| Names | |
|---|---|
| Preferred IUPAC name | ethanenitrile |
| Other names | Methyl cyanide Ethanenitrile Cyanoethane |
| Pronunciation | /ˌæs.ɪˈtoʊ.nəˌtraɪl/ |
| Identifiers | |
| CAS Number | 75-05-8 |
| Beilstein Reference | 605272 |
| ChEBI | CHEBI:28783 |
| ChEMBL | CHEMBL # string CHEMBL421 |
| ChemSpider | 0009171 |
| DrugBank | DB01981 |
| ECHA InfoCard | 03d6476d-e3a9-4f07-9c61-5b14a1ba5c03 |
| EC Number | 200-835-2 |
| Gmelin Reference | 970 |
| KEGG | C01342 |
| MeSH | D000197 |
| PubChem CID | 6342 |
| RTECS number | RN0450000 |
| UNII | 40B46JA27L |
| UN number | UN1648 |
| Properties | |
| Chemical formula | C2H3N |
| Molar mass | 41.05 g/mol |
| Appearance | Colorless, transparent liquid |
| Odor | Ethereal |
| Density | 0.786 g/cm³ |
| Solubility in water | Miscible |
| log P | \-0.34 |
| Vapor pressure | 84 mmHg (20°C) |
| Acidity (pKa) | 25 |
| Basicity (pKb) | pKb = 24.2 |
| Magnetic susceptibility (χ) | -38.0×10⁻⁶ cm³/mol |
| Refractive index (nD) | 1.344 |
| Viscosity | 0.37 cP (20°C) |
| Dipole moment | 3.92 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 160.7 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -45.9 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -333.3 kJ·mol⁻¹ |
| Pharmacology | |
| ATC code | V07AB04 |
| Hazards | |
| GHS labelling | GHS02, GHS07, GHS09 |
| Pictograms | GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225, H302, H312, H319, H332 |
| Precautionary statements | P210, P261, P273, P280, P301+P310, P303+P361+P353, P304+P340, P312, P330, P370+P378, P403+P233, P501 |
| NFPA 704 (fire diamond) | ACN: 2-3-2 |
| Flash point | 2 °C |
| Autoignition temperature | 525°C |
| Explosive limits | Explosive limits of Acetonitrile (ACN): "4% - 17% (in air) |
| Lethal dose or concentration | LD₅₀ (oral, rat): 2,730 mg/kg |
| LD50 (median dose) | LD50 (median dose): 2730 mg/kg (rat, oral) |
| NIOSH | K0846 |
| PEL (Permissible) | 40 ppm |
| REL (Recommended) | 0.30 ppm |
| IDLH (Immediate danger) | 80 ppm |
| Category | Technical Commentary |
|---|---|
| Product Name & IUPAC Name |
Acetonitrile, known systematically as ethanenitrile in IUPAC nomenclature, is a critical polar aprotic solvent in industrial synthesis and downstream processing. Production teams reference its IUPAC naming in technical certifications and regulatory submissions, especially for export-controlled documentation. End users in pharmaceuticals and analytical sectors often specify the IUPAC name when ordering for applications requiring traceability and purity assurance. |
| Chemical Formula |
CH3CN forms the basis for QC identity confirmation. In upstream manufacturing, raw material trace verification focuses on carbon-nitrogen bonding integrity, which is crucial for avoiding side-product formation during distillation and rectification. High-throughput analytical protocols utilize formula-based markers for batch acceptance and cross-process consistency checks. |
| Synonyms & Trade Names |
Operational documentation and batch sampling reports often reference alternative names such as methyl cyanide or cyanomethane, reflecting historical naming conventions in plant communications and shipping records. Bulk storage and transfer operations sometimes adopt legacy trade designations, especially in older facilities or for stakeholders with region-specific terminology preferences. |
| HS Code & Customs Classification |
HS Code 29269000 governs international shipment compliance for acetonitrile. QC and export logistics teams apply this classification to align with customs reporting, tax evaluation, and UN regulatory declarations. Port clearance procedures often hinge on clear documentation of tariff codes to ensure the correct duty assessment and avoid customs delays or rejections. Updates to customs legislation in primary export markets can drive changes in labeling and shipping protocol at the production site level. |
In large-scale production, acetonitrile appears as a clear, colorless liquid with a mild, ether-like odor, though odor may vary in intensity depending on residual impurities. Melting and boiling points shift based on purity and water content. Industrial streams can display minor turbidity if trace water or polymeric residues are not carefully managed during distillation or storage transfers. Strict control over water ingress becomes critical, particularly for high-purity or LC/MS grades, due to significant effects on solubility and chromatographic consistency.
