| Names | |
|---|---|
| Preferred IUPAC name | Butan-1-ol |
| Other names | 1-Butanol n-Butyl alcohol Butan-1-ol Butyl alcohol Butanol Propylcarbinol |
| Pronunciation | /ɛn-ˈbjuː.tə.nɒl/ |
| Identifiers | |
| CAS Number | 71-36-3 |
| Beilstein Reference | 604173 |
| ChEBI | CHEBI:28885 |
| ChEMBL | CHEMBL181882 |
| ChemSpider | Synonym: 1-Butanol; ChemSpider ID: 259 |
| DrugBank | DB02130 |
| ECHA InfoCard | 100.004.440 |
| EC Number | 200-751-6 |
| Gmelin Reference | 60429 |
| KEGG | C00474 |
| MeSH | D001070 |
| PubChem CID | 263 |
| RTECS number | EO1400000 |
| UNII | 3K9958V90M |
| UN number | UN1120 |
| Properties | |
| Chemical formula | C4H10O |
| Molar mass | 74.12 g/mol |
| Appearance | Colorless liquid with a characteristic odor |
| Odor | Characteristic, sweetish, alcoholic |
| Density | 0.81 g/cm³ |
| Solubility in water | 73 g/L (20 °C) |
| log P | 0.88 |
| Vapor pressure | 0.56 kPa (at 20 °C) |
| Acidity (pKa) | 15.9 |
| Basicity (pKb) | 15.2 |
| Magnetic susceptibility (χ) | -55.4×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.3993 |
| Viscosity | 4.12 cP at 25°C |
| Dipole moment | 2.89 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 282.7 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -327.6 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | –2676 kJ/mol |
| Pharmacology | |
| ATC code | C07AB92 |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS02,GHS07 |
| Signal word | Warning |
| Hazard statements | H226, H302, H315, H318, H335, H336 |
| Precautionary statements | P210, P233, P240, P241, P242, P243, P264, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P312, P337+P313, P370+P378, P403+P235, P405, P501 |
| NFPA 704 (fire diamond) | 2-2-0 |
| Flash point | 35°C |
| Autoignition temperature | 343 °C |
| Explosive limits | 1.4% - 11.2% |
| Lethal dose or concentration | LD50 Oral Rat 790 mg/kg |
| LD50 (median dose) | LD50 (median dose): 790 mg/kg (rat, oral) |
| NIOSH | PB8925049 |
| PEL (Permissible) | PEL: 100 ppm (300 mg/m³) |
| REL (Recommended) | 200 mg/m3 |
| IDLH (Immediate danger) | 1400 ppm |
| Related compounds | |
| Related compounds | Isobutanol sec-Butanol tert-Butanol Butane Butanoic acid Butyraldehyde Crotyl alcohol |
| Parameter | Description |
|---|---|
| Product Name | n-Butanol |
| IUPAC Name | Butan-1-ol |
| Chemical Formula | C4H10O |
| Synonyms & Trade Names | 1-Butanol, Butyl alcohol, n-Butyl alcohol |
| CAS Number | 71-36-3 |
| HS Code & Customs Classification | 2905.13.00 (Generally subject to regional customs interpretation and grade designation) |
Technically, the majority of current industrial n-Butanol production follows the oxo process. This route uses propylene as a feedstock, selecting catalyst type and process conditions based on plant design and targeted purity grade. Raw material input quality guides process control. By-products and impurities—mainly isobutanol, aldehydes, higher alcohols—are managed through sequence distillation. Distillation mode changes depending on the required purity: technical, reagent, or pharma grades each require specific cut controls and secondary treatments.
Monitoring batch-to-batch consistency for key physical-chemical indices primarily relies on GC area normalization and periodic titrimetric checks, both validated against external standards. We resolve process upsets at the in-process control stage, as deviation in catalyst efficiency leads to unwanted by-product profiles with downstream impact on product usability for sensitive applications.
Purity, moisture, and residual aldehyde content are grade-dependent. High-purity n-Butanol—intended for coatings, pharmaceuticals, or electronics—often involves further fractionation and post-treatment. For solvent and industrial chemical applications, technical grade with controlled minor impurities suffices, but downstream users must reconcile allowable impurity content against their end production needs.
Product usability in resin production, agricultural chemicals, or textile processing depends on the aldehyde fraction and trace water, as both influence system performance and compatibility. Formulators using n-Butanol for specialty esters or lubricants may request batch release with clearly defined impurity profiles, driven by regional or customer-specific certification requirements.
n-Butanol’s volatility and mild water solubility affect bulk storage. Water pick-up alters physical behavior and downstream reactivity, especially for applications in coatings or polymer processing where water acts as a catalyst poison or disrupts system rheology. Drum and tank storage environments demand humidity management; color and odor changes signal oxidation or impurity ingress. Quality control teams monitor for peroxides and aldehyde build-up in warehouse storage, intervening by reprocessing or downgrading off-spec material.
