56-81-5 structure, C3H8O3

glycerol

CAS No.

56-81-5

Formula:

C3H8O3

Basic Info

Glycerol (also called glycerine or glycerin; see spelling differences) is a simple polyol compound. It is a colorless, odorless, viscous liquid that is sweet-tasting and non-toxic. The glycerol backbone is found in all lipids known as triglycerides. It is widely used in the food industry as a sweetener and humectant and in pharmaceutical formulations. Glycerol has three hydroxyl groups that are responsible for its solubility in water and its hygroscopic nature.

Formula
C3H8O3
Molecular Weight
92.0938
Exact Mass
92.0473
LogP
-1.6681
PSA
60.69
Synonyms

Glycerin

1,2,3-trihydroxypropane

Glycerol

1,2,3-Propanetriol

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Properties

Appearance & Physical State
Clear, colorless, viscous liquid
Density
1.25
Boiling Point
290ºC
Melting Point
18ºC
Flash Point
160ºC
Refractive Index
1.452-1.475
Water Solubility
>500 g/L (20 ºC)
Stability
Stable. Incompatible with perchloric acid, lead oxide, acetic anhydride, nitrobenzene, chlorine, peroxides, strong acids, strong bases. Combustible.
Storage Condition
2-8ºC
Vapor Density
3.1 (vs air)
Vapor Pressure
<1 mm Hg ( 20 °C)

Safety Info

RTECS
MA8050000
Safety Statements
S24/25-S39-S26
WGK Germany
1
Risk Statements
R36; R20/21/22; R11
HS Code
2905450000
RIDADR
UN 1282 3/PG 2
Hazard Codes

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