Density is grade-dependent; low-water or solvent grades show typical laboratory reference values, while recycled or technical grades may trend slightly higher if residual heavies remain. Melting and boiling points provide insight into impurity load or cross-contamination from adjacent manufacturing runs. Flash point is monitored throughout production primarily for safe bulk storage design and transport.
Acetonitrile remains stable under tightly controlled storage, yet peroxide formation or formation of trace polymers can occur in the presence of basic or acidic residues unless all process lines remain passivated. Elevated storage or shipment temperatures require extra safeguards against vent pressure rises due to low boiling point. Prolonged light exposure has not shown significant effects, based on batch stability testing in sealed containers.
Solubility in water and most organic solvents is relied upon during downstream solvent recovery and analytical sample prep. Inaccurate water content or trace salt presence negatively influences solubility curves, affecting blending for critical HPLC or pharmaceutical formulations. Lab-grade and industrial grades separate on this basis: application-sensitive customers require certificate-backed water-content measure, while general industrial segments may accept higher water or trace aldehyde levels.
Specifications define maximum limits for water, acidity, alkalinity, residues after evaporation, and permanganate-reducing substances. These limits directly follow needs for downstream use in organic synthesis, pharmaceutical formulation, or analytical chemistry. Bulk customers may specify process-dependent limits for aldehydes, ammonia, or heavy metals, adopting gradient tables instead of universal limits.
| Parameter | Industrial Grade | HPLC/LC-MS Grade |
|---|---|---|
| Water Content | Grade-dependent, typically higher | Very low (as certificate-defined) |
| Residue After Evaporation | Not strictly controlled | Tightly limited |
| Acidity/Alkalinity | Targeted per process | Strictly monitored |
| UV Absorbance | Not specified | Trace impurities tightly controlled |
Process streams for pharmaceutical and optical applications face substantially tighter impurity controls—sometimes defined lot-by-lot with customer-approved impurity profiles.
Typical impurities stem from residual solvents (acetone, water), feedstock-derived materials (acetaldehyde, HCN), and process-derived byproducts. Each production batch includes in-process checks for these targets. Ultra-pure grades demand process adaptation with frequent equipment passivation, filtered atmosphere, and post-reaction polishing filtration.
Water determination usually applies Karl Fischer titration across all grades. Gas chromatography quantifies organic volatiles, with tighter acceptance bands for analytical and pharmaceutical lots. Spectrophotometric analysis probes UV absorbance and residual ions to maintain instrument suitability. Adoption of published international standards (e.g., ASTM, ISO) varies depending on end-market geography and customer specification.
Commercial production relies on either by-product recovery during acrylonitrile manufacture or direct synthesis from ammonia and acetic acid derivatives. Local feedstock costs and site integration determine which synthesis route is favored. For direct synthesis, raw material purity is tightly monitored to minimize nitrogenous side products.
The main route involves dehydration of acetamide or catalytic ammoxidation of hydrocarbons, with selection influenced by integration with acrylonitrile plants or standalone demand. The dehydration path introduces amide-based byproducts, while the ammoxidation process yields more nitrogenous impurities and requires gas-phase catalyst control. Side reactions producing HCN, acetone, or acetamide residues are managed by optimizing residence time and catalyst selectivity.
Refining involves multi-stage distillation plus chemical polishing steps. Critical control points include fractionation column operation, reflux ratio tuning, and in-line dehydration. Recycled streams from off-spec batches receive extra purification passes. Final-grade distinction comes from downstream filtration (activated carbon, molecular sieves) suited to impurity load and customer requirement.
All batch releases follow multi-step review of water content, organic impurities, acidity, and residue levels. Documentation trails from raw material acceptance testing through final in-process verification, enabling traceability for regulatory and customer audits. Final release follows either internal specification or mutually agreed customer protocols.
Acetonitrile participates in nucleophilic substitution and condensation reactions, as well as Grignard-type and organometallic syntheses. Its role as a polar aprotic solvent dominates, but it also acts as a precursor for amines and acids in pharmaceutical synthesis.
Process parameters—temperature, catalyst, solvent choice—depend on both the grade of acetonitrile and application requirements. Downstream chlorination, hydrolysis, and reduction are catalyzed by metals (Ni, Pd, Cu) or acids. Sensitive downstream chemistry such as peptide coupling requires careful management of residual acid, water, and UV-absorbing impurities to avoid side reactions.