Customs and trade compliance apply HS code 2905.13.00 to n-Butanol, regardless of manufacturing origin, yet authorities may require detailed grade labelling or impurity disclosure depending on end-use declaration, especially for pharma or food-contact intermediates. Export documentation aligns product lot tracking with regulatory expectations for traceability and import inspection.
n-Butanol typically appears as a clear, colorless to slightly yellow liquid with a strong, characteristic alcohol odor. The physical state remains liquid at room temperature unless the grade contains water or other solvents, which can influence turbidity and phase behavior. Melting and boiling points vary by grade purity—impurities such as aldehydes or higher alcohols can shift measured values. Bulk storage often records boiling points near 117°C, but actual readings depend on atmospheric pressure and sample composition. Density also reflects grade, commonly measured by calibrated digital densimeters. Deviation from expected density signals contamination or blending outside standard parameters.
n-Butanol maintains chemical stability in closed systems and under inert gas blanketing. Open systems, especially at elevated temperature or with air ingress, increase risk of slow peroxide formation. Reactivity concerns include strong oxidizers and acids; these must be kept away during storage and transfer. Operators monitor storage tank conditions regularly—rising acidity or off-odor indicates product age or exposure to incompatible materials.
The product dissolves well in water, but only up to a moderate percentage; above this, two phases can separate unless mixing is continuous. Solubility in organic solvents like ether or acetone is high and generally shows negligible grade-to-grade variation. Blending by weight ensures accurate dilution, but temperature and agitation both control final mixture uniformity when used as a process solvent or formulation component.
n-Butanol manufacturers supply technical, industrial, and reagent grades. Each grade targets specific applications: coatings, plastics, or pharmaceutical intermediates. Detailed specifications are provided per batch:
| Parameter | Technical Grade | Industrial Grade | Reagent Grade |
|---|---|---|---|
| Assay (% by GC) | Typical values set by customer contract | Range per downstream demand | Subject to higher purity criteria |
| Water Content (%) | Depends on process route/washing efficiency | Batch-specific, reported per COA | Minimized during final distillation |
| Key Impurities (Aldehydes, Iso-butanol) | Defined by process and catalyst performance | Process-specific | Tightly controlled by additional purification |
Organic and inorganic impurities arise from raw materials and synthesis route. Aldehyde levels, isomeric butanols, trace metals from catalyst residues, and residuals from water washing are monitored. Quality parameters align with industry standards and buyer requirements; actual acceptance limits specified in internal release specifications.
Routine tests rely on calibrated gas chromatography, Karl Fischer titration for water, and UV/Vis techniques for color. Method selection matches the impurity concern and grade requirement. Final release standards reference either internal standards or widely recognized industrial norms on an as-applicable basis.
Crude butylene and purified propylene serve as primary raw materials. Source selection focuses on supply consistency, hydrocarbon purity, and logistics cost. Feedstock impurities directly affect process yield and product quality, so incoming quality must be validated before batch start.
Most industrial n-butanol production uses oxo synthesis (hydroformylation) of propylene, followed by hydrogenation of butyraldehyde intermediate. Catalysts and process parameters (pressure, temperature, residence time) are set to maximize conversion and minimize by-products. Alternative routes, like fermentation, are process-specific and limited to certain applications.
Key control points include catalyst feed, feedstock flow, reactor temperature, and gas composition. Unreacted gases are recycled; side stream removal handles heavier or lighter by-products. Final purification uses fractional distillation, ensuring product meets customer specifications. In-line and at-line analytics guide adjustments, and deviations are flagged for remedial action before batch completion.
Every lot undergoes full specification testing. Final release decisions rest on compliance with both internal and customer-agreed requirements. Reprocessing or blending may be needed if a batch falls outside target ranges; such batches are segregated and documented as per quality management system protocols.
n-Butanol undergoes esterification, etherification, oxidation, and dehydration. Most downstream modification depends on end-use: plasticizer synthesis favors esterification, while specialty solvents often require further functionalization.
Typical reactions use acid or base catalysis, with temperature ranging widely based on downstream process. Solvent selection (or neat operation) varies per synthetic step and scale. Each reaction step is monitored to manage exotherm and ensure selectivity, since side reactions can produce unwanted isomers or heavy residues.
