|
HS Code |
186174 |
| Chemical Name | Benzene |
| Cas Number | 71-43-2 |
| Molecular Formula | C6H6 |
| Molecular Weight | 78.11 g/mol |
| Appearance | Colorless, clear liquid |
| Odor | Aromatic, sweet odor |
| Boiling Point | 80.1°C |
| Melting Point | 5.5°C |
| Density | 0.8765 g/cm³ at 20°C |
| Solubility In Water | Slightly soluble (1.79 g/L at 25°C) |
| Flash Point | -11°C (closed cup) |
| Autoignition Temperature | 498°C |
| Vapor Pressure | 12.7 kPa at 25°C |
| Refractive Index | 1.5011 at 20°C |
| Flammability | Highly flammable |
As an accredited Solvent Benzene factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Solvent Benzene is packaged in a 25-liter blue HDPE drum with a secure screw cap and clear hazard labeling. |
| Shipping | Solvent Benzene is shipped in tightly sealed, clearly labeled containers—typically steel drums or ISO tanks—to prevent leaks and vapor release. It must be transported following hazardous material regulations, away from heat sources, ignition, and incompatible substances. Proper ventilation, protective equipment, and documentation are required to ensure safe handling and delivery. |
| Storage | **Solvent Benzene should be stored in a tightly closed, chemical-resistant container, in a cool, dry, well-ventilated area away from heat, sparks, open flames, and incompatible materials such as oxidizers. Storage areas should be clearly labeled, equipped with spill containment, and designed to prevent benzene vapor accumulation. Access should be restricted to trained personnel with appropriate safety precautions in place. |
Applications of Solvent Benzene in Industrial ManufacturingAs a certified producer of high-purity solvent benzene, we support industrial customers across key manufacturing sectors with precise and controlled integration of this fundamental petrochemical. We recognize the critical role of solvent benzene in synthesis, extraction, and formulation processes, and actively align production standards to meet regulatory and quality requirements for each downstream application. 1. Synthesis of Styrene Monomer in Polystyrene ProductionBenzene is the main aromatic feedstock for ethylbenzene production, which is subsequently dehydrogenated to styrene monomer. This process occurs in dedicated petrochemical plants using fixed-bed catalytic reactors. Our product quality meets specifications required for minimal impurity carryover, ensuring the consistent performance during alkylation and subsequent dehydrogenation steps. Close quality control prevents trace contaminants that could poison catalysts, protecting operational efficiency and styrene purity used in polystyrene molding and extrusion. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
2. Production of Cyclohexanone for Nylon ManufacturingBenzene undergoes catalytic hydrogenation to cyclohexane, which is then oxidized or further processed to cyclohexanone, a key precursor in caprolactam and adipic acid synthesis. These intermediates are critical for large-scale nylon 6 and nylon 6,6 resin production. We supply high-purity grades to minimize unwanted by-products and optimize catalyst life during hydrogenation and oxidation. This ensures consistent molecular weight control and color stability in final nylon polymer applications within fibers and engineering plastics. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
3. Manufacture of Cumene for Phenol and Acetone SynthesisBenzene reacts with propylene in the presence of acid catalysts to yield cumene, which downstream units oxidize and split to form phenol and acetone. Phenol serves as a building block for epoxy resins, bisphenol-A, and polycarbonate, while acetone is used as a solvent and chemical intermediate. We maintain process-grade benzene within strict limits for non-aromatic and sulfur impurities to guarantee catalytic efficiency and downstream product color, crucial for polycarbonate optical clarity and resin performance. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
4. Extraction Solvent in API (Active Pharmaceutical Ingredient) PurificationChemical synthesis routes for various active pharmaceutical ingredients employ benzene as a non-polar solvent in specific extraction, crystallization, or reaction processes. Pharmaceutical applications demand pharmaceutical-grade purity with stringent controls on residual solvents, aromatic content, and processing contaminants to align with health authority guidelines. We ensure traceability and deliver solvent with full analytical documentation and batch certification to support GMP audits and facilitate direct use in validated production lines. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