Key derivatives include ethylamines, amides, and carboxylic acids, all dependent on reaction efficiency and impurity suppression. Downstream users in pharma or agrochemical markets often request batch-specific impurity tracking to understand how lot-to-lot variation may affect yield or isolate purity.
Acetonitrile storage practices vary sharply according to purity grade and intended use. Industrial volumes employ tightly sealed, inert-atmosphere tanks to block atmospheric moisture ingress. Light sensitivity is minor, but UV-stable tankage avoids speculative yellowing or peroxide build-up over storage cycles. Humidity control becomes critical for analytical grades, as small water absorption quickly drifts property boundaries outside acceptance range.
Stainless steel or fluoropolymer-lined containers are preferred for plant-scale storage, given solvent aggressiveness toward some elastomers and base metals. Product withdrawal valves and transfer lines require periodic inspection and rotation to mitigate risk of polymer or salt deposits associated with standing product.
Shelf life assessment focuses on monitoring water content drift, acid or base build-up, and UV-absorbance changes. Technical literature and internal stability studies guide batch retest intervals, as grade and container selection have substantial impact on observed shelf stability.
Acetonitrile falls under acute toxicity, flammable liquid, and specific target organ toxicity hazard categories. These designations drive mandatory pictogram and risk-labeling for every shipped batch, in accordance with global regulatory requirements.
On-site safety guidelines require proper ventilation in transfer and packaging areas due to flammable vapor risk and acute inhalation toxicity. Personnel protection equipment includes full-coverage gloves, goggles, and organic vapor respirators for open-vessel tasks or spill response.
Acute toxicity values depend on route and exposure time. Oral and inhalation routes have documented adverse outcomes at relatively moderate exposure ranges. Operators performing handling and transfers follow medical surveillance policies laid out by both national and industry standards.
Exposure limits depend on jurisdictional regulatory bodies and customer site rules. Standard plant operations include forced-air ventilation, gas detectors, and bulk transfer automation to limit potential exposure. Emergency action plans cover spill response, medical intervention, and fire suppression aligned with local and international chemical safety protocols.
Acetonitrile output depends on upstream acrylonitrile production, as it is generated mainly as a by-product during the manufacture of acrylonitrile by ammoxidation of propylene. Any plant upgrades, feedstock changes, or operational disruptions in acrylonitrile units directly impact acetonitrile supply. Most industrial plants run with target extraction efficiency and solvent recovery, with batch consistency and product slate shaping by equipment capability and customer mix. Seasonal maintenance in core production regions, such as East Asia or North America, can temporarily tighten market availability, especially if scheduled shutdowns coincide with higher demand from pharmaceuticals or lithium battery electrolyte sectors.
Average lead times for bulk acetonitrile supply range from two to six weeks, conditional on inventory turnover at site and the buyer’s required purity or grade. Shorter lead times are supportable for standard HPLC or industrial grades if production campaigns align with established supply schedules. MOQ aligns with transport economics—bulk ISO tanks or IBCs drive down cost per ton, but specialty grades sold for synthesis or analytical use often have higher cost per unit volume due to changeover and quality assurance overhead.
Options extend from drums and IBCs to dedicated ISO tanks and bulk tankers. Packaging choice is risk-weighted based on grade purity, contamination sensitivity, and customer discharge systems. Higher-purity grades require inerted containers and controlled atmosphere fills. Routine shipments for downstream refineries, chemical syntheses, or contract manufacturers occur via closed-loop bulk containers, while pharmaceutical and battery end-use may necessitate certified single-use drum packs or specialty linings to prevent micro-contaminant transfer.
Delivery schedules respond to regional transport constraints, chemical compatibility regulations, and port clearance times. Most shipments follow Incoterm DAP or CIF for international buyers to balance logistics risk and customs compliance. Payment terms typically require established credit evaluation; advance payment or secured trade finance is preferred for first-time or high-volume buyers. Variable fuel surcharges often apply due to volatility in liquid bulk logistics costs.
Acetonitrile price structure pivots on the upstream acrylonitrile market, a derivative of propylene (petrochemical origin). Changes in crude oil and propylene spot rates immediately affect input costs, while downstream acetonitrile offers limited price-setting power due to by-product status. Feedstock optimization is constant; plant operators regularly review propylene-to-acrylonitrile conversion efficiency and solvent yield to reduce unit cost, while managing ammonia and catalyst price swings.
