| Names | |
|---|---|
| Preferred IUPAC name | butan-1-ol |
| Other names | n-Butyl alcohol 1-Butanol Butan-1-ol Butyl alcohol Butanol |
| Pronunciation | /ɛnˈbjuː.tə.nɒl/ |
| Identifiers | |
| CAS Number | 71-36-3 |
| Beilstein Reference | 1720229 |
| ChEBI | CHEBI:28885 |
| ChEMBL | CHEMBL14362 |
| ChemSpider | 0354618 |
| DrugBank | DB02130 |
| ECHA InfoCard | ECHA InfoCard: 027-003-00-2 |
| EC Number | 200-751-6 |
| Gmelin Reference | 60797 |
| KEGG | C00474 |
| MeSH | D001070 |
| PubChem CID | 263 |
| RTECS number | EO1400000 |
| UNII | Q3K3TY3V6P |
| UN number | UN1120 |
| CompTox Dashboard (EPA) | DTXSID4020938 |
| Properties | |
| Chemical formula | C4H10O |
| Molar mass | 74.12 g/mol |
| Appearance | Clear, colorless liquid with a characteristic alcoholic odor. |
| Odor | Alcohol-like; banana-like |
| 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) | 16.0 |
| Basicity (pKb) | 15.2 |
| Magnetic susceptibility (χ) | -48.4×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.3993 |
| Viscosity | 2.95 mPa·s (at 20 °C) |
| Dipole moment | 2.85 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 288.0 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | –327.5 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | –2670 kJ·mol⁻¹ |
| Pharmacology | |
| ATC code | R02AD03 |
| Hazards | |
| GHS labelling | GHS02, GHS07 |
| Pictograms | GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H226, H302, H315, H318, H335, H336 |
| Precautionary statements | P210, P261, P271, P280, P301+P312, P303+P361+P353, P305+P351+P338, P312, P337+P313, P370+P378, P403+P233, P501 |
| NFPA 704 (fire diamond) | 2-3-0 |
| 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 | 1160 |
| PEL (Permissible) | PEL: 100 ppm (300 mg/m³) |
| REL (Recommended) | 100 |
| IDLH (Immediate danger) | 1400 ppm |
| Related compounds | |
| Related compounds | Isobutanol tert-Butanol sec-Butanol Methanol Ethanol Propanol |
| Product Identification | Details |
|---|---|
| Product Name | n-Butanol |
| IUPAC Name | Butan-1-ol |
| Chemical Formula | C4H10O |
| Synonyms & Trade Names | 1-Butanol, n-Butyl alcohol, normal Butanol |
| CAS Number | 71-36-3 |
| HS Code & Customs Classification | 29051300 (Dependent on regional customs code implementation; refer to local regulations for confirmation on import duties and documentation requirements.) |
In industrial production, n-Butanol typically results from the hydroformylation of propylene (oxo process) followed by hydrogenation. Alternative feedstocks or process routes can shift impurity profiles and the approach to purification. Key impurities often correlate with feedstock quality and reactor control; aldehydes and isomers like sec-butanol may appear, requiring tailored distillation parameters.
Raw material purity matters for both process yield and consistent downstream quality, especially for application-sensitive markets such as coatings, resins, and pharmaceutical excipients. For these, batch segregation and traceability systems support specification control. In our process, final batch quality often reflects both upstream process stability and the robustness of distillation.
Product grades vary. For non-critical bulk uses in solvents or extractants, technical-grade butanol may tolerate higher trace impurity levels. Precise applications such as excipient or electronic chemical production demand selectivity on organic residuals and lighter alcohols. Release assessment depends on both internal process controls—such as gas chromatography, moisture quantitation, and organoleptic checks—and documented agreements with downstream formulators.
For storage and onward transport, composition consistency is essential. Low water and low peroxide content help meet shelf life needs for sensitive formulations. Batch label data trace back to production vessels and shipment logs, ensuring both regulatory and end-user documentation meets traceability standards for the intended region.
Industrial n-butanol typically presents as a colorless liquid with a characteristic alcoholic odor. Visual clarity and absence of suspended matter are monitored batch by batch, as haze or coloration can indicate contamination or side reaction byproducts. Melting point, boiling point, flash point, and density may shift within a narrow range, mainly depending on minor impurity content or water uptake during storage. The product’s appearance is one of the initial indicators of process performance and tank hygiene in plant operations.