5. Precursor in Linear Alkylbenzene (LAB) Detergent ManufactureBenzene undergoes alkylation with long-chain olefins to form linear alkylbenzene, then sulfonated to LABS, a primary ingredient in biodegradable detergents. Plant operations require impurity‐controlled benzene to avoid color bodies and off-odor byproducts, especially for detergent applications in household and personal care. We supply LAB-manufacturing customers with technical-grade solvent that achieves the necessary aromaticity and restricts polycyclic aromatic hydrocarbon contamination for regulatory good standing worldwide. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
6. Extraction Solvent in Analytical and Fine Chemical ProcessesBenzene is routinely selected as a standard extraction solvent in the preparation, separation, and purification of laboratory-scale fine chemicals, natural products, and for reference standard preparation. Precision users such as analytical laboratories and reagent producers demand controlled levels of benzene impurities, low water content, and documentation suitable for ISO-accredited quality assurance. Through full-track lot management, direct purity validation, and comprehensive batch testing, we enable safe and compliant solvent use for spectroscopic, chromatographic, and preparative analyses. Industry compliance standards
Typical usage ratio
Downstream process integration
Final product types
|
Competitive Solvent Benzene prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615365186327 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8615365186327
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
In our daily work at the plant, Solvent Benzene stands as one of the most sought-after core solvents. Benzene’s aromatic ring structure grants it unique properties that support countless chemical processes. Our model’s purity profile consistently lands in the high 99.9% range, as confirmed by internal chromatograph analysis and independent third-party labs. That level of purity makes a difference—pure benzene cuts down on side reactions, so you will notice fewer byproducts down the line.
One of the earliest things we learned producing benzene is how much the tech world, coatings sector, and resins manufacturers rely on a solvent they can trust to consistently perform. Impurities tend to introduce trouble, not just in batch runs, but in catalysts’ shelf life and process yields. A single customer once pointed out, after switching to our solvent-grade benzene, that catalyst replacement frequency dropped by a third—translating into less downtime and savings on platinum group metals. That’s the ripple effect of tight quality control.
Not all benzene is equal. The difference starts with the raw feedstocks: ours comes exclusively from reformate fractions that undergo close analysis for sulfur, olefin, and naphthene contamination. Any batch out of spec doesn’t advance. Our typical model boasts a water content under 0.005%, and sulfur rests below 0.2 ppm. We track chlorinated compounds, thiophenes, and peroxides batch by batch, since those traces jeopardize polymerization or halogenation efficiency for everyone downstream. If you have dealt with erratic yields or unexpected product discoloration, trace contaminants are usually the culprit. We keep a close lens on the color index as well, knowing some industries—photoresists, electronic solvents, certain dyes—demand colorless solutions.
The physical constants speak to our experience. Boiling point measures near 80.1°C, densities cluster between 0.876 and 0.878 g/cm³ at 20°C, and the refractive index sits at 1.501 to 1.503. Each of these specs emerges from strict adherence to ASTM testing practices. Our operators run shift checks on refractometers and specific gravity meters, not because someone mandates it, but because any trouble in those numbers hints at contamination or distillation slip-ups. Catching that early avoids lost runs and headaches later.
Over the years, we have shipped solvent benzene into sectors ranging from agrochemical intermediates to plastics, adhesives, paints, and rubber manufacturing. Manufacturers of styrene and cumene—our largest single group of volume clients—count on solvent benzene’s stability through both alkylation and oxidation processes.
Our direct clients running phenol/acetone lines or producing cyclohexanone highlight a common need: predictable performance in vapor-phase and liquid-phase reactions. Cyclohexanone producers, for example, have shown how trace polar compounds affect hydrogenation yields. Maintaining benzene with under 1 mg/kg polar content mitigates that risk. Many alkyd resin, PVC, and polystyrene manufacturers require high solvency and efficient volatilization. During paint and coating formulation, fast evaporation without unwanted residues speeds up line turnaround. Finishes look glossier, machinery cleans more quickly, and workers face fewer odor complaints when the feed is pure.
