews target all production steps for waste reduction. The engineering department has reduced solvent losses with improved vapor recovery. Byproducts feed into secondary recovery streams when practical. Life cycle assessment tools guide equipment selection, and alternate raw material sourcing pilots keep options open for non-fossil ethanol inputs. The sustainability committee tracks quantifiable improvements and recommends periodic upgrades, as external audits and customer scoring increasingly emphasize environmental footprint beyond basic regulatory compliance.

Technical Support & After-Sales Service

Technical Consultation

Technical teams respond routinely to customer requests on grade selection and product compatibility, especially when end-use requires compliance with new regulatory or QA protocols. Customers developing novel electrolyte blends or polymer formulations usually engage the lab for compatibility and reactivity data. Some inquiries involve troubleshooting unexpected residue, where historical quality control records and batch samples aid root-cause analysis.

Application Optimization Support

Application engineers tailor advice to each user’s process. In battery manufacturing, electrolyte performance links closely to contaminant levels, so the team offers support on optimal handling during cell assembly and recommends filtration or drying steps matched to the selected product grade. For coatings and pharma intermediates, customers often seek procedural adjustment to manage compatibility with secondary reagents or to control evaporation rate in sensitive formulations.

After-Sales Commitment

Production and QA departments monitor feedback for trends in product consistency, packaging robustness, or transit suitability, responding directly to customer concerns through documented investigation and solution proposals. Ongoing partnerships include batch performance reviews and periodic collaborative testing when users introduce new production lines or reformulate products, supporting long-term process reliability.

Diethyl Carbonate: Direct from the Source for Industrial Buyers

As an established producer of Diethyl Carbonate, we recognize its central position in multiple sectors, from specialty chemicals to advanced battery electrolytes. Decades of engineering and continuous process improvements stand behind our Diethyl Carbonate production—chemical synthesis, purification, and formulated supply all happen on site under our direct supervision.

Our Production Focus

We control the entire manufacturing process starting with raw material selection, through synthesis and distillation, to precise filling and logistics. We invest in state-of-the-art reactors, glass-lined vessels, and digital process monitoring. This approach prevents contamination and minimizes batch-to-batch variability. All final product sampling draws directly from finished lots, checked and signed off by our in-house technical quality team. Our results consistently meet or exceed standards for Diethyl Carbonate in solvents, battery-grade electrolytes, and engineering polymers.

Key Applications Across Industries

Manufacturers in coatings, adhesives, and fine chemicals depend on our Diethyl Carbonate for its solvency, low water content, and clean reactivity. Producers of lithium-ion batteries require stringent purity and moisture standards, which we supply directly, using statistical trending and historical analytical data to maintain process control. In pharmaceuticals, we supply registered intermediates with full traceability for each shipment. Paint and resin formulators depend on predictable flash points and controlled evaporation rates, supporting product development without batch reinterpretation.

Product Consistency and Quality Assurance

We run ongoing verification at every production stage, including identity checks, purity by gas chromatography, water by Karl Fischer analysis, and ongoing analyses for residual acid, color, and odorous byproducts. Our process operators and QA staff work from a unified digital workflow, which means repeatable, certified results—verified on each lot before approval for shipping. If market demand changes or regulatory standards move higher, we address those updates in real-time with internal testing protocols and scaled pilot runs.

Packaging and Delivery Capabilities

On-site filling lines handle Diethyl Carbonate in drums, IBCs, and bulk tankers. We maintain packaging stock to support call-off agreements and quick release schedules. Each filled container receives a traceable seal, and all packaging design complies with standard transportation guidelines for flammable liquids. Our close control of packaging and logistics helps buyers reduce inventory risks and avoid delivery delays, even on tight project timelines.

Technical Backing for Industrial Buyers

Purchase support at our factory extends beyond shipment. Technical teams help new customers with validation runs, solvent compatibility trials, and change management. Experienced engineers review customer tank systems, on-site procedures, and regulatory compliance—minimizing on-boarding time for new industrial users. Documentation packages include certificates, historical data, and regulatory dossiers specific to each sector.

Business Value for Manufacturers and Procurement Teams

Direct engagement with our factory eliminates uncertainty around specification control, traceability, and on-time delivery. Procurement teams leverage our technical depth for material auditing and supplier reviews. Strategic sourcing alliances with our plant equip commercial buyers with volume flexibility, long-term supply agreements, and operational insights tied to actual plant data. No agency or outside intermediaries dilute information or delay response times. This approach supports efficient operations and builds supply confidence for high-spec Diethyl Carbonate users.

Industrial FAQ

What are the typical purity specifications and physical properties of Diethyl Carbonate used in industrial applications?

