Product Overview
Ethylene Glycol ACS Grade is a grade-specific glycol reagent stocked and shipped daily from our Taylor, TX warehouse. This is the grade you reach for when your analytical results have to hold up to scrutiny — ACS-grade purity means the material meets the specifications set by the American Chemical Society for reagent chemicals, so it arrives ready for titrations, standards prep, and any process where trace contaminants would compromise your data.
We carry it in sizes from a single quart for bench work up through 330-gallon totes for production-scale use. Every container ships with full safety documentation and DOT-compliant packaging.
Why This Grade
ACS Grade is the dividing line between process-grade ethylene glycol and laboratory-grade ethylene glycol. Below it, you get technical or industrial material — perfectly fine for coolant loops and heat-transfer systems, but carrying impurity levels that can skew an assay or introduce unknowns into a synthesis. ACS Grade locks down purity to a defined specification, which means your blanks stay clean and your results reproduce.
Choose ACS Grade when your work involves quantitative analysis, reference-standard preparation, or any reaction where you need to account for every variable. If you are blending coolant for a chiller loop or formulating a hydraulic fluid where trace metals are not a concern, a technical grade will do the job at lower cost. The question is simple: does your process demand documented purity, or does it demand volume at a price? That answer tells you which grade to order.
Chemical Profile
Ethylene glycol (CAS 107-21-1, molecular formula C₂H₆O₂, molecular weight 62.07 g/mol) is a clear, colorless, syrupy liquid with no detectable odor. It is denser than water at 1.115 g/mL at 68 °F, so spills will sink rather than float — an important detail for spill response planning. The compound is highly water-soluble at greater than or equal to 100 mg/mL at 63.5 °F, meaning it mixes freely with water in virtually any proportion. Vapor pressure is low at 0.06 mmHg at 68 °F, which keeps evaporation negligible at room temperature and makes it well-suited for open-vessel processes where you need the liquid to stay put. Also known as 1,2-ethanediol, this is a workhorse diol that owes its versatility to those two hydroxyl groups — they give it both its hygroscopic character and its ability to depress freezing points in aqueous systems.
Industrial Applications
Ethylene glycol ACS Grade serves buyers across laboratory, manufacturing, and industrial operations. Below are the primary applications we supply into:
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Laboratory Reagent and Analytical Standard — In analytical and research laboratories, ethylene glycol functions as a solvent, a reaction medium, and a cryoscopic-depression reference. ACS Grade ensures that impurity interference stays below defined thresholds, which matters whenever you are running quantitative work or preparing calibration standards.
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Solvent for Chemical Synthesis — Ethylene glycol acts as both a solvent and a reactant in polyester and polyethylene terephthalate (PET) production, esterification reactions, and resin formulation. Its high boiling point and miscibility with many organic compounds make it a practical choice for reactions that require sustained heat without solvent loss.
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Coolant and Antifreeze Formulation — Blended with water, ethylene glycol depresses the freezing point of the mixture and raises its boiling point, protecting closed-loop cooling systems, chillers, and HVAC equipment from freeze damage and boilover. Formulators use ACS Grade when the end product must meet tight quality specifications or when trace-metal contamination would accelerate corrosion in the loop.
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Hydraulic Fluid Component — In hydraulic systems that operate across wide temperature ranges, ethylene glycol contributes freeze-point depression and thermal stability. Its low vapor pressure reduces cavitation risk in pumps and cylinders.
Handling & Storage
Ethylene glycol carries a Warning signal word (per the product's GHS classification). The two hazard statements to know:
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H302 — Harmful if swallowed (per the product's GHS classification).
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H373 — May cause damage to organs (kidneys) through prolonged or repeated exposure (per the product's GHS classification).
Wear chemical-splash goggles and nitrile or butyl rubber gloves when handling. In enclosed or poorly ventilated areas, ensure mechanical ventilation to keep airborne concentrations low — though the very low vapor pressure at ambient temperature (0.06 mmHg at 68 °F) means vapor buildup is unlikely under normal conditions.
Store containers upright in a cool, dry location away from direct sunlight and heat sources. Use HDPE drums or original packaging; keep away from strong oxidizing agents and strong acids. Ethylene glycol is stable under recommended storage conditions and does not polymerize. Because it is denser than water and fully water-miscible, any spill that reaches soil or surface water will migrate into groundwater — contain spills immediately with absorbent material and prevent runoff to drains.
Hazmat & Shipping
Canonical transport status is not regulated. Review the current SDS and carrier requirements before shipment.
Documentation
A Safety Data Sheet ships with every order. We maintain SDS documents in English, Spanish, French, and Japanese to support international compliance requirements. A Technical Data Sheet is also available for specification reference.
We provide a lot-specific Certificate of Analysis with each shipment, documenting the actual purity and impurity profile of the material you receive — not a generic spec sheet, but the analytical data tied to your lot number.
Why Buy from Alliance Chemical
We are a chemical distributor, and this is what we do every day: receive bulk material, verify it against spec, repackage it into the size you need, and ship it under full DOT compliance from our warehouse in Taylor, TX. Shipping and handling guidance for this product has been reviewed by Andre Taki, DOT Hazmat Specialist.
You get the same packaging discipline on a single quart that you get on a 330-gallon tote — proper closures, correct labeling, and documentation in the box. Orders ships under the stated handling schedule. If you need a COA before you order, call us and we will send it.