Pharmaceutical clients are particular about metals content, and we routinely check benzene for iron and lead at ng/g levels. In certain synthesis lines, even a minor slip in those numbers means discarded inventory or failed regulatory checks. Many buyers bounce back and forth between reagent and solvent grades; we’ve found that most reaction-level tasks succeed with solvent benzene as long as it meets the water, sulfur, and hydrocarbon profile required. Anything with higher sensitivity—like parenteral intermediates—typically sees a move up to reagent grade, but solvent benzene covers a wide stretch of industrial needs.
Handling benzene always requires attention, not only for regulatory compliance but for the health and comfort of your team. In the plant, our closed transfer systems and loading arms keep vapors contained. Fume control stops odor complaints long before they reach the breakroom. Rarely do new operators believe how light and mobile benzene’s vapors can be—without vapor recovery, those levels spike in minutes, especially around summer transfer points or open tanks. We’ve learned that investments in high-efficiency carbon scrubbers pay for themselves many times over.
Clients appreciate that our packaging, whether ISO tanks, drums, or bulk, gets the same attention as our own storage. We line-check every drum wash and use vapor-tight seals. Once, a customer flagged a visual impurity—a cloudiness that turned out to trace back to a carrier’s exposure to excessive heat in transit. Since then, we log thermal data on all loads and double-seal drums during hot weather runs.
Lately, environmental concerns are front of mind for industry and communities. Benzene demands particular care: most production zones have continuous VOC monitoring, and zero-dumping procedures. Site staff run regular soil and groundwater checks. Internally, we run quarterly third-party environmental audits. These aren’t just for the record—they have helped steer us to install better vapor capture units, keep our air permit updated, and maintain good standing with regulatory agencies. Benzene’s risks are real, but they can be managed with discipline and the right systems in place.
It’s easy to assume one hydrocarbon solvent can substitute another, but real production tells a different story. Compared to toluene, benzene proves more volatile and has a lower boiling point. That makes it fit for distillation-based separation processes, or for cases where trace residue from slower-evaporating solvents might disrupt end-use performance. Benzene dissolves most aromatic polymers and resins more thoroughly than cyclohexane or hexane, which means less solvent is needed to achieve full solubilization. During cleaning or recovery runs, that higher power shows up as quicker production restarts and less downtime.
Compared with technical toluene or xylene, benzene’s narrower boiling spread allows for easier downstream separation. Distillation columns running at fine-tuned cuts save energy and reduce losses. While toluene’s rapid solvency works well for pigments, dyes, and certain adhesives, benzene’s higher volatility and lower viscosity mean faster drying and less chance of soft, tacky films lingering on parts or equipment. Aromatic substitution patterns mean benzene also reacts differently in key nitration, sulfonation, and alkylation sequences; where precise para/ortho ratios matter, knowing the solvent’s performance ahead of time sharpens predictions and widens process windows.
Most competing aromatic solvents trace their feedstocks to heavier refinery fractions or coal-tar based distillation. Our benzene arises only from reformate, filtered and fractionated under strict temperature and pressure control to curtail impurity pickup. This attention to origin and process control leads to more consistent batches and reduced variance in downstream application performance.
As the upstream producer, our perspective centers on reliability. Teams on the ground deal with enough uncertainty from raw feedstock variability, process upsets, and new regulatory pushes. Adding uncertainty in solvent composition just makes life harder. Operating within six sigma for our main product parameters isn’t about chasing certifications. It tracks back to saving tons of material from scrapping, shielding downstream batches from unforeseen reactions, and keeping customer schedules on track.
Not long ago, resin plant operators ran into erratic gel times traced to high-olefin contamination in their benzene supply. The fix came through gas-phase purification upgrades—a jump in capital costs for us, but downstream, the stability returned. In our own experience, more than three-quarters of production trouble reports trace directly to a micron-level impurity that slipped through control systems. These are rarely visible on spec sheets or COAs but show up quickly in end-use performance. That’s why we maintain a team solely focused on root cause review, not just final output measurement.
