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Ethylene glycol

Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound with the formula (CH2OH)2. It is mainly used for two purposes, as a raw material in the manufacture of polyester fibers and for antifreeze formulations. It is an odorless, colorless, sweet-tasting, viscous liquid. Ethylene glycol is moderately toxic.

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Further Information

Names

Preferred IUPAC name: Ethane-1,2-diol

Other names

Ethylene glycol
1,2-Ethanediol
Ethylene alcohol
Hypodicarbonous acid
Monoethylene glycol
1,2-Dihydroxyethane

Identifiers

CAS Number: 107-21-1

JSmol: Interactive image

3DMet: B00278

Abbreviations: MEG

Beilstein Reference: 505945

ChEBI: CHEBI:30742

ChEMBL: ChEMBL457299

ChemSpider: 13835235

ECHA InfoCard: 100.003.159

EC Number: 203-473-3

Gmelin Reference: 943

KEGG: C01380

MeSH: Ethylene+glycol

PubChem: 174

RTECS number: KW2975000

UNII: FC72KVT52F

UN number: 3082

Properties

Chemical formula: C2H6O2

Molar mass: 62.07 g·mol

Appearance: Clear, colorless liquid

Odor: Odorless

Density: 1.1132 g/cm

Melting point: −12.9 °C (8.8 °F; 260.2 K)

Boiling point: 197.3 °C (387.1 °F; 470.4 K)

Solubility in water: Miscible

Solubility: Soluble in most organic solvents

log : -1.69

Vapor pressure: 0.06 mmHg (20 °C)

Viscosity: 1.6110 Pa·s×−2

Hazards

hazards: Harmful

Safety data sheet: See:

GHS pictograms:

GHS signal word: Warning

GHS hazard statements: H302 H373

GHS precautionary statements: P260 P264 P270 P301+312 P314 P330 P501

NFPA 704:

Flash point: 111 °C (232 °F; 384 K) closed cup

Autoignition
temperature: 410 °C (770 °F; 683 K)

Explosive limits: 3.2–15.2%

NIOSH

PEL: None

REL: None established

IDLH: None

Related compounds

diols: Propylene glycol

Supplementary data page

Structure and
properties: n

Thermodynamic
data: Phase behaviour

Spectral data: UV

Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).

Infobox references