|
HS Code |
203018 |
| Chemicalname | Diethyl Sulfate |
| Casnumber | 64-67-5 |
| Molecularformula | C4H10O4S |
| Molarmass | 154.18 g/mol |
| Appearance | Colorless, oily liquid |
| Odor | Faint peppermint-like odor |
| Boilingpoint | 208 °C |
| Meltingpoint | -25 °C |
| Density | 1.183 g/cm3 at 20 °C |
| Solubilityinwater | 0.45 g/100 mL (20 °C) |
| Vaporpressure | 0.37 mmHg (20 °C) |
| Flashpoint | 92 °C |
| Refractiveindex | 1.393 (20 °C) |
| Autoignitiontemperature | 385 °C |
| Unnumber | 1594 |
As an accredited Diethyl Sulfate factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | 250 mL amber glass bottle with secure screw cap, labeled with hazard warnings, product details, and Sigma Aldrich logo. |
| Shipping | Diethyl Sulfate is shipped in tightly sealed, chemical-resistant containers, compliant with hazardous material regulations. It is classified as a toxic and environmentally hazardous substance; transport requires labeling, documentation, and handling by trained personnel. Shipments typically use secure packaging and may include temperature control and secondary containment to prevent leaks or exposure. |
| Storage | Diethyl Sulfate (Sigma Aldrich/Merck/TCI Chemical Grade) should be stored in a tightly closed container, in a cool, dry, well-ventilated area away from heat and ignition sources. Keep it away from acids, bases, strong oxidizers, and moisture. Store under inert atmosphere if possible. Use secondary containment and ensure proper labeling due to its toxic and carcinogenic properties. |
Competitive Diethyl Sulfate prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please call us at +8615371019725 or mail to sales7@bouling-chem.com.
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Tel: +8615371019725
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Every batch of diethyl sulfate rolling out from our reactor echoes the same story—efficiency in alkylation, reliability across chemical synthesis, and an unwavering standard of purity. We observe the liquid, colorless and with a sharp odor, offering consistently high content that exceeds 99 percent, with stringent water and acidity controls. The density and refractive index reflect not abstraction but tight process control, something our team maintains from procurement of raw ethanol and sulfuric acid to the final drying and filtration before drumming. To us, diethyl sulfate is not just an output—each liter encapsulates hours of vigilant monitoring and years of incremental improvement.
Working the distillation columns and scrutinizing each fraction, we know that even slight temperature fluctuations or residuals can disrupt purity. Diethyl sulfate doesn’t forgive short-cuts or lack of attention. Some outsiders see just another chemical. For us, after decades manufacturing this ester, we can tell a well-made product by clarity and assay—from its swift, clear pour to the way it reacts under titration. Inventory leaving our site gets documented batch by batch with full certificate of analysis—no assumptions, no cut corners. That transparency grounds trust for our customers, especially in high-sensitivity uses.
Every day brings renewed focus on the details: content typically above 99 percent, moisture levels below 0.1 percent, and acidity within tight margins. A high-performing batch means smooth downstream processing for our customers. Excess acidity or errant water traces can spell trouble for end-users, from incomplete reactions to unstable formulations. Our attention to consistent physico-chemical properties enables smooth flow in handling, precision in dosing, and predictable results in every use-case, especially in the context of industrial-scale alkylation.
In the hands of downstream users, diethyl sulfate emerges as an alkylating agent of choice for ethylating phenols, amines, and alcohols. Large pharmaceutical intermediates, dyes, and surfactants rely on ethyl sulfate for clean conversions, minimal by-products, and reliable scale-up. Talking with plant engineers, laboratory technicians, and production managers, we learn how misplaced impurities or unexpected batch variation can jam an entire production run. We’ve built our workflows knowing that a problem upstream can echo for weeks in a customer’s facility.
We see our product used to produce tetraethyl lead in countries where avgas remains relevant—though that demand has faded, the precision remains. The same holds true in the manufacture of dyes, flavors, and aroma chemicals, where selective, robust alkylation is non-negotiable. We’ve supported research teams tailoring surface modifiers for coatings and advanced materials. Each order we ship carries not a label, but our reputation with every drum.
Comparing diethyl sulfate to its cousins—dimethyl or dibutyl sulfate—reveals critical differences in reactivity, volatility, and toxicity. Ethyl groups bridge a unique gap: more reactive than butyl, more manageable than methyl in some cases. The boiling point, handling hazards, and selectivity each set ethyl apart in the lab and at scale.
During one low-water batch production week, a side conversation with our QA manager illustrated how even a small shift from methyl to ethyl can mean dissimilar rates, new impurity profiles, and a rethink of storage requirements. Customers approach us, curious why diethyl sulfate fits their process after alkyl chlorides clogged pipelines with tar. Our experience points to the cleaner, more efficient transfer of the ethyl group, leaving less room for polymerization or side reactions.
Long before a drum ships, attention focuses on safe manufacturing practice. Diethyl sulfate’s volatility and toxicity demand care from raw material delivery to final packaging. That means closed-system transfers, rigorous containment, and real-time gas detection around the fill lines. Our people have lived these hazards—the burn when a vapor escapes, the sense of urgency in every drum loading.
Regulatory compliance means more than ticking boxes. We work with regional authorities to ensure transportation and labeling align with hazard class guidelines. Spill drills are not routine—they’re preventative, anticipating weather events, mechanical breakdowns, and human error. Retraining happens in person, on the floor, with every shift rotation. Knowing catastrophic accidents in other regions, we don’t take safety instructions for granted or assume any colleague “knows how to handle it.” It’s a culture, not a checklist.
