E

Ethylene glycol

IUPAC: ethane-1,2-diol

C2H6O2 Organic Compounds CAS 107-21-1
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Quick Reference
Formula / NotationC2H6O2
CAS Number107-21-1
Molecular Weight62.07
Melting Point9 °F (NTP, 1992)
Boiling Point387.7 °F at 760 mmHg (NTP, 1992)
Density1.115 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubilitygreater than or equal to 100 mg/mL at 63.5 °F (NTP, 1992)
AppearanceEthylene glycol is a clear, colorless syrupy liquid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since it is a liqui...
Also Known Asethane-1,2-diol; Ethane-1,2-diol; 107-21-1; 1,2-ethanediol; glycol; monoethylene glycol; 2-hydroxyethanol; 1,2-Dihydroxyethane; Glycol alcohol; Ethylene alcohol
CategoryOrganic Compounds

What is Ethylene glycol?

Ethylene glycol (ingested) can cause developmental toxicity according to The National Toxicology Program.

Formula & Notation

C2H6O2

IUPAC Name: ethane-1,2-diol

Other Names / Synonyms: ethane-1,2-diol; Ethane-1,2-diol; 107-21-1; 1,2-ethanediol; glycol; monoethylene glycol; 2-hydroxyethanol; 1,2-Dihydroxyethane; Glycol alcohol; Ethylene alcohol

Properties & Characteristics

Appearance: Ethylene glycol is a clear, colorless syrupy liquid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since it is a liqui.... Molecular formula: C2H6O2. Molecular weight: 62.07 g/mol. Boiling point: 387.7 °F at 760 mmHg (NTP, 1992). Melting point: 9 °F (NTP, 1992). Density: 1.115 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: greater than or equal to 100 mg/mL at 63.5 °F (NTP, 1992). Vapor pressure: 0.06 mmHg at 68 °F ; 1 mmHg at 127.4 °F (NTP, 1992). LogP: -1.4.

Physical Data

PropertyValue
Melting Point9 °F (NTP, 1992)
Boiling Point387.7 °F at 760 mmHg (NTP, 1992)
Density1.115 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight62.07
Solubilitygreater than or equal to 100 mg/mL at 63.5 °F (NTP, 1992)
AppearanceEthylene glycol is a clear, colorless syrupy liquid. The primary hazard is the threat to the environment. Immediate steps should be taken to limit its spread to the environment. Since it is a liqui...

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Ethylene glycol
Formula C2H6O2
CAS Number 107-21-1
Molecular Weight 62.07
Synonyms ethane-1,2-diol; Ethane-1,2-diol; 107-21-1; 1,2-ethanediol; glycol; monoethylene glycol; 2-hydroxyethanol; 1,2-Dihydroxyethane; Glycol alcohol; Ethylene alcohol

Frequently Asked Questions

Ethylene glycol (ingested) can cause developmental toxicity according to The National Toxicology Program.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.