Commodity volatility drives most pricing shifts—shutdowns, supply chain bottlenecks, and changes in regional demand for acrylonitrile (ABS resin or acrylic fiber) ripple into acetonitrile availability. Environmental compliance investments or unplanned outages at major plants in China or the US shift the balance, causing spot or contract acetonitrile prices to spike. Regulatory pressures around hazardous production waste, as well as tighter emissions rules, can trigger capital expenditure which then filters down into price adjustments.
Grade-purity distinctions account for a significant proportion of price variation. HPLC and pharmaceutical-grade acetonitrile demand extra purification (removal of specific trace metals, UV-absorbing species, and water content) and require release testing per recognized standards or as specified by end users. Certification for pharmaceutical, analytical, or battery grades typically includes GMP or ICH-compliant documentation, as well as traceability and security in secondary packaging. Pack integrity and supply chain risk mitigation (e.g., nitrogen blanketing, tamper evidence) add further cost above that of standard industrial grades.
China, the US, Europe, and India serve as major production and consumption hubs. Global supply tends to remain tight whenever acrylonitrile capacity utilization drops or downstream ABS manufacturers cut operating rates. Shifts in battery electrolyte demand—spurred by the EV industry—now influence market tightness, with pharmaceutical synthesis as a secondary pull factor. Long-term contracts cover the bulk of global flows, with regional traders and packagers balancing shortfalls through spot cargoes.
Acetonitrile values are expected to stay exposed to upstream volatility. Moderate, incremental supply expansion is anticipated, but EV and pharma sector consumption remains the prime wildcard. Market prices should reflect cost pass-through from propylene, ammonia, energy input changes, and compliance requirements. Data sources include trade statistics from UN Comtrade, customs data, published producer quarterly disclosures, and regional commodity index pricing services. Forward projections use established market analytics models, weighting new acrylonitrile plant investments, forecast EV battery production, and regulatory trendlines in major production countries.
Operators report renewed interest in maximized solvent recovery from acrylonitrile units, driven by both margin capture and sustainability. Significant expansions or debottlenecking projects are periodically announced; commissioning delays or stricter environmental impact assessments sometimes slow new capacity realization.
Compliance with REACH, TSCA, and China’s chemical management frameworks continue to shape permissible sales flows. Suppliers undergo frequent requalification to demonstrate conformance with evolving occupational exposure limits, transport hazard labelling, and permitted residual impurity levels, particularly for pharma and battery-grade supply chains. In-process documentation and change notification timeframes have lengthened, resulting in more granular batch traceability requirements across international customers.
Operational risk management strategies include diversified feedstock sourcing, investment in improved solvent separation and analytical release systems, and geographic diversification of storage hubs to meet emergency demand shifts. Most established producers maintain dynamic contingency planning for feedstock or transport shortfalls, and regularly review packaging and container certification protocols according to latest customer and regulator feedback.
Acetonitrile’s versatility sees it processed for distinct roles across pharmaceuticals, agrochemicals, analytical chemistry, electronics, and specialty chemicals sectors. Each industry places its own demands on process residues, trace metal levels, and consistent volatility. The approach to production and quality assurance directly determines suitability for downstream application.
| Application | Recommended Grade | Key Concerns |
|---|---|---|
| HPLC/Analytical Use | HPLC Grade, Chromatographic Grade | UV absorbance profile, sub-ppm water, absence of background contaminants |
| Pharma API Synthesis | Pharma, Low Water/Low Metal Grades | Residual solvents, metallic impurities, low water, compliance with pharmacopeia |
| Agrochemical Processing | Technical Grade | Sufficient purity for synthesis, cost focus; some flexibility in trace contaminants |
| Battery/Electronics | Electronic, Battery, or Ultra-Dry Grades | Low conductivity, metal-ion control, sub-ppm moisture, stable packaging |
| General Synthesis/Lab Use | General, Lab or Technical Grade | Consistent volatility, controlled organic side-product levels |
Start with the end-use in mind—whether it’s active pharmaceutical synthesis, high-throughput analysis, or large-scale industrial reaction. Each field imposes different stress points on impurity, stability, and certification.
Pharmaceutical, food, and electronic sectors reference defined international standards and compendia. Regulatory demands can dictate not only purity but also trace element and residual solvent margins, and may require formal certificates of analysis or audit of quality systems.
Exact purity level, water content, organic impurity spectrum, and background UV absorbance fluctuate by application. Analytical and battery fields often require the narrowest impurity ranges, whereas general synthesis may favor throughput, consistency, and supply reliability.