Plant-scale n-butanol holds chemical stability under controlled conditions. Oxidation and esterification pose the most relevant risks in bulk storage, particularly when exposed to air or mixed-contaminants. Trace aldehyde formation and possible peroxide build-up necessitate in-process checks, especially for high-purity or electronic-grade orders.
n-Butanol shows partial miscibility with water; solubility depends on temperature and is composition-sensitive. For industrial use, solution concentrations, mixing order, and agitation control affect final process outcomes. Formulators inspect solubility visually and analytically due to phase separation risks, especially in multi-solvent applications.
n-Butanol grades are typically defined for chemical synthesis, coatings, extraction, pharma, or food-contact applications. Targets for purity, moisture, and volatile content are grade- and sector-specific. We review test parameters such as GC purity, water content (via Karl Fischer), and color (Hazen/APHA) before batch release.
Profiled impurities arise from side reactions, incomplete separation, or residual catalyst carryover. Normal impurity screens include isobutanol, aldehydes, esters, and trace metals. Acceptable levels are set by internal quality protocols or specific customer needs, and must be declared for regulated or high-purity applications.
Typical batch controls use gas chromatography, titration, and refractive index measurement according to internationally recognized methods or customer-specific standards. Our testing adapts to reporting and certification requirements for each shipment.
Our manufacturing relies on petrochemical feedstocks (propylene or syngas) or renewable bio-based options, chosen based on cost, regional availability, and supply chain stability. Traceability of incoming raw materials is maintained to manage cross-contaminant and impurity sources.
Industrial synthesis of n-butanol mostly uses the oxo process, converting propylene to butyraldehyde by hydroformylation, then hydrogenating butyraldehyde to n-butanol. Route selection affects co-products and impurity burden (such as isobutanol, 2-ethylhexanol). Customers with sustainability goals may specify bio-based or CO2-reduced process routes.
Critical process control points include catalyst monitoring, reaction temperature, and inert gas handling. Purification typically involves multi-stage distillation, phase separation, and drying steps. Batch consistency depends on continuous monitoring of key quality indicators—purity, water, and volatile residue.
Analytical verification is performed on every production lot. The final release criteria references agreed specifications, with off-spec lots held for reprocessing or blending. Quality teams investigate trends or deviations immediately to prevent escalation in downstream processes.
n-Butanol undergoes oxidation, esterification, etherification, and substitution reactions. These are deployed in house for derivative manufacturing or in formulations supplied to external plants. Customers may request detailed reactivity data for process design and scale-up.
Oxidation uses metal catalysts under controlled temperature and oxygen dosing. Esterifications rely on acid catalysis, requiring post-reaction neutralization and washing. Downstream solvent use and temperature profiles are customized for product purity or selectivity requirements.
The product serves as a base for butyl acrylate, butyl acetate, and plasticizer synthesis. Modification protocols are tailored to end-use, with special attention to catalyst choice and impurity impact on finished goods.
Temperature is regulated in bulk tanks and drums to prevent volatilization and condensation. Humidity control matters in hygroscopic environments, with tanks blanketed under inert gas in sensitive applications. More stringent lighting and oxygen control measures are enforced for high-purity or pharmaceutical supplies.
Containers include coated drums, stainless steel IBCs, or dedicated bulk tanks, depending on volume and contamination risk. Steel, aluminum, and HDPE demonstrate compatibility, but gasket and seal material selection must account for softening or permeation.
Shelf life remains grade-dependent, with monitoring for color change, clouding, or organic acid odor serving as degradation indicators. Material reported to have exceeded typical shelf time undergoes further analytical testing before allocation to sensitive applications.
n-Butanol falls under hazardous classification regarding flammability, acute toxicity, and irritancy. Classification can vary with concentration and national implementation of GHS.
Handling requires mitigation of skin/eye contact, inhalation, and ignition sources. Plant teams follow lockout, static elimination, and PPE protocols, especially for pressurized or open-system transfer.
Acute and chronic exposure are controlled via engineering measures. Occupational exposure limits refer to regulated standards, which diverge by jurisdiction and facility practice. Spillage protocols and monitor programs prove essential for loading/unloading operations.
