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Ethylene glycol Structure

Ethylene glycol

Chemical Properties

Melting point -13 °C (lit.)
Boiling point 195-198 °C
Density  1.113 g/mL at 25 °C (lit.)
vapor density  2.1 (vs air)
vapor pressure  0.08 mm Hg ( 20 °C)
refractive index  n20/D 1.431(lit.)
Flash point 230 °F
storage temp.  2-8°C
solubility  water: miscible
form  Viscous Liquid
pka 14.22(at 25℃)
color  blue
Odor Odorless
Relative polarity 0.79
PH 6-7.5 (100g/l, H2O, 20℃)
explosive limit 3.2%(V)
Water Solubility  miscible
FreezingPoint  -11.5℃
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: ≤0.03
λ: 280 nm Amax: ≤0.01
Merck  14,3798
BRN  505945
Exposure limits Ceiling limit in air for vapor and mist 50 ppm (~125 mg/m3) (ACGIH); TWA 10 mg/m3 (particulates) (MSHA).
Dielectric constant 37.0(20℃)
LogP -1.36 at 25℃
CAS DataBase Reference 107-21-1(CAS DataBase Reference)
NIST Chemistry Reference 1,2-Ethanediol(107-21-1)
EPA Substance Registry System Ethylene glycol (107-21-1)

Safety Information

Hazard Codes  Xn
Risk Statements  22-36-41
Safety Statements  26-39-36/37/39
WGK Germany  3
RTECS  KW2975000
Autoignition Temperature 752 °F
TSCA  Yes
HS Code  29053100
Hazardous Substances Data 107-21-1(Hazardous Substances Data)
Toxicity LD50 in rats, guinea pigs (g/kg): 8.54, 6.61 orally (Smyth); in mice (ml/kg): 13.79 orally (Bornmann)

MSDS

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