Ethanol

About Ethanol

Ethanol (ethyl alcohol, C2H5OH; CAS 64-17-5; UN 1170, Class 3) is a colorless, volatile, flammable liquid with a characteristic odor and a slightly sweet taste. It boils at 78.4 ℃, melts at −114 ℃, and has a density of 0.789 kg/L at 20 ℃. It is miscible with water in all proportions and with most organic solvents — the entry ticket to its role as the most widely used solvent and disinfectant base in the world. At Dongying EastChem we supply ethanol across the 75%, 95% and 99.5% anhydrous grades, matching fuel, industrial, pharmaceutical and sanitation requirements.

How Ethanol Is Produced

Two industrial routes supply the market. Fermentation converts sugars from corn, sugarcane, cassava or cellulosic biomass with yeast, followed by multi-column distillation; this is the renewable route that dominates beverage, fuel and many pharma-adjacent streams. Synthetic hydration of ethylene over phosphoric-acid catalyst supplies petrochemical ethanol for industrial uses. Both routes converge on the same molecule; what differs is impurity fingerprint (fermentative congeners versus olefin traces) and carbon accounting. Downstream of either route, water is the controlling impurity: ethanol and water form an azeotrope at 95.57%, so breaking past 95% to anhydrous grade requires pressure-swing or entrainer distillation or — the modern standard — molecular-sieve dehydration, a technology whose regeneration chemistry is cousin to the sieve-desorption duty our n-pentane serves in gas processing.

Grades and What Sets Them Apart

• 95% hydrous ethanol — the azeotropic workhorse for industrial solvent duty and disinfectant blending.
• 99.5% anhydrous (absolute) ethanol — water below 0.1%, for fuel blending, fine chemistry and moisture-sensitive processes; our advanced distillation and purification trains deliver this grade with impurity control suited to sensitive applications.
• USP and FCC grades — pharmacopoeia and food-chemical purity with controlled heavy metals, methanol and aldehydes for pharmaceutical, beverage-adjacent and laboratory use.
• Fuel-grade ethanol — denatured or undenatured for gasoline oxygenate blending programs.

Applications in Depth

Industrial Solvent

Ethanol’s combination of solvency, fast evaporation and near-universal regulatory acceptance makes it the default solvent for coatings, inks, adhesives, cosmetics and fragrance extraction. It dissolves resins, essential oils and many actives while leaving no residue — and its water miscibility lets formulators dial in exactly the evaporation profile needed from alcohol-water systems.

Disinfection and Sanitation

The 70–75% ethanol-water mixture remains the reference surface disinfectant of hospitals, food plants and households: water slows evaporation just enough for protein denaturation to complete, which is why “70% beats 100%” is standard microbiology. Sanitizer gels, wipes and sprays built on ethanol protected global operations through the pandemic era and remain a standing consumer and institutional category.

Fuel and Oxygenate

Blended at 5–10% (E5–E10) and higher in dedicated programs (E85, ED95), ethanol raises gasoline octane, improves combustion and displaces fossil carbon. Fuel programs anchor global ethanol trade flows, with hydration-grade specifications and denaturing arrangements governed by each jurisdiction’s excise regime.

Chemical Intermediate

Ethanol feeds ethyl ester synthesis (ethyl acetate and downstream esters), ethylamine production for agrochemicals and pharma, ethylene production in bio-ethylene routes, and ethoxylate chemistry. Its derivative tree quietly underpins large segments of fine chemistry.

Pharmaceutical and Laboratory

USP-grade ethanol serves as processing solvent, extraction solvent and excipient in drug manufacture; laboratory operations run on it from slide preparation to chromatography. Both demand the batch-level impurity documentation a disciplined supplier maintains.

Extraction

Botanical and flavor extraction uses ethanol alone or in water blends — food-grade status, tunable polarity and easy removal make it the cleanest extraction solvent at scale. Extractors pair it industrially with n-hexane for oilseed work where cost dominates.

Ethanol vs Isopropanol: the Working Comparison

The two alcohols divide the disinfection-solvent field pragmatically. Ethanol carries pharmacopoeia acceptance for human-contact uses and beverage-adjacent channels but excise complexity; isopropanol is the cheaper, more aggressive degreaser with no excise burden — the electronics-industry favorite. In plants that use both, consolidated supply of the pair from one quality system is the efficient pattern, which is exactly how our alcohols range is structured.

Safety, Handling and Storage

Ethanol is highly flammable (flash point 13 ℃) with vapors heavier than air. Storage belongs in grounded, ventilated, explosion-disciplined solvent farms; transfers need bonding; and area classification follows standard Class I practice. Excise jurisdictions add permitting and denaturing administration. The product itself presents low systemic toxicity — the occupational file centers on flammability, and the SDS covers the rest. Every EastChem shipment of UN 1170 product moves with complete dangerous-goods documentation.