Safety teams enforce handling limits and regular workplace monitoring for air concentration and potential skin exposure. All new production team members receive in-depth training regarding n-butanol properties, emergency measures, and incident documentation requirements.
Plant output for n-Butanol aligns closely with the local and imported availability of syngas and propylene feedstocks. Most industrial facilities rely on the oxo alcohol process, driven by propylene hydroformylation coupled with hydrogen. Capacity fluctuations follow the balance between planned maintenance outages, regional propane dehydrogenation margins, and downstream consumption patterns in coatings, plastics, and solvents. In regions with strong basic chemical integration, short supply gaps arise only during catalyst changeouts or feedstock disruptions, not from process throughput constraints.
Standard production lead time generally follows batch cycle and tank turnover frequency. Practically, this translates to lead times ranging from immediate shipment ex-stock to a few weeks, depending upon finished stock rotation and required product certification (industrial, pharmaceutical, or electronic grade). MOQ varies with package size and grade requirements; drum packaging supports smaller MOQs, while ISO tank and bulk ISO container shipments favor full-lot stipulation due to loading and cleaning economics.
Packaging strictly follows both regional transport regulations and customer application specifications. Industrial grades most commonly ship in UN-approved steel drums or IBCs. Bulk users or blenders demand dedicated tank car or ISO container movements, necessitating proof of cleaning and prior cargo compatibility. Higher purity or more sensitive end uses may require inert gas blanketing or tamper-evident seals according to customer QA protocols.
Export shipments comply with IMDG (sea) and ADR (land) requirements, with document packs supporting MSDS, Certificate of Analysis, and batch traceability. Payment terms reflect customer credit profiles, history, and order value; standard practice ranges from 30 to 60 days net, with Letter of Credit preferred for new or offshore counterparties. Completion of new supply agreements often depends on customer’s audit or trial sample approval of plant documentation and product batch samples.
Feedstock price accounts for the majority of n-Butanol’s variable manufacturing cost. Propylene, sourced as refinery or steam cracker off-gas, shows periodic price swings driven by crude oil, naphtha, or propane fundamentals. Energy costs (hydrogen supply and steam) represent significant second-tier influences. Elevated market volatility in either feedstock or natural gas tightens or widens manufacturing spreads on short notice. Unplanned energy shortages or feedstock rationing cause spot price spikes, especially in regions lacking backward integration.
Price differences between n-Butanol grades track the cost and complexity of downstream purification steps, QA release tests, and packaging upgrades. Pharmaceutical, food, or electronics grade n-Butanol commands higher premiums, reflecting multi-step distillation, lower throughput per batch, and release testing for tighter impurity control (e.g., metals, organics, residual solvents). Cost structure also shifts upward with customer-specified documentation or traceability (such as batch-release CoAs or third-party analytic confirmation).
Raw material market behavior remains sensitive to refinery and petrochemical cracker outages, shipment delays, and regional policy-driven incentive changes. Sudden spikes in propylene from unplanned plant shutdowns or upstream logistics bottlenecks impact Butanol contracts within days. Energy cost surges and regulatory changes on emissions, safety standards, or permitted feedstock sources shift overall plant operating cost, sometimes restricting spot market liquidity for high-purity or specialty grades.
Grade-specific pricing reflects the degree of purification, certification, and contamination control built into the production and packaging cycle. Higher-purity batches follow additional refining and inert-gas transfer procedures. Application-sensitive grades (e.g., electronic, pharmaceutical) bear incremental analytical costs and require documentation bundles or specialized packaging. Customers requiring certified food-contact or pharmaceutical compliance incur higher QA/validation surcharges. Packaging (drum vs. bulk iso container) also drives shipping cost differentials, especially for small-batch or remote delivery.
Overall balance in the global n-Butanol market tightly couples to polyvinyl butyral, butyl acrylate, and glycol ether demand. Asia-Pacific (particularly China and India) constitutes the main consumption and incremental capacity growth hub, underpinned by coatings and construction demand shifts. North America and Western Europe remain net exporters at the base-grade level, though specialty and high-purity imports from Japan and the EU fill local shortfall in precision applications.
Directional expectations for n-Butanol into 2026 rest on crude oil and propylene value recovery, cyclical global coatings consumption, and ongoing regional rationalization of older, higher-emission units. Stable or gradually rising prices are forecast across most grades, barring a major feedstock oversupply or economic shock. High-purity and specialty segments may see sharper upward pricing, as post-pandemic QA requirements and export documentation costs rise.