Major derivatives include butyl acrylate, butyl acetate, pharmaceutical intermediates, and solvents for lacquers and coatings. The modification potential links directly to the purity and stability profile required by the end-market.
Bulk storage favors mild steel or coated tanks with adequate venting. Temperature control prevents excessive vaporization and reduces peroxide risk. Operators avoid light and air ingress, as prolonged exposure promotes degradation, especially in technical and pure grades. Moisture control matters most for high-purity grades—humidity spikes correlate with water pickup or phase separation.
Mild steel, stainless steel, and certain plastics (e.g., HDPE) show adequate compatibility, with metal tanks often used for industrial grades. Aluminum and zinc alloys are avoided due to possible corrosion in presence of even trace acidic impurities.
Shelf life varies by grade, handling, and package integrity. Main degradation markers include discoloration, haze, or sharp, pungent odor, signaling peroxide or aldehyde buildup. Shelf life is checked by periodic sampling and compared to reference standards. Extended storage in improperly sealed tanks noticeably accelerates degradation.
n-Butanol falls under flammable liquid categories, with health hazards including acute toxicity by inhalation and dermal exposure. Classification specifics depend on the regional regulatory submission and the batch’s physical parameters.
Direct contact irritates eyes and skin. Vapors affect the central nervous system, particularly in poorly ventilated areas. Absorption via inhalation, skin, or ingestion can have acute health effects, so local exhaust and personal protective equipment are used at all handling steps.
Available toxicity data shows notable central nervous system effects at high exposure. Occupational limits align with local government and trade association guidance, which gets reviewed by site safety officers. Operators use closed systems, local exhaust, and wear chemical-resistant gloves, goggles, and flame-retardant clothing. Emergency response follows site-specific incident and exposure plans, with rapid decontamination as standard practice.
Production capacity for n-butanol depends heavily on the process route and feedstock allocation. At our facilities, n-butanol comes from both oxo alcohol synthesis and fermentation-derived pathways, with oxo synthesis accounting for the majority of global industrial supply. Capacity utilization fluctuates alongside downstream solvent and plasticizer demand. Output can run at reduced rates during feedstock volatility or major turnarounds. For contract customers, annual volume agreements and safety stock arrangements help stabilize availability. Spot cargo allocation is subject to plant loads and regional logistics.
Lead times for n-butanol shipments typically range between one to three weeks from order confirmation, contingent on product grade, packaging, and market region. MOQ varies: bulk road tankers and isotanks allow for lower MOQ, while drum and IBC shipments often carry higher thresholds due to handling costs and inventory turnover requirements. Lead times compress for repeat off-take partners with established scheduling.
Most industrial grade n-butanol is delivered in bulk—either in tank trucks or containerized isotanks. Higher purity grades, or customer-specified lots, may ship in steel drums or IBCs. Packaging strategy aligns with product volatility, customer handling safety, and transportation route. Packaging choice also influences shelf life, contamination risk and product re-testing needs.
Shipping terms are negotiated per Incoterms, with FCA, FOB, and CIF as the most requested. For export, regulatory documentation and shipping declarations follow local chemical regulations and IMDG classification. Payment terms for established clients typically run on net 30 to net 60 day cycles, with advance payment or L/C options available for new partners or high-risk geographies. Shipment release depends on financial clearance and export control compliance.
At the manufacturing level, the n-butanol cost structure follows the economics of the propylene feedstock (for oxo route) or fermentation substrate (for bio-based supply). Propylene pricing sets the base cost for most global producers, with purchasing tied to monthly or quarterly contracts. Bio-based n-butanol, used in niche or certified “green” applications, carries premiums due to limited scale and substrate price volatility. Major price swings stem from propylene market movements, refinery turnarounds, or demand shifts in competing propylene derivatives like acrylates and plasticizers. Energy inputs, utilities, and compliance overheads add secondary cost elements.
Pricing grades reflect significant differences in purification level, impurity specifications, and intended end use. Technical and industrial grades command standard rates, while higher-purity or low-peroxide grades enter at a premium due to additional distillation and in-process control requirements. Orders requiring certified food, pharmaceutical, or electronic grades further increase costs due to batch release testing, QA documentation, and traceability. Bulk packaging carries lower unit cost versus drums or IBCs given handling and input-output losses, while dangerous goods certifications may add surcharges in regulated markets.
The n-butanol market remains closely integrated with both propylene availability and downstream solvent/plasticizer consumption. Significant production centers include East Asia, Western Europe, and North America. Consolidation in the acrylics and plasticizer sectors can cause regional imbalances, especially when feedstock contracts shift or production outages occur. Seasonal maintenance in key downstream plants in China and the EU can sharply affect regional spot price discovery.
