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Glycerol Structure


Chemical Properties

Melting point 20 °C(lit.)
Boiling point 290 °C
Density  1.25 g/mL(lit.)
vapor density  3.1 (vs air)
vapor pressure  <1 mm Hg ( 20 °C)
refractive index  n20/D 1.474(lit.)
Flash point 320 °F
storage temp.  Store at +5°C to +30°C.
solubility  H2O: 5 M at 20 °C, clear, colorless
pka 14.15(at 25℃)
form  Viscous Liquid
color  APHA: ≤10
Specific Gravity 1.265 (15/15℃)1.262
Odor Odorless.
PH Range 5.5 - 8
PH 5.5-8 (25℃, 5M in H2O)
explosive limit 2.6-11.3%(V)
Water Solubility  >500 g/L (20 ºC)
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: 0.05
λ: 280 nm Amax: 0.04
Merck  14,4484
JECFA Number 909
BRN  635685
Exposure limits OSHA: TWA 15 mg/m3; TWA 5 mg/m3
Stability Stable. Incompatible with perchloric acid, lead oxide, acetic anhydride, nitrobenzene, chlorine, peroxides, strong acids, strong bases. Combustible.
CAS DataBase Reference 56-81-5(CAS DataBase Reference)
FDA 21 CFR 178.3500; 175.300; 175.320; 177.2800
Substances Added to Food (formerly EAFUS) GLYCERIN
SCOGS (Select Committee on GRAS Substances) Glycerin and Glycerides
EWG's Food Scores 1
NIST Chemistry Reference 1,2,3-Propanetriol(56-81-5)
ATC code A06AG04,A06AX01
EPA Substance Registry System Glycerine (56-81-5)


Signal wordDanger
Hazard statements H320-H225-H302+H312+H332-H315-H319
Precautionary statements P264-P305+P351+P338+P337+P313-P280i-P337+P313-P210-P261-P280-P305+P351+P338-P370+P378-P403+P235
Hazard Codes  F,Xn
Risk Statements  36-20/21/22-11
Safety Statements  24/25-39-26
RIDADR  UN 1282 3/PG 2
WGK Germany  1
RTECS  MA8050000
Autoignition Temperature 698 °F
HS Code  29054500
Hazardous Substances Data 56-81-5(Hazardous Substances Data)
Toxicity LD50 in rats (ml/kg): >20 orally; 4.4 i.v. (Bartsch)
NFPA 704:
1 0

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