Commentary draws on publicly consolidated production figures, proprietary Fe-to-propylene feedstock indices, regional customs tariff data, and direct customer-offtake contract histories. No speculative or unverifiable sources inform this trend analysis.
Recent shifts include regional feedstock availability constraints impacting prompt shipments and refinery shutdown schedules moving downstream spot prices. New capacity introductions in Asia adjusted spot market liquidity for industrial grade; environmental permitting delays caused smaller output interruptions in localized markets.
Increasing attention falls on trace low-level impurities, especially for food, pharma, and personal care applications. Manufacturers adjust QA protocols to preemptively align with emerging REACH updates, California Proposition 65 amendments, and local food-contact standards. Documentation and procedures expand around new and extended safety data reporting requirements.
Plants reinforce raw material origin traceability to buffer against regulatory reclassification risk and compliance delays on key downstream applications. Upstream and energy procurement contracts gain flexibility clauses for delivery disruption, improving feedback cycles with bulk clients. Additional investment flows into process analytics and impurity tracking, strengthening both process yield and customer assurance.
n-Butanol serves core roles in multiple sectors due to its properties as a medium-boiling alcohol, moderate solvent power, and balanced volatility. Production teams note that downstream processors—such as coatings formulators, plasticizer manufacturers, extractive industries, and specialty chemical blenders—rely on distinct physical behaviors of n-Butanol grades to align with targeted outcomes.
| Industry Use | Typical Grade Required | Critical Parameters |
|---|---|---|
| Paint & Coating Solvent | Industrial / High-Purity (A Grade) | Water content, aldehyde residue, color index |
| Plasticizer feedstock | Plasticizer/Technical Grade | Acidity, ketone content, ester impurities |
| Extraction & Process Chemicals | Solvent/Technical Grade | Key impurity profile, minor byproduct residue |
| Chemical Intermediates | Reagent Grade | Synthetic route compatibility, peroxide content |
| Specialty Applications | Custom Specification | Tailored to customer-specific requirements |
Quality control labs watch for shifts in water, aldehyde, acetic acid, and iron levels that track closely with the production route and tank age. Where high-purity grades support electronic fluids or pharmaceutical syntheses, batch chromatographic checks are routine. Technical grades face wider impurity ranges and are assigned according to production campaign, feedstock origin, and batch scheduling.
Manufacturing support teams must clarify end-use: solvent, feedstock, extraction, or custom chemical synthesis. This determines the main grade and sets a starting point for downstream process compatibility.
Certain consumer or export markets enforce purity or contaminant thresholds. Compliance checks include country-specific purity declarations, restricted substance lists, and environmental exposure controls. Laboratories flag release batches against these regulatory targets prior to shipment.
Packing lines and QC teams match the grade to the downstream needs. Water, organic trace levels, or non-volatile residue values can be narrowed by choice of feedstock, distillation depth, or in-line filtration. Higher grades require added distillation or post-processing, which affects production lead time and cost structure.
Production planning reviews forecasted volumes against campaign sizes, which informs whether multi-ton bulk deliveries or specialty small lots are feasible. Lower-impurity grades carry higher conversion and maintenance cost. Strategic users often blend grades to meet application needs at scale.
Pilot runs using tank or drum samples validate performance in process conditions. Quality assurance teams monitor for batch-scale deviations, actual downstream reactivity, and any appearance or odor shifts after transit. Feedback is relayed to plant operations for targeted improvements in run consistency.
Quality assurance in n-butanol production relies on adherence to recognized management frameworks. Our production sites operate under ISO 9001-certified quality systems, with implementation focused on traceability, process discipline, and non-conforming batch segregation. Internal audits are conducted according to parameters outlined in the certification, focusing on ongoing staff training, materials handling, and batch record integrity.
n-Butanol destined for different market segments may attract various product-specific confirmations. For industrial, coatings, or pharmaceutical excipient uses, we work to meet specific customer and regulatory needs according to region. Application-sensitive grades such as those for pharmaceutical processing or food contact face routine review by compliance teams for relevant registrations or statements, subject to application requirements. Conformity with regional chemical registration (such as REACH or TSCA) and downstream customer audits form key parts of certifying batch suitability. Any additional customer-requested certifications, including non-standard impurity controls, require explicit technical alignment at the sampling and contract stage.