As a direct manufacturer of Diethyl Carbonate, our daily focus keeps us close to the real requirements of chemical processes that depend on this solvent. Consistency in purity and physical behavior plays a major role for customers in batteries, pharmaceuticals, and advanced coatings. That expectation shapes every lot that leaves our facility.

Purity Specifications Set the Standard

We routinely achieve a minimum Diethyl Carbonate assay of 99.5%. This degree of purity never happens by accident. Each step of our production, from raw material sourcing and continuous distillation up to final filtration, aims at removing by-products, residual ethanol, and color bodies. Our labs verify that water content stays below 0.05%, because even moderate moisture interferes with lithium-ion electrolytes or critical synthesis stages in organic chemistry. Typically, we keep limits on related carbonates and esters well below 0.2% to ensure downstream reactions perform as engineered. Acid number is also tightly controlled—always below 0.01 mg KOH/g—so we do not introduce corrosion risk to equipment in formulation or during transport.

Physical Properties Matter for Handling and Downstream Use

Our Diethyl Carbonate offers a boiling range between 125°C and 128°C, which enables predictable evaporation profiles for clients in coatings or adhesive formulations. The density at 20°C typically remains around 0.973 g/cm³, allowing reliable dosing and mixing routines, whether at pilot scale or in full manufacturing. Viscosity comes in quite low (around 0.7 mPa·s at 25°C), supporting high flow rates and excellent wetting, especially where fast solvent exchange is essential. We pay close attention to color as well — our product meets an APHA value below 10, so yellowing or contamination doesn’t disrupt optical or performance requirements down the line. Odor, while not usually flagged in typical spec sheets, still matters to customers operating in closed environments; our process reduces contaminants that create off-odors, an issue that’s often tied to trace impurities left behind by less precise manufacturing.

Why High Purity Pays Off for Industrial Users

Many end users in lithium battery manufacturing, pharma synthesis, and advanced coatings tell us that batch-to-batch reliability cuts production downtime significantly. Residual alcohols, acidic trace contaminants, and water all end up causing yields to drop or unwanted by-products to form. On our end, investment in in-line analytics and batch-certified controls lets us spot and eliminate these variances before drums ever reach a customer. Some projects need custom lot certification or more detailed impurity panels, which our technical team can provide. Traceability extends backward through the entire production chain, which secures compliance for regulated industries and reassurance for clients assessed by ISO or environmental inspectors.

Solving Real-World Production Challenges

We did not reach our current standards by following generic chemical pathways. Our team re-engineered stages of purification more than once after seeing how end-use performance changes with traceable side products. Regular feedback loops with industrial clients and research partners brought to light less common impurity-related failure modes, especially for growing sectors like high-voltage battery electrolyte blends. Over time, slight tweaks to distillation profiles and post-polishing steps gave us tighter spec windows and even cleaner analytical profiles.

Our stance remains simple: a solvent specification should never hold back the potential of a customer’s process. High-purity, well-characterized Diethyl Carbonate can be the difference between smooth scale-up and costly troubleshooting. As the manufacturer, we keep our standards transparent, achievable at scale, and always open for technical discussion. Detailed, lot-specific reports and customization options are always available upon request—direct from our facility to yours.

What packaging sizes and minimum order quantities are available for Diethyl Carbonate procurement?

As a chemical manufacturer with decades invested in Diethyl Carbonate production, we understand the attention buyers pay to packaging options and order quantities. These details influence logistics costs, storage plans, regulatory documentation, and process efficiency on our clients’ end. Regulatory requirements for storage and transport push everyone in our industry to approach packaging with both safety and operational practicality in mind. From our experience, clear, up-front information on these points streamlines procurement and lets clients plan without added uncertainty.

Available Packaging Sizes

Our facilities fill Diethyl Carbonate in several packaging sizes aimed at covering bulk producers, blenders, specialist research, and smaller-scale operations. Most of our output goes into 200 kg steel drums as this balances manageable drum handling with optimized shipment by sea or truck. These drums meet chemical compatibility and safety protocols for hazardous liquids, providing a robust solution for most industrial users. Our process lines also handle IBC totes (about 1000 liters), which allow users to reduce container handling, access higher volumes per unit, and cut down on packaging waste. IBCs fit best in cases where rapid consumption links up with automated or bulk transfer systems.

For larger importing and distribution needs, our production lines load bulk tank trucks and ISO containers. These options fit well when customers run continuous production or blending of finished chemical products on a volume scale. We can arrange filling to specific batch sizes to support just-in-time delivery and tank farm replenishment, given advance scheduling. Our technical team offers guidance about necessary tank safety features and connection requirements for companies setting up bulk reception facilities.