Cost and logistics constraints impact the choice between premium grades and technical solutions. Large, process-scale users may benefit from custom Grade-by-Application programs that optimize property and cost alignment, with packaging and delivery stream matched to consumption pattern and storage infrastructure.
Lab-scale sampling and pre-shipment validation run help confirm that product batch attributes align with downstream needs—covering solubility, impurity carry-over, and critical properties like water or trace metals. Our technical support team assists in aligning internal batch control criteria with customer-defined specifications, and adapts process release standards based on field performance and feedback.
Consistent manufacturing oversight forms the fundamental basis of our Acetonitrile output. Operational lines work under sustained application of ISO 9001-certified quality management systems, with routine external and internal audits verifying the integrity of process control steps. This structure provides traceable accountability across production, blending, packaging, and storage operations.
Acetonitrile grades produced cover a span from industrial synthesis to high-purity applications such as pharmaceutical intermediates and chromatography. Certification scope shifts according to downstream sector: voluntary registration of pharmaceutical-grade ACN under ICH Q7 GMP frameworks can be offered, with supporting documentation for audit review. Where EU REACH registration is relevant, supply shipments originate from pre-registered or fully registered inventory. Compliance with GHS/CLP for hazard labeling and SDS format is maintained in all regional markets.
Detailed production batch records, certificates of analysis, and impurity screening reports accompany shipments by default. Analytical methods are tailored to the profile and criticality of expected trace constituents—water content, amine residuals, and trace metals reflect both regulatory and user-driven acceptance criteria. Documentation can be further supplemented with inspection records, traceability logs, or third-party testing reports according to customer request. Access to ongoing change notification, deviation records, and quality incident tracking is provided under NDA or QA agreements for supply-sensitive customers.
Acetonitrile output is orchestrated in line with real-time demand visibility, forecast meetings with core end-users, and periodic load balancing across production units. Production lines are sized to absorb unplanned domestic and export surges; scheduled turnaround windows and feedstock contract timing are designed to cushion extended demand cycles and raw material availability shifts. Short-notice order response and volume-adjusted planning can accommodate trial, pilot, and seasonal acceleration needs, within practical plant throughput boundaries.
Plant capacity investment correlates directly to observed long-term demand patterns in pharmaceutical synthesis, HPLC applications, and extraction processes. Feedstock reliability is measured through relationship stability with upstream hydrogen cyanide and ammonia suppliers. Inventory levels are maintained both in on-site tank farms and designated outside-plant storage, to buffer against shipping bottlenecks. Core supply lines utilize direct loading to minimize contamination and eliminate container cross-over risk. Contractual supply terms can set minimum guaranteed monthly or quarterly volume by mutual negotiation.
Sample requests follow a clear technical vetting and feasibility check involving both QC and commercial assessment. Customers specify intended grade, anticipated application end-use, volume, and critical specification thresholds. Representative test material is supplied in sealed containers under controlled chain-of-custody; analytical documentation mirrors final bulk shipment grading. Lot retention is maintained on all samples for downstream comparison and dispute reconciliation as required.
Cooperation modules include volume-based long-term contracts, spot supply, semi-annual planned delivery cycles, and consignment stock placement at bonded facilities. Amendment clauses can be triggered based on process qualification results, regulatory reclassification, or macro supply chain events. Custom arrangement for toll processing, impurity profile adjustments, or packaging configuration can be set into contract, with pricing structures reflecting actual production, transportation and compliance commitments on a customer-by-customer basis.
Research in acetonitrile pivots on process optimization and impurity control. On the production side, developers pay close attention to crude acetone cyanohydrin utilization, hydrogen cyanide route selection, and the recovery from acrylonitrile byproduct streams. Quality control teams monitor trace impurity profiles, especially water, aldehydes, and halides. For analytical grades, ongoing R&D emphasizes purity enhancement for LC-MS and HPLC use, where background ion trace levels can influence chromatography baselines.
Acetonitrile’s role in battery electrolytes for lithium-ion and sodium-ion battery systems draws ongoing development. Further R&D tracks its solvent action in pharmaceutical intermediates, peptide synthesis, and DNA sequencing. Small-volume specialty use in semiconductor wet processes continues to drive discussion on ultra-trace metal and particulate control, which sets batch-specific release profiles distinct from those in bulk industrial solvent supply.