We provide full batch documentation on release, including certificate of analysis (COA), certificate of origin, safety data sheets (SDS), and transport statements aligned to GHS conventions as applicable to the destination market. COA details cover analytical results for core quality indices according to the final specification agreed with the customer. For application- or region-dependent claims, reporting focuses on parameters relevant to intended end use. Shelf life or retest periods, where required, are established based on ongoing stability data or collaborative definition with downstream users.
Securing a reliable source of n-butanol hinges on clarity across the supply chain. Our main plants operate under long-term feedstock contracts to control input quality and cost, which protects against volatility during procurement cycles. Flexible business arrangements, including just-in-time (JIT) warehousing, buffer stock agreements, and fixed-volume call-offs, can be discussed directly with production planning teams based on your forecast profile or project needs.
Our production strategy maximizes batch-to-batch consistency and mitigates downtime risk. Plants run on continuous processes for core grades, reducing the likelihood of production interruptions. Alternate process routes or multi-plant redundancy are deployed for strategic customers with higher volume or tighter release frequency needs. Supply stability depends on consistent utility availability and long-term catalyst management; scheduling and maintenance coordination form the backbone of reliable performance.
Sample requests follow a controlled internal routing. After technical and business alignment, samples are drawn from scheduled production lots, traced by batch code, and distributed alongside relevant COA and handling documentation. For critical applications, expanded analytical data or direct technical interface can be arranged to clarify grade alignment or address specific impurity monitoring concerns.
Procurement flexibility covers more than just logistics. Contractual models include firm volume, rolling forecast, and flexible tonnage take-off with defined minimums, tailored to demand patterns and inventory tolerance. Supply models can incorporate regional blending, local hub delivery via partner terminals, and alternate grading or packaging formats based on end-use sector. Pricing discussions transparently reference feedstock benchmarks and fluctuation risk is shared through indexed formulas or hedging arrangements based on mutual agreement. Technical aftersales support is available for customer process adaptation, storage practices, and troubleshooting to ensure downstream productivity matches the delivered material profile.
Technical teams across our operations focus on refining both the oxo-process and biobased production of n-butanol. Most industrial n-butanol still relies on the hydroformylation route using propylene, but several R&D groups emphasize reducing energy intensity during aldehyde hydrogenation and separating co-products like isobutanol. Bio-derived n-butanol from fermentation of renewable feedstocks continues to attract interest, as customers in coatings, adhesives, and upstream resin manufacture probe options to cut fossil dependencies.
Paint, coatings, and brake fluid formulators remain the largest demand centers. Recent attention from plasticizer producers and those exploring sustainable aviation fuels motivates process engineers to assess how purity and trace oxygenates affect reaction selectivity downstream. R&D projects evaluate n-butanol use as a high-octane blending component and solvent for advanced polymerizations, with researchers tracking how molecular purity, residual aldehyde content, and water concentration shift performance in these novel environments.
Water removal during n-butanol isolation is a persistent challenge, since azeotrope formation limits conventional distillation gains. Teams assess membrane and pervaporation approaches to reduce downstream drying loads. Another challenge involves precise control of C4 isomer distribution; side reactions generating isobutanol or residual aldehydes become problematic for end users sensitive to odor or polymerization initiation. Recent advances in catalyst lifetime extension and process diagnostics have reduced batch-to-batch variability, benefiting quality control during scale-up.
Downstream demand from the automotive, coatings, and construction sectors guides capacity planning. Market analysts forecast robust orders from regions with expanding architectural coatings output. Biobased grades advance slowly due to scale limitations, but pilot initiatives in Europe and North America will spur select customer offtakes, especially where bio-attribution or LCA certification is required. Volatility in propylene pricing and utility energy costs will impact profitability and drive continued process optimization.
Plant upgrades focus on thermal integration, waste minimization, and automating control systems to track aldehyde and water levels in real time. Some customers request tailored delivery programs with specific impurity cutoffs, so refining process flexibility—especially in final purification—remains a key technical direction. The push for continuous processing in new plants could reduce cycle times and tighten product grade bands. Digital monitoring of reaction exotherms and online GC analysis help manage off-spec events before they impact lot release.