US manufacturers operate large-scale plants on integrated petrochemical sites, resulting in efficient supply but exposure to local propylene pricing. In the EU, environmental regulation, energy costs, and REACH compliance influence local cost structures. Japanese producers emphasize purified and specialty grades for high-value markets, often at smaller batch scale. In India, demand expansion outpaces domestic supply, leading to a reliance on imports, exposed to currency and shipping cost variability. China’s market reflects both significant onshore capacity and a volatile demand profile, with internal transportation and storage costs exerting strong regional price differentials.
Forecasting forward to 2026, pricing is expected to track with propylene feedstock trends and infrastructural investment in new capacity. Industry consultancy projections see moderate long-term price escalation subject to energy cost trends, feedstock policy, and capacity additions in Asia-Pacific. Disruptions such as local environmental shutdowns or global freight imbalances can override typical supply-demand cycles. Data for this analysis draws from published industry indices, market reports, and internal benchmarking across key production geographies.
Recent years have brought new investments in propylene-based capacity in Asia and expansions in the US Gulf Coast. Temporary production cuts due to energy price spikes or environmental incidents have driven price volatility in some regions. Heightened demand for lower-emission solvents has prompted more inquiries into bio-based and certified sustainable n-butanol, putting pressure on supply flexibility for specialty grades.
REACH registration and ongoing updates to VOC regulations in the EU continue to shape product stewardship requirements. In the US, state-level chemical policy changes influence shipping documentation, particularly for solvent use in consumer products. Compliance management now requires robust change tracking and batch-level documentation, especially for customers operating under international quality standards.
To address changing regulatory landscapes, we have enhanced compliance verification and batch traceability, updated SDS and hazard labelling to meet the most current requirements, and intensified QA oversight on purification and packaging protocols. On the supply side, risk management includes raw material contract diversification and dedicated safety stock planning to support critical contract customers facing downstream regulatory deadlines.
n-Butanol manufactured at scale serves as a critical intermediate and solvent across multiple sectors. It enters coatings, adhesives, plasticizers, extractants, cleaning formulations, and specialty chemicals production. Each field calls for grades aligned to the technical and safety requirements unique to that segment.
| Industry Field | Grade Typically Used | Properties Prioritized |
|---|---|---|
| Coatings, Paints, Inks | Industrial/High Purity | Odor, aldehyde/ketone content, moisture |
| Plasticizer/Ester Manufacturing | Technical/Industrial | Esters, water, acid number, residual catalyst |
| Pharmaceutical and Fine Chemicals | Pharma/Analytical | Purity, trace metals, carbonyls, non-volatile residue |
| Extraction & Cleaning | Technical/General | Color, residue, total alcohols |
| Agrochemicals, Lubricants, Personal Care | Formulation/Industrial | Regulatory status, odor, solvency |
Consistent chemical composition, impurity profile, and organoleptic attributes differentiate grades. In resins and coatings, emphasis lands on minimized carbonyls and batch odor homogeneity. For plasticizer and ester synthesis, minor acid or ester co-products impact downstream catalyst selectivity and final polymer clarity. High purity for pharmaceutical synthesis answers both safety and yield, as any cross-contamination or trace metal deviation directly affects qualifying the batch.
Moisture and volatile impurities are critical for electronics or high-end coatings, where defects or haze must be excluded. Extraction-grade requires minimal coloration and absence of insolubles for clear product phase separation during washing or solvent recovery.
Start with the end use. Coatings, pharmaceutical synthesis, and extractives all demand different impurity profiles and compositional consistencies. Misalignment here introduces yield loss, off-odor, or regulatory non-compliance later in the process chain.
Check overarching and regional regulations impacting your field: REACH for the EU, EPA for the United States, or country-specific pharmaceutical standards can dictate trace contaminant maxima, labeling obligations, or registration status.
Define minimal required content: most technical and industrial uses accept trace impurity windows, while food-contact, pharma, or electronic applications often need tighter control on acidic/neutral residues, trace organics, and water content.
Production cost links to grade, purification method, and batch size. Upgrading from a standard to a high-purity grade involves more rigorous distillation, polishing, and QA release. Large volume contracts may justify on-spec customization. Budget, logistics, and timing play a part in selection.
