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Topic summary

Ethylene glycol

Names IUPAC names
Ethylene glycol
Ethane-1,2-diol
Preferred IUPAC name
Ethane-1,2-diol
Other names
  • Ethylene glycol
  • 1,2-Ethanediol
  • Ethylene alcohol
  • Hypodicarbonous acid
  • Monoethylene glycol
  • 1,2-Dihydroxyethane
  • Glycol solvent
Identifiers
3D model (JSmol)
Abbreviations MEG 505945 ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.003.159EC Number
  • 203-473-3
943 KEGG
MeSHEthylene+glycol
RTECS number
  • KW2975000
UNII
UN number3082
  • InChI=1S/C2H6O2/c3-1-2-4/h3-4H,1-2H2
    Key: LYCAIKOWRPUZTN-UHFFFAOYSA-N
  • InChI=1/C2H6O2/c3-1-2-4/h3-4H,1-2H2
    Key: LYCAIKOWRPUZTN-UHFFFAOYAD
  • OCCO
Properties C2H6O2Molar mass62.068 g·mol Appearance colorless liquid OdorOdorless Density1.1132 g/cm (0.04022 lb/cu in) Melting point−12.9 °C (8.8 °F; 260.2 K) Boiling point197.3 °C (387.1 °F; 470.4 K) MiscibleSolubilitySoluble in alcohols, ethyl acetate, THF, and dioxane. Miscible with DCM and slightly miscible with diethyl ether. Not miscible with toluene or hexanes. log P−1.69 Vapor pressure7.99 Pa (20 °C) Viscosity1.61×10 Pa·s Thermochemistry 149.5 J/(mol·K) 166.9 J/(mol·K) −460 kJ/mol Hazards Occupational safety and health (OHS/OSH):
Main hazards
Harmful, produces poisonous oxalic acid when ingested, flammable GHS labelling: WarningH302, H373P260, P264, P270, P301+P312, P302, P314, P330, P501NFPA 704 (fire diamond)
2
1
0
Flash point111 °C (232 °F; 384 K) closed cup 410 °C (770 °F; 683 K) Explosive limits3.2–15.2% NIOSH (US health exposure limits):
PEL (Permissible)
None
REL (Recommended)
None established
IDLH (Immediate danger)
None Safety data sheet (SDS) External SDS 1

External SDS 2

Related compounds
Related diols
Supplementary data page Ethylene glycol (data page)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound with the formula (CH2OH)2. It is the simplest vicinal diol. 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, flammable, viscous liquid. It has a sweet taste but is toxic in high concentrations.

Wikipedia source