Clients turn to us not just for a commodity, but for a working partnership. We routinely join customer audits, help with line troubleshooting, and support documentation trails for regulators. This close feedback loop sharpens our ability to dial in product settings batch to batch. If one customer needs a tighter density window or higher turnover, we meet to run lab-scale tests—often opening new doors to process improvement.
Operating a benzene line means contending with volatility not just in the chemical sense, but in markets and regulation. Benzene pricing tracks with crude oil swings and with demand from global polymer markets. During busy quarters, demand spikes. A pinch in feedstock trickles downstream, squeezing lead times. In response, we maintain at least two sources of certified reformate and adjust production rates based on internal forecasts. Even so, nimbleness is important—no one wants to get caught scrambling due to a single upstream shock.
Process hazards require constant attention. Benzene’s carcinogenic nature, monitored by global agencies, drives regular investment in containment, PPE, and monitoring. The “human factor” remains the X-factor: every year, we conduct real-world emergency drills, talking through evacuation or decontamination steps as they might actually unfold in the bustle of a shift. Training at the chemical plant isn’t a box you check—it’s a pattern of routine crisis simulation, scenario walkthroughs, and communication practice. These investments aren’t optional extras, but the price of working responsibly.
Continual product improvement shapes our work every week. Technology changes, as advanced catalysts and process intensification spread through the industry, so does the need for consistent input quality. We’ve moved toward automated online analyzers, in-process compositional scanning, and AI-backed process control to catch deviations early. Sometimes a minor tweak in distillation parameters—maybe even under half a degree Celsius—shaves off side aromatics and boosts line throughput by a measurable fraction. This isn’t innovation for its own sake; these fine adjustments address real complaints and support real production lines.
We also invest in customer feedback tracking. Process engineers flag problems directly, and our technical staff log, review, and follow up, rather than waiting for the next major release. Living through the batch-to-batch headaches in a customer’s facility means our team advocates for change; occasionally, such feedback leads to a tweak that improves output for everyone.
The chemical sector faces intense pressure to cut emissions, improve traceability, and satisfy end-user expectations. At the manufacturing level, real solutions emerge from how quickly and thoroughly producers respond to these pressures. For solvent benzene, embracing advanced leak detection system upgrades keeps neighbors happy and regulators comfortable. Partnering with logistics specialists, we’ve dedicated resources to transit temperature monitoring, quick containment, and transparent reporting. Mistakes cost—lost product, compliance fines, and time spent chasing root causes—but prevention costs a fraction of those losses.
Supply chain transparency adds complexity, but also value. We maintain chain of custody records, document every product touchpoint from blend tank to loading valve, and perform random batch identity verification. That process may slow outgoing shipments by a few hours, but strengthens the trust customers place in both our product and our support.
For those developing new applications—whether bio-based polymers, next-generation composites, or advanced electronic chemicals—the consistency of benzene supply and spec matter as much as price. Collaborative pilot sampling, small-lot deliveries, and technical exchanges foster innovation. Our lab staff gladly engage in joint troubleshooting or custom purification runs that lead to process cost reductions or performance improvement down the line.
Product stewardship doesn’t end with delivery. For many clients, we provide safe handling, wastewater management, and recycling guidelines. Giving full support, from certificates of test to post-delivery waste advice, closes the loop and builds respect across the value chain. It means less confusion, fewer incidents, and smoother repeat business.
The world calls for cleaner, more efficient production, and benzene’s place in advanced chemicals, pharmaceuticals, and materials is secure. Environmental and safety scrutiny won’t loosen, which motivates continued upgrades in capture technology, process rigor, waste minimization, and staff development. This is not a market for complacency. Only manufacturers offering rigorous quality control, openness with users, and commitment to improvement will earn their place as reliable suppliers. We produce solvent benzene not just as another commodity, but as an enabler of clean, consistent, high-output operations across industries worldwide.
Experience tells us that relationships built on technical exchange, responsive support, and a willingness to confront challenges head on offer the real edge in chemical manufacturing. Solvent benzene’s story is not just about bulk volumes and specs—it’s about the people who keep lines running, problems solved, and new ideas moving forward.