Lab and pilot-scale testing with candidate material from the intended production campaign uncover performance in the actual formulation or process. Fit-for-purpose grade selection relies on real downstream results. Consistency between test batch and future supply must match—compliance data, batch records, and historical QC summaries support technical evaluation.
n-Butanol manufacturing plants operate under management systems aligned with globally recognized standards for process consistency and traceability. Certification is maintained through ongoing third-party audits focusing on real production processes, laboratory controls, and corrective-action mechanisms. Internal documentation includes batch genealogy, deviation management, and regular revalidation of analytical methods. Any customer or regulatory inspection receives complete trace chain access from raw materials to release analytics.
Quality documentation for n-Butanol commonly addresses requirements of REACH, GHS, and relevant chemical inventory registration according to destination market. Applications in sectors such as coatings or pharmaceuticals may involve tailored certifications or regulatory statements, with conformance established per batch based on end-use industry. Where customers require food, pharma, or electronics grades, we rely on designated production lines, with dedicated QA criteria assessed on a lot-by-lot basis.
Each shipment is accompanied by a Certificate of Analysis reflecting batch-specific analytical results. Specifications are outlined in advance according to contract or customer discussion; additional technical documentation such as impurity profiles, material safety data sheets, and stability evidence is available on request. Traceability and release records are maintained for post-shipment review, and periodic re-certification of testing standards ensures long-term reporting accuracy.
The production layout is sized for year-round output, allowing for buffer stock during peak demand seasons. Procurement partners benefit from forecast-linked production scheduling and multi-modal logistics planning to minimize disruption risk. Strategic reserves at local depots support rapid response to regional supply interruptions. Contract structures can reflect fixed-quantity calls or rolling orders, according to customer usage variability.
Core plant units rely on upstream integration of feedstock and redundancy in key operational equipment. Scheduled preventative maintenance and digital plant monitoring limit unplanned outages. Production managers review every shift’s yield and performance data, with root-cause protocols in place for any parameter deviation. Customers with critical supply needs receive joint supply planning support, including on-call technical liaisons.
For downstream application design or qualification, technical representatives review customer technical goals and determine the most appropriate grade of n-Butanol for sampling. All sample dispatches are logged in the plant’s quality system, and reference retains are held for comparative investigation if discrepancies arise. Customers receive the same technical documentation and batch-level analysis as with regular orders. Feedback routes are established to capture performance data or adjust supply specifications for joint product development.
Manufacturing and commercial teams jointly define business models suiting customer input variability, inventory strategies, and delivery preferences. These include consignment stock, vendor-managed inventory, split-shipment, and rolling forecast plans, implemented with regular business reviews to address new technical or supply needs. For projects requiring product modifications or new analytical protocol, the technical team engages in early-stage discussion for setting specification windows, adjusting verification methods, and trial production scale-up before full commercial rollout.
Technical teams have focused on process intensification for n-butanol synthesis using renewable feedstocks and catalytic conversion routes. Competitive interest centers on lowering production costs through cellulosic material upgrading, integrating bioprocessing steps, and selecting catalysts that minimize byproduct formation. In industrial plants, optimizing reaction yields and separation efficiency receives the most internal R&D resources.
End users have pushed n-butanol into new roles beyond traditional solvent and plasticizer bases. Notable directions include its use as a feedstock for high-purity esters in electronic chemicals, and as a renewable component in sustainable fuels. Requirements for higher GHG-reduction pathways drive biotechnological exploration, with customers specifying n-butanol for selective hydrogenation and as an intermediate in next-generation surfactants and lubricants. Suitability for a given application remains tied to grade purity, residual water content, and low carbonyl impurity profiles.
Consistent batch-to-batch purity management underscores scale-up from bench to industrial volume. Maintaining aldehyde and acid content below customer-referenced trigger levels demands advanced control loops and real-time process analytics. Recent breakthroughs include membrane separations that lower energy input and pilot trials of engineered microbial strains with stable tolerance to butanol concentrations. Product variability linked to bio-based routes is addressed by tight blending and specification-driven QC checkpoints.
Market analysts expect shifting demand patterns in Asia and North America, responding to construction, coatings, adhesives, and flexible plastics output. Volatility in feedstock pricing directly impacts profit margin; the trend moves toward captive integration of raw materials alongside butanol units. As customers increase scrutiny of traceability and origin, the share of bio-based and low-carbon n-butanol is projected to expand—subject to price parity and regulatory incentives.
Onsite integration of process analytics and digitalized DCS control has accelerated troubleshooting, minimized off-grade events, and improved custody transfer data. Plant operators now implement inline monitoring for residual methanol and iso-butanol, offering tighter release windows for specialized grades. Downstream manufacturers specify butanol chain-length distribution when formulating performance polymers, requiring primary suppliers to invest in isomeric separation capability.
