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Triethylene glycol Structure

Triethylene glycol

Chemical Properties

Melting point −7 °C(lit.)
Boiling point 125-127 °C0.1 mm Hg(lit.)
Density  1.124 g/mL at 20 °C(lit.)
vapor density  5.2 (vs air)
vapor pressure  <0.01 mm Hg ( 20 °C)
refractive index  n20/D 1.455(lit.)
Flash point 165 °C
storage temp.  Store below +30°C.
solubility  H2O: 50 mg/mL at 20 °C, clear, colorless
pka 14.06±0.10(Predicted)
form  Viscous Liquid
color  Clear very slightly yellow
Odor Very mild, sweet.
PH 5.5-7.0 (25℃, 50mg/mL in H2O)
explosive limit 0.9-9.2%(V)
Water Solubility  SOLUBLE
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: 0.06
λ: 280 nm Amax: 0.03
Merck  14,9670
BRN  969357
Dielectric constant 2.4(25℃)
Stability Stable. Combustible. Incompatible with strong oxidizing agents.
InChIKey ZIBGPFATKBEMQZ-UHFFFAOYSA-N
LogP -1.75 at 25℃
CAS DataBase Reference 112-27-6(CAS DataBase Reference)
NIST Chemistry Reference Triethylene glycol(112-27-6)
EPA Substance Registry System Triethylene glycol (112-27-6)

Safety Information

Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  1
RTECS  YE4550000
Autoignition Temperature 699 °F
TSCA  Yes
HS Code  29094919
Hazardous Substances Data 112-27-6(Hazardous Substances Data)
Toxicity LD50 in mice, rats (g/kg): 21, 15-22 orally; 7.3-9.5, 11.7 i.v. (Stenger)

MSDS

Usage And Synthesis

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