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G7893

Sigma-Aldrich

Glycerol

ACS reagent, ≥99.5%

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Synonym(s):
1,2,3-Propanetriol, Glycerin
Linear Formula:
HOCH2CH(OH)CH2OH
CAS Number:
56-81-5
Molecular Weight:
92.09
Beilstein:
635685
EC Number:
200-289-5
MDL number:
MFCD00004722
PubChem Substance ID:
329799969

grade

ACS reagent

Quality Level

200

vapor density

3.1 (vs air)

vapor pressure

<1 mmHg ( 20 °C)

Assay

≥99.5%

form

viscous liquid

autoignition temp.

698 °F

expl. lim.

2.6-11.3 %

technique(s)

electrophoresis: suitable

impurities

Acrolein and glucose, passes test
 Fatty acid esters, passes test
 H2SO4, passes test (darkened)
 Neutrality, passes test
≤0.003% Chlorinated compounds (as Cl)
≤0.500% Water (H2O)

ign. residue

≤0.0050%

color

APHA: ≤10

refractive index

n20/D 1.474 (lit.)

pH

5.5-8

bp

182 °C/20 mmHg (lit.)

mp

20 °C (lit.)

density

1.25 g/mL (lit.)

anion traces

sulfate (SO42-): passes test

cation traces

heavy metals (as Pb): ≤2 ppm

SMILES string

OCC(O)CO

InChI

1S/C3H8O3/c4-1-3(6)2-5/h3-6H,1-2H2

InChI key

PEDCQBHIVMGVHV-UHFFFAOYSA-N

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General description

Glycerol, also known as Glycerin, is a sugar alcohol. It is a viscous liquid that is odorless, colorless, and hygroscopic in nature. It is highly soluble in water and can also react with aldehydes, ketones, acetic acid, methyl, and ethyl acetates forming acetals, cetals, and glycerine acetates. It finds numerous applications in the food, pharmaceutical, and cosmetic sectors.

Application

Glycerol is used as a starting material or reactant in chemical synthesis.
Glycerol is used both in sample preparation and gel formation for polyacrylamide gel electrophoresis. Glycerol (5-10%) increases the density of a sample so that the sample will layer at the bottom of a gel′s sample well. Glycerol is also used to aid in casting gradient gels and as a protein stabilizer and storage buffer component.

Other Notes

Go to our BioRenewable Alternative Glycerol − 911038

greener alternative product

Product No.
Description
Pricing

Storage Class Code

10 - Combustible liquids

WGK

WGK 1

Flash Point(F)

390.2 °F - Pensky-Martens closed cup

Flash Point(C)

199 °C - Pensky-Martens closed cup

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  5. What is the viscosity of glycerol?

    The viscosity of glycerol is 648 Centistokes at 20 Deg C (68 Deg F).

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