Sourcing renewable carbon streams and implementing closed-loop utilities reflect growing customer mandates for reduced environmental footprint. Most commercial units examine waste minimization strategies, solvent recovery circuit optimization, and emission reduction. Green chemistry initiatives track not just raw material origin but also catalyst recycle, waste water COD control, and reduction in direct process emissions for all grades of n-butanol.
Application engineers provide guidance based on end-use compatibility, particularly on solvent power, evaporation range, and byproduct solubility. Assistance covers troubleshooting batch inconsistencies, addressing specification drift, and supporting audits on trace impurity verification. Teams draw from internal incident tracking to offer corrective actions for plant users dealing with formulation or equipment-related upsets.
Technical specialists visit customer installations to validate process modifications, especially during scale-up or reformulation using new butanol grades. Process simulations and mixing studies integrate directly with plant conditions, reflecting the impact of feedstock quality and grade-dependent properties—such as water tolerance, peroxide stability, and interaction with typical co-formulants or catalysts.
After each shipment, field support teams remain available for any unanticipated handling, storage, or downstream processing scenarios. Rapid response protocols activate for shipment claims, batch deviations, or requests for additional analytical documentation. In the event of transitions to renewable grades or changes in national chemical regulations, technical staff maintain communication with customer labs to ensure seamless product qualification or transfer of documentation required for compliance audits.
| Area | Industrial Observation | Grade Dependency | Application Sensitivity | Operational Impact |
|---|---|---|---|---|
| Purity | Release based on internal chromatographic analysis and customer-defined threshold acceptance. | Stringency rises with electronic, pharmaceutical, and food-contact applications. | Solvent use tolerates lower impurity; syntheses and electronics demand higher grade. | Determines filter selection, tank cleaning cycles, and downstream catalyst life. |
| Moisture | Online analyzers provide moisture content tracking during bulk storage and every transfer. | Lower water limits for esters, resins, and water-sensitive formulations. | Adverse effects in applications where water reacts or inhibits catalysis. | Impacts packaging method, inert gas use, duration of open handling. |
| Carbonyls & Acidity | Monitored for runoff during synthesis; root-cause traced in case of off-spec shipment. | Grades for pharmaceuticals or electronics require closer control against these trace contaminants. | Key variable for downstream polymerization and esterification yields. | Influences shelf stability, packaging, and the requirement of stabilizer addition. |
| Byproducts | Plants monitor isomeric and residual co-products by GC/IR as part of normal QC. | Exposure limits set by market segment and country regulation. | Some downstream processes require extremely low isobutanol content for reaction selectivity. | Affects tank segregation, blending, and logistics scheduling. |
As a chemical manufacturer with operational focus on n-Butanol production, our commitment starts with mastering the synthesis process and maintaining an uninterrupted link between plant output and industrial demand. n-Butanol moves through diverse sectors, and our approach reflects this reality—driven by day-to-day control over batch consistency, specification discipline, and readiness to meet high-volume requirements.
n-Butanol plays a vital part in the manufacture of coatings, adhesives, and plasticizers. Our production lines target specifications used in butyl acrylate and butyl acetate synthesis, pushing both purity and supply capacity for resin and solvent manufacturers. Paint formulators receive material with low water and aldehyde content, keeping formulation performance predictable batch after batch. In plasticizer production, our process supports esterification efficiency that downstream processors rely on for output stability. Textile auxiliaries and printing ink producers operate with confidence when they know variation in raw material quality remains tightly controlled. For lube oil additives and specialty chemical intermediates, trace impurity management directly supports downstream product performance.
Direct management over each production stage lets us tune quality checkpoints at key transfer and storage points. Inline analytics, trained operators, and regular calibration of instrumentation keep process drift in check—reducing uncertainty for industrial buyers. Specification testing covers water content, acidity, and byproduct profiles in compliance with international and customer-nominated standards. Batch tracking supports lot-wise traceability, while sampling covers every tank dispatch. Our labs intervene promptly when parameters trend toward critical limits—realigning process conditions and minimizing risk for downstream applications.
Bulk end-users and formulators gain flexibility with drum, IBC, and isotank solutions dispatched from our storage terminal. High-throughput filling lines handle custom packaging for manufacturing plants on tight turnaround schedules. Supply allocation aligns with customer forecasts to avoid production interruptions. Well-established distribution logistics cover direct loading at plant gates and prompt delivery to export ports or domestic warehouses. Reliability in supply sits at the core of finished goods planning for our customers, limiting downtime and disruption at their sites.