The shift toward greener chemistry in n-butanol involves both raw material choices and emissions management. Bioprocess engineers work with strain developers to enable higher yields and lower fermentation byproduct levels from agricultural feedstocks. Operations teams focus on minimizing fugitive VOC emissions and improving solvent recovery. Trace metal management, especially in catalyst recovery, has become a routine point in internal sustainability audits. Lifecycle assessments highlight how raw material traceability and spent catalyst recycling contribute to customer-facing ESG reports.
Customers regularly approach our technical team about grade selection based on downstream formulation environments or compatibility with co-solvents, resin binders, or specific catalysts. Our QC laboratory provides guidance by sharing grade-specific impurity profiles, typical water content, and temperature sensitivity during transfer and storage. Engineers discuss the impact of storage tank materials and vapor management on maintaining batch characteristics, especially for sensitive electronic and specialty resin producers.
Application engineers join on-site trials for implementing new grades or shifting feed routes. Service includes review of blending protocols, handling advice for minimizing water pickup, and advice on retrofitting existing process lines to accommodate alternate feedstocks. Recent support cases involved troubleshooting film formation issues in architectural coatings and addressing unexpected odor carryover in high-purity resin applications. Teams relay findings back to R&D for continuous process adjustment.
Our after-sales protocol covers technical investigation of off-spec batches, support with analytical data interpretation, and guidance for safe unloading and handling in both ISO-tank and bulk trailer formats. Repeat customers access batch history for tracking impurity trends or investigating process changes downstream. Continuous dialogue between production, quality control, and the technical support desk ensures rapid response to queries regarding documentation, regulatory changes, or application-specific challenges.
Producing n-Butanol in-house allows for close control over every stage of manufacturing, from raw material selection through final packaging. The production process centers around continuous monitoring and in-process analysis, which delivers consistent batches across bulk orders. This structured oversight minimizes variability, creating dependable quality even as order sizes scale. Every load receives full traceability, backed by real-world production records and direct access to plant teams.
n-Butanol applies across coatings, specialty chemicals, and plastics production. Paint and coatings formulators prefer this alcohol for moderate evaporation and blending in solvent systems used on automotive lines and industrial asset protection. In plasticizer manufacturing, n-Butanol’s performance enables downstream esterification, feeding into PVC processing and flexible polymers. Adhesive and ink plants gain a balanced volatility curve and manage viscosity in specialized formulations. These applications depend on a stable feedstock with predictable evaporation rates, low water content, and a consistent odour profile.
Process parameters run within calibrated limits throughout. Batch documentation details each production run, with every tank and railcar traced back through intermediate lots. Direct oversight of distillation, dehydration, and purification safeguards key analytical results like purity, acidity, and moisture, removing the risk of off-spec deliveries. Quality staff inspect every outgoing batch, focusing on both chemical composition and physical handling characteristics such as clarity and packaging integrity. Finished product samples are kept on file for ongoing comparison and claims resolution.
n-Butanol leaves the plant in drums, IBCs, and dedicated bulk tankers built for industrial handling. Automated filling lines use sealed, vapor-controlled systems to ensure purity from production floor to end user. Bulk rail and ISO tank shipments benefit from specialized loading arms, pressure and temperature management, and lot-number labeling for every consignment. For buyers with onsite storage, refill programs coordinate regular deliveries according to forecast usage and minimize transfer exposures. Export and domestic supply teams coordinate scheduling directly from the plant, providing documentation and logistical support to simplify regulatory and customs clearance.
Plant chemists and process engineers handle inquiries on chemical compatibility, solvent blends, and use in engineered systems. Support covers both ongoing use and new project adoption, supported by test data and real-world process experience. Application teams assist with formulation adjustments to match performance criteria and respond promptly to issues like drum residue, unexpected side reactions, or temperature stability. This direct technical backing helps buyers optimize end-product performance and minimize changeover costs.
Direct sourcing from an established producer reduces risk tied to raw material interruptions and batch variation. Production transparency, end-to-end supply assurance, and robust quality traceability keep operations running with fewer surprises. By managing every link in the supply chain, from plant floor to packaging dock, buyers secure a lower total landed cost and avoid the hidden delays and quality issues that arise from fragmented sourcing. These systematic controls, along with scalable output, position our facility as a reliable partner for manufacturers, distributors, and procurement professionals looking for long-term value in critical raw materials.