Stories cycle through the industry—drums sold off spec, “reclaimed” material passed as prime, purity reports manipulated to meet RFQ thresholds. From the manufacturing line, these are more than stories—they have consequences upstream and down. Customers who switch between vendors can spot tiny deviations in yield, color, or even smell.
Maintaining a zero-dilution policy, every batch originating here leaves with complete, fully auditable records. Tensions emerge during shortages, but we resist the urge to relax our controls, because we’ve seen the consequences first-hand—for the user and for the industry’s reputation. Years back, some competitors lost export privileges for falsifying assay claims. The lesson remains: chemical manufacturing survives by hard evidence and honest trade, not just marketing gloss.
As regulatory scrutiny intensifies around alkylating agents, we’ve adapted by investing in process improvements. Reducing acidic by-products not only makes it safer for our staff, but it also trims cost for users disposing of less hazardous waste. Years ago, an uptick in corrosion during summer humidity showed us that drier product isn’t just a paperwork issue—it’s about real-world compatibility with equipment and consistent reaction results.
We’ve replaced legacy glass-lined vessels with upgraded alloy reactors, making cleaning between runs more reliable and minimizing cross-contamination. The project taught us that major investments in plant infrastructure can ripple across the whole value chain, boosting uptime and reducing unscheduled maintenance.
Some see the product as a molecule; we see it as a workhorse for building-block transformations. We field technical calls almost daily, ranging from optimal water-jacket temperatures to filter pad recommendations during product transfer. No technical data sheet captures the nuances learned through decades spent at the plant: how temperature ramp rates affect distillation cuts, or how to spot a gummed-up receiver.
Engineers facing scale-up challenges ask why their ethylation stops short with one vendor but runs clean with ours. We point to subtle differences—less dissolved polymer, tighter control over the ratio of main product to ethers, careful nitrogen blanketing to avoid sulfate breakdown. We don’t rush to blame “operator error”—instead, we offer concrete troubleshooting tailored to what works on our own line.
From emissions monitoring to waste acid treatment, environmental rules get stricter every year. Some facilities in the region have struggled with legacy contamination from decades of less regulated practice; we’ve learned from their mistakes. Monitoring effluent and air releases, we invest in scrubbing systems and recapture methods. Sharing details of operational upgrades with industry peers, we’re transparent about improvements so all can reduce impact, not just us.
When pushes come for reductions in volatile organic emissions, we’ve turned to closed-loop distillation. Waste disposal gets managed by approved third parties, but oversight remains in-house. Our environmental engineers review every shipment and audit disposal sites. We know the headlines about chemical leaks erode trust in the sector, so every improvement reflects our commitment to keep incidents off the front page.
The market for diethyl sulfate moves with industry cycles: expansion in generic pharmaceuticals sparks one run-up, while regulatory changes can dampen volume with little warning. Through ups and downs, our approach stays consistent—keeping excess stock on hand, but never at the expense of shelf-life or quality. This guarantees quick response even in tight supply conditions, a reassurance our regular buyers often reference.
Some customers drive new demand with specialty requirements—high-purity grades for analytical chemistry or ultra-low residual acids for electronic materials. Meeting these isn’t just incremental adjustment. Cross-functional teams devote weeks or months to validation, supply chain traceability, and stability trials before a single order leaves the dock. Every innovation that emerges from these collaborations—tighter spec, more robust performance—feeds into standard production, raising the bar across every order.
Cheap imitations and questionable imports circulate as alternatives, but feedback from end-users makes clear they don’t compare. Thin controls over water and residual acidity often lead to batch failures or fouled plant equipment. We witnessed a customer burn through entire filter beds after trialing an off-brand supply; subsequent analysis pointed to hidden contamination that never would’ve cleared our protocols.
Product integrity grows from continuous monitoring—flash chromatography for trace contaminants, precision Karl Fischer for water, in-process tests for stability under load. Tools matter, but so does organizational culture. Our staff approach every shift knowing what happens in our plant affects finished medicines, dyes in textiles, and the reliability of research worldwide.
For those seeking diethyl sulfate, we urge a partnership rooted in transparency. Auditing production sites, reviewing full test records, and establishing direct channels for technical troubleshooting build trust—and tangible results. Fluctuations in global ethanol pricing or sulfur supply have caused some to cut corners, but a direct relationship allows proactive problem-solving and rapid adaptation.
Where downstream alkylation struggles, we work hand in hand to optimize addition rates, solvent choices, and equipment compatibility. Years of experience reinforce that no two plant setups behave identically. With every new application, we advise trials scaled to actual process parameters—predicting behavior based on our hands-on observations, not just theory.
The world surrounding chemical manufacture shifts—regulations tighten, markets globalize, and expectations rise. Against this backdrop, producing and selling diethyl sulfate at scale takes more than technical skill; it takes the discipline to uphold standards even when market pressures increase. In a sector where incidents linger in public memory, only continual investment in plant, process, and people keeps performance up and risks down.
Customers, regulators, and partners expect transparency, reliability, and direct knowledge. We deliver that by staying connected to every aspect of our product’s lifecycle—from the sourcing of raw materials to end-use support. Through careful tracking, ongoing innovation, and a practical approach to every question or problem, diethyl sulfate exits our plant with the same confidence we hope our downstream users bring to their own work.