Process engineers, procurement specialists, and R&D teams benefit from technical guidance specific to application needs. Our chemists and technical service staff engage directly with plant teams during process qualification, material changeovers, or scale-up assessments. Guidance spans solvent recovery questions, product compatibility, and safe storage or handling protocols. Plant trials and sample dispatch programs accelerate time-to-commercialization for new projects, reducing trial-and-error learning curves at customer sites.
Manufacturers working with n-Butanol producers look beyond catalog listings. They require clear specification transparency and the ability to coordinate supply volume to their actual consumption trends. Distributors and channel partners depend on predictable lead times, inventory planning, and support with compliance documentation in each country of operation. Procurement teams value risk reduction and accountability—only achievable through direct connection to the source of production and access to technical evidence on batch control and regulatory alignment.
Every batch leaving our facility reflects in-plant expertise, investment in quality technology, and supply chain alignment driven by the practical needs of downstream industries. From paint and plasticizer synthesis to special chemical blending, n-Butanol buyers benefit from close producer-to-user relationships and genuine control over the supplied material.
From our position as a manufacturer, we see n-Butanol driving numerous core industry processes every day. Most production batches are destined for solvent use in coatings, resins, and inks. The blend of mid-range evaporation, clean odor profile, and solid solvency rank n-Butanol as a mainstay for automotive, furniture, and general industrial coatings. In these sectors, performance depends on stability, flow-out, and film-applicability. Every liter that leaves our tanks passes tight QC reviews, with water content, purity, and aldehyde levels tailored for consistent downstream processing.
On our plant floor, n-Butanol stands out as a building block for esters such as butyl acrylate and butyl acetate. These intermediates play significant roles in adhesives, plasticizers, and performance chemicals. Consistent assay, color, and acid value keep reactors stable at scale. For butyl acrylate, acid and water contaminants can impact polymerization rates and pigment dispersal. With our strict distillation and filtration routines, we maintain the strict values needed for efficient and predictable synthesis. End users in textile and specialty plastics count on us to avoid disruption in their own lines.
To meet demand from the pharmaceutical industry, we provide high-assay n-Butanol free of non-volatile matter and low in carbonyl compounds. Laboratory and pilot customers regularly validate our butanol for use in extractions and synthesis of pharmaceutical intermediates. Similarly, when supplying food-industry partners who compound artificial flavors and fragrances, we ensure compliance with relevant purity standards—both by in-house checks and through independent labs.
Every plant run begins and ends with technical consistency. Our n-Butanol is monitored for purity, typically reaching >99.5% on GC trace, with water content maintained under tight limits. Color in Hazen units, acidity, ester and aldehyde content all fall within controlled targets. Batch slips commonly include density, refractive index, and distillation range data, as these directly impact blending and downstream yield calculations. By checking these critical specs on every lot, we reduce the risk of process jams or off-spec product for our customers.
A factory has no room for disruptions caused by batch inconsistency or contamination. By investing in feedstock integrity, continuous distillation updates, and automated analytics, we retain high reproducibility. Our plant runs 24/7 with an on-site technical crew handling all incident responses promptly, so that delivery schedules and batch continuity never slip. Regular feedback loops with end users steer our product upgrades and point us to areas where extra care is needed—especially for pharma or export markets.
Quality alone isn’t enough without security of supply. We have buffered raw material positions and rigorous production scheduling to handle seasonal order peaks and shipping delays. For long-term partners, our assurance contracts provide guaranteed specs and reserve capacity windows during high-demand periods. We help industrial customers with technical datasheets, certificates of analysis, and direct process troubleshooting whenever production variables arise.
From solvent applications to complex synthesis and sensitive use in pharmaceuticals, we back n-Butanol supply with hands-on manufacturing expertise. Our teams are always available to discuss lot-specific requirements and support process integration for industrial partners.
Handling n-Butanol at an industrial scale requires a straightforward approach, both in logistics and in communication. Years of day-in, day-out production experience have shaped how we set minimum order quantities and decide on packaging. Every guideline comes from the reality of production batch size, safe handling, and transport economics.
n-Butanol is rarely useful in very small batches. Its applications—coatings, butyl acetate and glycol ethers manufacture, plasticizers, and more—demand predictable supply. Our production runs use continuous processes with tight quality control from raw alcohol feedstocks to finished material. Setting a minimum order quantity helps keep lots uniform, and production lines efficient. Typically, we establish a minimum order of one full standard drum, commonly amounting to 165 to 200 kilograms, because smaller volumes create unnecessary handling risk and high overhead, raising cost for everyone. For bulk customers, the benchmark MOQ rises to at least one full ISO tank or road tanker, reflecting efficient dispatch and reduced risk of contamination. The origin of these numbers is experience—filling partial containers often leads to product splits, extended storage, and stability issues.