As a producer of industrial-grade n-Butanol, we put significant emphasis on maintaining clarity around purity standards because our customers rely on tight specifications to keep production lines running smoothly. Purity standards impact everything from downstream processing to environmental permitting, so we take this aspect of manufacturing seriously. Over the years, we have noticed that end users in coatings, plastics, and chemical synthesis pay careful attention to the fine details of each batch’s analysis. Even a modest deviation in product quality can cause headaches for formulators and plant operators, so clear communication around what defines "industrial-grade" is essential.
In our experience, the usual benchmark for industrial-grade n-Butanol sits above 99.5% by weight. This means the product contains n-Butanol at levels normally exceeding 995 grams per kilogram. Users in resins, plastics, and coating industries require this threshold to reduce the risk of side reactions, unwanted by-products, or issues with product clarity. Many industrial consumers track key impurities such as isobutanol, aldehydes, methanol, and water content. These matter not only for process yields but also for workplace safety and emissions compliance. Our process utilizes continuous distillation, allowing us to maintain a robust separation efficiency and stable output that consistently meets or exceeds this specification.
The market sometimes refers to "technical grade" when talking about n-Butanol, but we see the distinction as more about application context than analytical results. For industries less sensitive to trace impurities—such as raw material blending for lubricants or simple cleaning blends—the minimum accepted purity might be a few decimals lower. In these applications, slight variances do not compromise end product quality, though we advise careful review of all impurity classes for any process with tight downstream requirements. Customers in more demanding sectors, such as pharmaceuticals or semiconductors, often require specialty grades or additional purification steps, which move the purity bar even higher.
Pursuing consistent output is not only a matter of meeting a headline number. Ongoing investment in real-time analytical controls—such as gas chromatography and Karl Fischer titration—forms the backbone of our quality assurance. These methods let us identify trends early, long before an impurity reaches a problematic level. Isobutanol, for instance, often arises from process variability; we keep this below 0.2% where possible, since even small fluctuations can affect solubility or reactivity for certain customers. Water content is also tightly monitored, rarely exceeding 0.1%, since excess water leads to haze formation or poor compatibility in end-use resins. By analyzing each lot in-house, we give our customers confidence and traceability for every delivery.
Feedback from our partners shapes the way we refine our process. If a downstream requirement grows more stringent, we have the ability to tighten cut points or double-pass distillate streams. When regulatory expectations shift toward lower allowable residues or stricter emissions, we optimize for lower aldehyde content or minimize process-derived contaminants. We can provide detailed specifications, including individual impurity profiles, upon request for approval in specific applications.
Ensuring a predictable, high-purity n-Butanol shipment is not just about hitting a published number but about supporting whole production ecosystems. Our technical and production teams remain available to troubleshoot unique process challenges or meet new analytical expectations as they arise. In our approach as a direct manufacturer, we treat purity targets as living commitments, evolving in pace with the industries we serve.
As n-Butanol producers with decades of experience on the manufacturing floor, we know inquiries about minimum order quantity and lead time are not just procedural—real planning and purchasing decisions ride on these details. The n-Butanol market often shifts with changes in downstream demand, and our production facilities are structured to meet industrial-scale needs while supporting operational consistency across major applications.
We’ve built our production infrastructure around bulk output and rigorous consistency. Our typical minimum order quantity for n-Butanol sits at 16 metric tons, equivalent to a full isotank or bulk road tanker. This scale helps us balance efficient plant utilization with practical logistics. Less than this threshold, transport and container charges often overshadow material value, and bulk customers consistently tell us predictable, large-scale deliveries are fundamental to their own supply chain stability.
We integrate lead time directly with our batch scheduling, cargo preparation, and shipping lanes. Lead time for n-Butanol procurement generally spans from one week up to three weeks, based on plant inventory, current production cycle, and outbound delivery schedules. When we run continuous lines, orders placed in advance line up with slotting across dedicated storage tanks, ensuring quality assurance protocols—our in-house lab tests every batch before shipment leaves our gates. Large scheduled shutdowns or maintenance windows do occur, especially for planned equipment upgrades or plant inspections. Advance purchase planning supports seamless sourcing from ongoing production without risk of unexpected disruption.