Sustainability Profile

Renewable-feedstock ethanol — from non-GMO corn, sugarcane or cellulosic biomass — carries biogenic carbon and displaces petrochemical solvent at equal performance. Our production partners operate closed-loop systems with byproduct recycling (CO2 capture, stillage-to-feed), so the sustainability claim stands on engineering rather than assertion. For brands building carbon accounts, feedstock documentation is available with the supply file.

Quality Documentation

A useful ethanol COA reports assay by GC, water (Karl Fischer), methanol, aldehydes, acidity, residue on evaporation, and — for USP/FCC grades — heavy metals and identity tests. Denatured grades add the denaturant declaration. We certify per lot and retain matched samples, so incoming QC can cross-check any parameter within minutes of arrival.

Why Source Ethanol from Dongying EastChem

We are a 19-year chemical manufacturer with three subsidiaries supplying high-purity ethanol across 75%, 95% and 99.5% grades — USP, FCC and industrial standards — with cutting-edge distillation, sustainable feedstock options and closed-loop production partners. Pricing is competitive at container scale, packaging runs 160 kg drums through IBC and ISO tank, and documentation arrives complete. MOQ one 20-foot container, samples dispatch in about 2 days, payment by T/T or L/C. Pair with isopropanol and the ethanol product page for the full quick-dispatch program.

Ethanol in Fuel Programs: the Blending Economics

Fuel-ethanol programs move millions of tons annually, and their mechanics matter to industrial buyers because they set the pricing floor the whole market rides on. Refiners and blenders value ethanol as an octane enhancer (blending octane north of 100) and oxygenate; E10 programs absorb roughly a tenth of gasoline pools in major markets, and high-blend fuels (E85, ED95 for diesel substitution in buses) extend it. Denaturing arrangements — adding bitterants or gasoline fractions to render the fuel ethanol undrinkable — carry excise consequences that vary by jurisdiction, so trade flows route through licensed denaturing and bonded storage. For industrial ethanol buyers, the practical takeaway is that fuel-program cycles (harvest seasons, mandate adjustments, energy prices) move availability and price, and a supplier holding stock through those cycles smooths what would otherwise be procurement whiplash.

Quality Control in Ethanol Production

Serious ethanol plants run a tight analytical loop. Fermentation streams track sugars, viable yeast and bacterial contamination (lactobacilli steal yield); distillation control centers on the azeotrope and column efficiency; dehydration trains verify water continuously; final product certification covers assay by GC, methanol (toxic adulterant risk in beverage channels), aldehydes (flavor and color), fusel oils, acidity and residue. The best single question an incoming QC lab can ask its supplier: is the COA method-annotated? Gas chromatography conditions, Karl Fischer sampling and aldehyde methodology differ enough between labs that un-annotated numbers compare poorly. Our COAs carry method references precisely so buyer and supplier laboratories reconcile on the first try.

Regulatory and Excise Practicalities

Ethanol’s identity as a consumable substance drags a regulatory tail the rest of the solvent cabinet avoids: excise regimes (with bonded warehousing and duty suspensions for denatured industrial grades), beverage-adjacent licensing for potable streams, and pharmacopoeia documentation for USP users. Importers should line up the permits before the container sails, and exporters should confirm the destination’s denaturant rules — a formulation acceptable in one market can be non-compliant in another. None of this is difficult; all of it is paperwork that punishes the unprepared at the port. Our documentation desk handles the ethanol file as standard practice.

Storage and Plant Practice for Ethanol

Ethanol storage is textbook flammable-liquids engineering with two specific notes. First, water pickup: hydrous grades tolerate it, but anhydrous ethanol drifts above its 0.1% water specification through warm, humid venting — sealed tanks with dry vents (or nitrogen blanketing on bulk storage) protect the grade. Second, materials compatibility: ethanol attacks certain elastomers and zinc-containing coatings more than hydrocarbons do, so pumps and seals specified for “solvent” service should be verified for alcohol service specifically. Dispensing areas follow Class I electrical practice, and bonding during drum transfers is routine discipline. Sites doing it well log temperature and headspace checks monthly; the paperwork is trivial compared with re-certifying a drifted lot.

About this guide: grades, applications and regulatory notes reflect our current ethanol supply program; the delivered COA governs each lot. Buyers integrating ethanol into fuel, sanitation, extraction or pharmaceutical channels can request the documentation pack, denaturing arrangements and consolidation options covering the full alcohols range with their quotation.

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Dongying EastChem Co., Ltd
Email: [email protected] · WhatsApp: +86 188 5467 0769
Dongying, Shandong, China