Minimum Order Quantities

We manufacture Diethyl Carbonate at scale to support both ongoing and project-based consumption. Our minimum order for drums starts at 80 drums (about 16 metric tons), which covers a full palletized truck shipment or container for export. Small lot requests—such as single drums or pails—don’t fit our current production and filling set-up. IBC totes run on a similar minimum basis, typically full truck or container loads depending on the specific logistics scenario. Bulk deliveries begin at one full tank truck or ISO tank, aligning with standard road and ocean freight capacities.

Efficient supply chain management remains critical as regulatory controls over chemical tracking, shipping documentation, and export licensing tighten worldwide. Aligning minimum order quantities with standard transport units not only ensures compliance, but also controls cost per kilogram, and maintains our company’s position as a reliable industrial supplier. By focusing on full-container logistics, we minimize transit gaps and expedite customs handling for our clients.

Custom and Special Packaging

Some downstream processes or unique plant set-ups call for specialized packaging. Our operations can consider non-standard volumes or alternative container types for large, ongoing projects with advanced planning. Every custom request gets reviewed by our technical and logistics team to ensure both regulatory compliance and safe handling from plant to end-user. Over the years, we’ve worked with industrial consumers to overcome local regulatory limitations or warehousing restrictions by modifying secondary containment, labeling details, and batch traceability documentation tied to Diethyl Carbonate packaging.

We continue to invest in process improvements and explore more sustainable packaging wherever possible. For every client, our team serves as the direct source for technical details, safety advice, and long-run supply commitments—all managed directly from our production facilities.

Are there specific transport regulations or documentation requirements for shipping Diethyl Carbonate internationally?

Understanding the Realities of Transporting Diethyl Carbonate Across Borders

Moving Diethyl Carbonate from our production facility to customers in different countries takes more than logistical know-how. Every shipment faces a web of international transport regulations based on the chemical's classification. Our business manufactures significant volumes each quarter and, in turn, directly shoulders regulatory compliance and documentation for every export order.

Diethyl Carbonate gets categorized as a regulated chemical under a variety of global frameworks. Since it carries both flammable liquid and industrial chemical designations, every step from our drums or containers to your receiving dock requires strict attention to regulatory detail.

International Transport Regulations

During routine shipment planning, our logistics department confirms current UN numbers and shipping categories by cross-checking databases such as the International Maritime Dangerous Goods (IMDG) Code and the International Air Transport Association (IATA) Dangerous Goods Regulations. For Diethyl Carbonate, transport falls under UN1161. This material qualifies as a Class 3 flammable liquid. That classification impacts packaging, labeling, recommended transit routes, documentation, and emergency procedures, which we address with every export batch.

Each shipping case starts with packaging selection. Our standard packaging—typically steel drums or ISO tanks—meets the pressure, temperature, and materials handling standards imposed by international guidelines. Labels always include hazard symbols, the proper shipping name, the recognized UN number, and the full address of shipper and consignee.

Compliance and Documentation Requirements

Document preparation demands accuracy and discipline. Our shipping dossiers contain Safety Data Sheets (SDS), Certificate of Analysis (COA), commercial invoices, packing lists, and, where requested by custom authorities, Dangerous Goods Declarations. The SDS always reflects the latest regulatory amendments to REACH, OSHA, and GHS standards. We update these documents regularly, drawing from test results and real plant data.

In some countries, customs agencies want proof that a chemical meets environmental and safety requirements. For this, our legal team preemptively compiles prior registration numbers or pre-market notifications, if required. This accelerates customs clearance—not just for a single order, but safeguards continuity of supply for our partners.

Carrier selection matters as much as documentation. Only transporters approved for dangerous goods touch our outgoing loads. Every shipment traces through secure channels, with GPS updates available for key accounts. This mitigates diversion risks while supporting robust compliance practice.

Practical Solutions to Industry Challenges

Regulatory complexity grows every year. Our technical support specialists work directly with end-users and freight partners, translating dense legal language into practical shipping steps. We assign dedicated export coordinators who focus solely on cross-border chemical movements, keeping workflows efficient and responsive.

Failure on paperwork or labeling risks shipment detention or product loss. We built out audit-ready processes over decades, learning from both regulatory shifts and real-world experience with border officials across dozens of countries. Every product moves with a complete documentation set and verified compliance on both export and import ends.

Expecting export shipments of Diethyl Carbonate from our plant means partnering with a producer that controls its quality, regulatory, and logistical chains at the source. We streamline border crossings not by shortcuts, but by respecting the global safety framework and using proven checks at every critical step. Our customers benefit from full transparency, prompt document delivery, and regulatory peace of mind on every international order leaving our site.

Technical Support & Inquiry

For product inquiries, sample requests, quotations or after-sales support, please feel free to contact me directly via sales3@ascent-chem.com, +8615365186327 or WhatsApp: +8615365186327