Process engineers closely monitor catalyst deactivation, side-product management, and solvent losses. Scale-up from pilot to commercial runs presents challenges in managing volatile organic emission and energy balance of the distillation columns. Recent improvements emphasize closed-loop recycling systems and more selective absorbents to limit process halide breakthrough. Purification breakthroughs link closely with real-time, in-process analytics to tighten batch consistency and provide better grade traceability to end-users.
Forecasting for acetonitrile must take into account the continued dependence on acrylonitrile production volumes, which governs crude supply to purification units. While the pharmaceutical and analytical sectors show steady demand, substantial growth rates align with energy storage markets and electronic chemicals, subject to global investment in battery manufacturing and foundry expansion. Fluctuations in upstream propylene and hydrogen cyanide markets directly affect commercial-scale planning for investment in new purification lines or capacity debottlenecking.
Production units are transitioning from batch to continuous systems in some facilities, supporting tighter control of process parameter drifts and reducing exposure to atmospheric moisture during transfer. On-line quality monitoring and digital batch records assist with tighter release management and enable more traceable cause-effect correlation during troubleshooting.
Manufacturers acknowledge that reliance on toxic intermediates and byproduct routes requires ongoing risk management and regulatory adaptation. Recovery and recycling of waste acetonitrile from analytical labs and pharmaceutical units become an area for sustainability gains. Implementation of cleaner catalyst systems, reduction of process water use, and secondary solvent recovery units mark key technical contributions to greener manufacturing. Project teams track best-available-technology benchmarks for emissions, focusing on real measurable reductions in volatile loss per ton of product delivered.
Customers often request batch-specific impurity breakdown and compatibility checks for new application requirements. Technical teams provide support based on true-grade data and run comparative impurity profiles across product lots. Consultation covers not only solvent performance, but guidance on downstream blending, stability testing, storage, and pipelining impact.
Onsite and virtual troubleshooting targets issues such as phase separation, trace residue accumulation, or reaction kinetics affected by grade-dependent water or halide levels. Support covers process-specific recommendations: for instance, electronic grade users may require independent verification of alkali and alkaline earth contamination. Application suggestions incorporate best practice handling to avoid peroxide formation in open-system usage, or process adjustments to minimize batch-to-batch revalidation on high-purity lines.
Long-term supply agreements include tailored release specifications by grade category: technical, HPLC, electronic, and custom blend. Feedback from customer QC allows iterative improvement of internal standards. Full traceability of batch records is maintained, and complaints undergo root cause investigation with corrective action committed to continuous improvement. Training for customer operators on safe solvent handling, shelf-life monitoring for open drums, and guidance on residue disposal regulation also forms part of the ongoing support framework.
Our facility focuses on the continuous manufacture of high-purity acetonitrile, supporting production runs that keep major industries in operation. We handle raw material selection, reactor performance tuning, process yield optimization, and solvent recovery internally. Every barrel fills under a system that tracks and measures the real output from every batch, reinforcing our role as a genuine source in the global chemical supply chain.
Customers turn to our acetonitrile for several core applications. The pharmaceutical sector leverages it for active pharmaceutical ingredient synthesis, particularly in peptide and nucleotide chemistry, where contaminant control affects downstream reactions. In the field of analytical chemistry, high-performance liquid chromatography (HPLC) demands ultra-low residue levels. Our refining and specification management ensures consistent results for laboratories and process lines. Electronics manufacturers require a solvent they can depend on for extraction and cleaning steps that interface with sensitive surfaces and electronics-grade materials.
The team certifies every batch for water content, acidity, residue after evaporation, and key impurity profiles. Analytical equipment, such as Karl Fischer titration, GC, and HPLC, run at-line and in the laboratory, providing immediate feedback during the production and blending stages. Experience in continuous processing lets us calibrate instruments and verify analytical results against recognized standards, reducing interruptions due to off-spec batches. The goal is always real, reproducible results with traceable batch records.
Our operation supports shipments in bulk tankers, ISO container units, drums, and customized intermediate bulk containers. Clean filling areas and tank maintenance prevent particle and moisture ingress. Stable supply planning links raw materials, process uptime, and logistics schedules, giving customers a consistent flow of acetonitrile with full visibility on loading, handling, and dispatch. We routinely adapt packaging protocols to specific regulatory and sector needs, as required by customers in North America, Europe, and Asia.
Direct feedback from plant staff and product engineers provides customers with technical guidance. Our support covers process adaptation, trace contaminant troubleshooting, and process compatibility checks for applications such as polymerization and resin synthesis. By managing the entire production chain, our technical staff bridge factory operations and application challenges without external intermediaries. We use application feedback to refine our purification and finishing processes, improving product consistency.