Environmental, safety, and operational factors drive our choice of packaging. n-Butanol’s flammability and volatility mean we can’t compromise here. Our main route for medium-scale users is the steel drum, with robust closures and UN-certified construction, standard at 165–200 kg per drum. These stack safely and move easily on pallets, satisfying both warehouse and transport regulations.
For larger sites or those with on-site storage capability, we use intermediate bulk containers (IBCs)—usually 1,000-liter high-density polyethylene with steel cages. These strike a balance between cost, capacity, and safety. On the high-volume end, bulk tankers—either road tankers or ISO containers—are the norm, carrying 18 to 24 metric tons per load. Every option deploys vapor-tight closures and traceable seals; we verify drum and IBC integrity before filling and calibrate tanker systems for leak-free, safe delivery. This isn’t generic packaging—it is precise equipment selected through accident investigations, field feedback, and audit results, always aligned with safety codes (such as ADR/RID, IMDG for sea).
Some industries want returnable stainless-steel containers or special anti-static lining. Our site maintains dedicated lines for these requests. The reason is straightforward: each variation impacts clean-out, inspection, and filling scheduling, so clear agreements up front avoid cross-contamination and delays.
Minimum order quantities and standard package sizes cut both waste and cost. Many years ago, multiple drum sizes led to complex storage and leaks, so we reduced the range and standardized. This helps customers manage their on-site stocks with less risk of leftover material. With every delivery, we also provide technical advice on storage and handling, based not on theory but on first-hand plant experience—such as venting needs, compatibility with gaskets, and forklift-safe handling.
Our approach to MOQ and packaging balances factory workflow, plant safety, and the end user’s real process needs. The result: a supply chain that everyone can count on, with the product arriving on time, in consistent condition, every shipment.
The handling of n-Butanol draws a sharp line between routine logistics and a deep responsibility for safety. As the direct producer, our practice goes far beyond what might pass at a distribution warehouse. Each truck, drum, and storage tank involves a careful reading of international standards, like those set by the UN, IMDG Code, and global chemical conventions. The reality of manufacturing at scale means that even one lapse can threaten employees, communities, and the integrity of a supply chain. We treat these regulations as fundamentals, not paperwork hurdles.
International protocols—such as those under UN ADR, ICAO/IATA for air, and IMDG for sea transport—place n-Butanol under a specific UN Number that identifies its risks as a flammable liquid. Every packaging solution we use, whether a steel drum or an IBC, matches both volume and material requirements outlined for Class 3 liquids. Stencil markings, hazard labels, and safety information feature clearly on every container that leaves our facility. These are not optional steps. They are the default minimum for legal movement across borders, and help emergency responders recognize the material instantly.
N-Butanol demands more than space in a warehouse corner. Its flash point sits just above ambient temperatures in some climates, so our indoor storage facilities separate this product from oxidizers and strong acids. Ventilation and temperature management form the backbone of our approach. We select storage tanks made from materials proven to resist not only the liquid but its vapors, reducing risk from both leaks and corrosion.
Fire safety rules command our tank farm design. We keep tanks grounded to eliminate static, install foam-based fire suppression systems, and carefully plan distances to reduce fire propagation risk. Routine training for handling crews is not just a box to check. Ignoring this can endanger people, halt production, and breach regulatory trust. For every country we export to, our compliance officers match our storage arrangements with both local and international standards. We have learned over decades in operation that paperwork and facility checks create a culture where hazards are spotted before they escalate.
Shipping n-Butanol across continents introduces control documents at each border. Our team prepares safety data sheets (SDS) in line with global GHS conventions. Transport documents list UN numbers, packing groups, and emergency instructions. Updating these for every batch is not busywork—it closes any chance of regulatory hold-ups or customs detentions, which could result in unnecessary product exposure or delays down the line. Our business continuity depends on clear, compliant paperwork tied directly to how the product was bottled and shipped.
We invest in our own logistics operations and monitor changes from agencies like IMO, IATA, and the UN. Regulatory shifts are constant: a new packaging rule or updated hazard classification cannot slip through unchecked. By participating in industry groups and safety forums, we ensure that our logistical habits reflect the real risks, not outdated playbooks. Each compliance step represents an investment in operational stability, customer trust, and worker safety—undermined only by complacency, never by regulatory “red tape.”
We view n-Butanol as a valuable industrial tool that deserves thorough stewardship from production line to end-user facility. Mastery of transportation and storage laws is woven into our technical and commercial teams, delivering not just product, but reliability.
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
