Mono Ethylene Glycol

MEG, 1,2-Ethanediol

CAS
107-21-1
EC
203-473-3
Sectors
Plastics & Polymers, Automotive

Mono Ethylene Glycol (CAS 107-21-1) is a hygroscopic diol in the alcohols and glycols family, supplied as a viscous liquid that is miscible with water, alcohols and many organic solvents, and it serves as an antifreeze component, a polyester fiber precursor and a coolant in automotive and HVAC systems.

Typical Properties

Molecular formulaC2H6O2
Molecular weight62.07 g/mol
FormViscous Liquid
Colorblue
OdorOdorless
Melting point-13 °C
Boiling point197.3 °C
Density1.1135 g/cm³ @ Temp: 20 °C
Water solubilitymiscible
Flash point230 °F
pH6-7.5 (100g/l, H2O, 20°C)
GHS signal wordWarning · Irritant / harmful, Health hazard
HS code29053100
Grades availableTechnical Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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Mono Ethylene Glycol

Applications

Used as an antifreeze component, polyester fiber precursor, and coolant in automotive and HVAC systems. In chemical industries, it serves as a feedstock for PET resin, solvents, and plasticizers. It also functions as a humectant and hydraulic fluid base.

Safety & Risks

Toxic if ingested; avoid contact with food-related materials. Store in corrosion-resistant containers.

Packaging

Delivered in 230 kg steel drums or 1,000 L IBC tanks. Store cool, dry, and tightly sealed.