Direct control over all stages of acetonitrile production, from raw inputs to container dispatch, supports negotiations around value, lead time, and specification scope. Distributors and procurement departments benefit from our transparent approach to batch tracking, compliance documentation, and logistics performance. Consistent supply and application experience drive down operational risks for recurring orders and new project procurement. Our business model centers on reliable, sustained partnerships with companies that require stable, high-volume access to acetonitrile backed by the producer’s direct accountability.
| Key Assurance Areas | Our Approach |
|---|---|
| Production Oversight | Managed at the same site as quality assurance and technical support |
| Analytical Testing | Performed with in-house instrumentation for every batch |
| Packaging Flexibility | Bulk, drum, or custom containerization based on customer operations |
| Technical Service | Factory-based staff available for project-specific consultation |
| Supply Planning | Integrated logistics from loading bay to end-user site |
Experience in solvents manufacturing teaches that customers working with high-performance liquid chromatography (HPLC) have clear expectations. Every step in producing HPLC-grade acetonitrile must target the minimum levels of impurities—especially water. Our production facilities address this need directly at the synthesis and purification stages, backed by careful analytical control. The presence of water, even at low ppm levels, can skew retention times, peak shapes, and detection limits in sensitive HPLC methods. For chemists running complex separations, reliability starts with solvent purity.
We maintain water content in our HPLC-grade acetonitrile below 0.05%, commonly at or less than 500 ppm. Achieving this result requires not just distillation but integrated drying systems with continuous monitoring. Each batch undergoes Karl Fischer titration in our on-site lab, ensuring consistent water content. Deviations, even minor, cause issues such as baseline noise, shifted peaks, and lower reproducibility in chromatographic analyses. For LC-MS workflows, excessive water can damage the instrument and decrease signal intensity. Labs working under regulatory scrutiny cannot risk out-of-spec solvent batches; that drives us to enforce narrow specification windows proactively.
Water pick-up during production, transfer, and packaging remains a constant challenge. Using high-grade stainless steel and inert gas blanketing, we keep atmospheric moisture away from acetonitrile at all contact points. Acetonitrile’s hygroscopic nature means even short exposure during drum filling or bottle capping can raise water content. Our standard drums feature tamper-evident, nitrogen-flushed seals. For customers, this minimizes the chance of recontamination during storage. Laboratory packaging (e.g., ampoules or smaller bottles) ships under controlled atmospheres to keep the solvent ready-to-use with no further treatment required on delivery.
Precision in water content does not come from generic handling. Our technical team continuously reviews methods and equipment effectiveness, always working with real-world analytics feedback from our industrial partners. If a customer’s method shows high water sensitivity, we can modify loading and drying procedures. We encourage our clients to store acetonitrile in tightly closed containers and use it shortly after opening, but our manufacturing approach is built to provide the longest practical shelf life, with clear date-of-manufacture and expiry guidance on every container. Our rigorous batch testing and full traceability records back up every shipment leaving our plant.
We recognize that application needs occasionally require even tighter water specifications. For such demands, our facility can run custom drying protocols, confirmed by enhanced certificate-of-analysis documentation. Our flexibility comes from direct ownership of every production step, not reliance on outside blending or toll-processing. This direct approach supports both routine analytical needs and demanding projects in pharmaceuticals, biotech, or environmental analysis, where the margin of error for solvent impurity narrows every year.
Customers seeking a partner in solvent manufacturing will distinguish the value of direct line-of-sight manufacturing control. For every batch of HPLC-grade acetonitrile, our production and quality assurance teams stand behind the labelled specification—particularly in water content—because trace success in the chromatography lab connects straight back to process discipline at the factory level.
Every request for acetonitrile comes with straightforward questions about order minimums and packaging. As a producer with a long history supplying industrial, chemical, pharmaceutical, and academic users, we don’t shape our logistics blindly—we build them from decades of technical feedback and evolving global needs.
Industrial production runs on economies of scale. For acetonitrile, we typically set our minimum order quantity at one full pallet. This minimum balances several concerns: safe handling, rational logistics, and the reality of chemical storage regulation. Ordering below that limit increases risk and external shipping costs for both sides, while also introducing wasteful packaging. One pallet can support a range of standard containers—typically, this means enough to accommodate either multiple small drums or a single intermediate bulk container, depending on what fits the customer’s application.
We do sometimes handle orders above this minimum for companies running high-throughput liquid chromatography, large-scale synthesis, or continuous processes. Spot deliveries below one pallet rarely make sense in our production schedule; for those needing less, distributors step in with smaller repacks, but our default as a manufacturer stays at the pallet level or higher.