Our technical and commercial teams collaborate from the inquiry stage to bring early visibility to shipment timelines. Any request crossing into non-standard packaging (like totes or drums) or urgent delivery timelines will trigger coordination between factory management and transportation teams. Some industries, such as coatings, plastics, or agrochemicals, require just-in-time fulfillment for new product launches, and we've built direct tracking into our order management system to give customers up-to-date forecasts.
From a quality assurance standpoint, every n-Butanol order is supported by robust process controls. Real-time data from our packed column distillation, impurity load tracking, and in-line moisture checks reduce downstream quality complaints. We supply full lot certificates with each shipment, and technical support is on standby for any customer query extending to formulation or application advice. Shipping reliability directly ties to our reputation—we invest in multi-modal transport links and maintain long-term logistics partnerships, which helps protect supply even when port congestion or seasonal trucking shortages crop up.
Order volume and scheduling questions often signal expanding projects or new lines for the customer. Our production team reviews planned plant expansions and raw material inputs monthly, aligning short-term operational execution to longer-term demand trends. Direct communication—plant to plant—saves everyone time and hard cost, reducing handoffs and risks of message loss that so often frustrate procurement teams.
In n-Butanol supply, the reality is simple: flow is everything. Reliable stock means better plant uptime for our customers and fewer costly halts in the field. We remain transparent about the real-world constraints and the options available, supporting sustainable, predictable growth for buyers securing n-Butanol direct from source.
n-Butanol remains a major solvent and chemical intermediate, but shipping and storing this alcohol brings strict expectations. In our experience as a direct manufacturer supplying industrial-scale volumes, a keen awareness of chemical regulations influences daily operations—especially as safety and compliance authorities keep a close watch on flammable liquids like n-Butanol.
Several frameworks shape our approach before a drum even leaves our filling line. n-Butanol falls under the UN 1120 code as a Class 3 flammable liquid. Any container destined for road, rail, ocean, or air transport must carry the required labeling and shipping documentation. Our logistics team follows Department of Transportation (DOT) hazardous material rules, and aligns every bulk or drum load with International Maritime Dangerous Goods (IMDG) and International Air Transport Association (IATA) standards when shipping abroad.
From an operational side, secure handling starts with packaging. We fill n-Butanol in tightly sealed steel drums or approved intermediate bulk containers. Internal quality audits double-check container integrity and cap sealing. Each package receives a strong UN-approved marking. Nothing ships loose or in open-top vessels. Our dedicated storage tanks on-site include continuous vapor monitoring and nitrogen-blanket systems to cut off potential ignition sources. Each storage area meets minimum regulatory setback distances from potential hazards.
Storage temperatures matter—running too hot boosts evaporation and can elevate vapor pressure. We design our facilities for moderate ambient temperatures with automatic ventilation controls. Nobody can ignore the flash point and explosion limits—n-Butanol vapor concentrations kept out of these ranges lessen risks for workers and first responders alike. Facilities using n-Butanol must implement grounding and bonding to prevent static electricity buildup. These are not vague recommendations—our team treats them as non-negotiable conditions of safe storage and transfer.
Legal obligations sit alongside practical experience. By following the rules consistent with OSHA’s Process Safety Management and EPA’s Clean Air Act rules on volatile organic compounds, we reduce our liability exposure and demonstrate respect for the communities near our plants and warehouses. Physical barriers, restricted access control, and ongoing staff safety training form part of our regular operations, not just for audits but as a long-term investment in safety.
In the rare circumstance of a spill or accidental release, our on-site response matches emergency planning: containment kits at every staging area, routine drills, and quick neutralization methods based on the chemical properties of n-Butanol. For road or rail logistics, our preferred hauliers must carry the right HAZMAT training certification. We only use equipment and containers previously rated for chemical compatibility, since cross-contamination is unacceptable in our business.
We constantly review country-specific regulations, since authorities sometimes update permitted packaging types or designate new restrictions based on port or border crossings. By maintaining close relationships with compliance experts and regulatory agencies, our team reacts quickly to these changes, updating our protocols before bottlenecks or fines can disrupt supply.
Manufacturing n-Butanol responsibly means little unless every shipment leaves the gate with safety designed and proven at every step. Regulatory discipline, technical safeguards, and experience-driven controls all serve one purpose: protecting customers, workers, and the global supply chain from avoidable risks in handling a vital industrial chemical.
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