Our packaging program for acetonitrile focuses on regulatory compliance and safety in transit. Over the years, fire marshals, health inspectors, and transportation authorities have pressed the industry to maintain closed, spill-resistant units. For the vast majority of bulk customers, acetonitrile travels in the following main formats:
Each shipping unit carries unique identification, batch information, and precise fill data. Our drums and totes use welded caps and heavy-duty gaskets to withstand international ocean transit and rail. In markets with specific waste mandates, we offer returnable tote options to minimize resource use and handle container disposal in an environmentally sound way.
From time to time, we’ve fielded requests for alternative containers but experience shows most specialty drums fail to meet regulatory expectations for volatile, high-purity solvents. Maintaining drum and IBC standards makes it easier for customers to harmonize their own warehouse and inventory operations.
Our production team has seen common hazards arise from underfilled drums and overfilled containers. Both drive up the risk of vapor leaks and hard-to-trace contamination events. Factory-set minims and certified containers help us control quality—this directly supports customers needing trace-level purity and forensic batch traceability. The right packaging, matched with bulk logistics, also reduces the total delivered cost per liter, something every chemical manager tracks closely, especially as environmental compliance costs climb worldwide.
Our technical staff regularly evaluates new container technologies as part of ongoing improvement. We can provide detailed packaging compatibility studies or certificates upon request for sectors such as pharmaceuticals or electronics manufacturing, where off-gassing or microcontaminants mean operational shutdowns. For specialized users or emerging tech fields, engaging our packaging team early in the purchasing conversation proves its worth, as regulatory and purity requirements keep shifting year by year.
Day-to-day, the minimum we supply reflects not only our commitment to regulatory safety, but also the realities of large-scale chemistry in a global supply chain loaded with scrutiny and risk management expectations.
Acetonitrile attracts close regulatory scrutiny throughout its journey from plant to customer loading dock. Years of manufacturing and direct shipment have confirmed that acetonitrile falls under hazardous material classification for all major modes of transport—land, sea, and air. Regulatory agencies such as the US Department of Transportation (DOT), the International Maritime Organization (IMO), and the International Air Transport Association (IATA) all categorize acetonitrile as a flammable liquid, UN number 1648.
In our factory operations, acetonitrile exits the distillation columns at high purity, but its volatility and toxicity demand stringent handling protocols even before it leaves our site. The flash point sits at around 2°C, and inhalation risks become a concern without proper ventilation and closed transfer systems. These physical characteristics shape every aspect of packaging and shipping.
Every drum, IBC, or bulk container filled with acetonitrile receives the flammable liquid diamond label and the correct UN marking. There is no room for error in our labeling line. DOT regulations in the United States and comparable rules abroad require full compliance—missing a step can lead to delays, regulatory action, or much worse in the event of an accident.
Shipping small packs by air subjects us to IATA’s Dangerous Goods Regulations, which are strict on net quantity limits per inner and outer packaging. For ocean freight, we match our packaging to IMO standards and regularly inspect sealed containers before dispatch. Our team undergoes recurrent hazmat training, not because it’s a paperwork exercise, but because the risk profile demands real attention to detail.
Every shipment goes out the door with a material safety data sheet, appropriately filled shipping papers, and clear instructions for transporters and end-users. We document shipper and carrier names, identify the product as acetonitrile under its proper shipping name, and reference the relevant hazard class on all paperwork. Even minor documentation discrepancies can hold up entire truckloads at border crossings.
Inspections at every step are routine. Our carriers use only licensed, hazmat-certified drivers, and we vet logistics partners for demonstrated experience with dangerous goods. In the rare event of damage or spill, our emergency protocols kick in—containment, notification, and cleanup—as prescribed by transport security plans and federal law.
We go beyond the minimum requirements by investing in upgraded leak-proof seals, rigid containers with pressure relief, and secondary spill containment pallets. If a customer prefers bulk delivery in ISO tanks, we verify tank integrity, inspect fittings, and confirm all gaskets are in documented compliance with transport codes. Our technical team reviews every unusual route or multimodal transfer for site-specific hazards, especially in challenging climates.
All these layers of control reflect our understanding—built by decades of production and logistics experience—that handling acetonitrile means minimizing risk long before the truck, vessel, or plane arrives at the customer. This is not just regulation; it’s part of our responsibility as the original manufacturer moving high-purity solvent around the globe.
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
