Glycerol

InChI key

PEDCQBHIVMGVHV-UHFFFAOYSA-N

InChI

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

SMILES string

OCC(O)CO

agency

meets analytical specifications of BP, meets analytical specifications of E422, meets analytical specifications of Ph. Eur., meets analytical specifications of USP

reg. compliance

meets analytical specifications of FCC

vapor density

3.1 (vs air)

vapor pressure

<1 mmHg ( 20 °C)

grade

puriss.

assay

99.0-101.0% (alkalimetric), 99.0-101.0% (calc. on H₂O free substance)

form

liquid

autoignition temp.

698 °F

quality

meets analytical specification of Ph. Eur., BP, USP, FCC, E422

technique(s)

IR spectroscopy: suitable, electrophoresis: suitable

impurities

acidity or alkalinity, complies, acrolein, glucose and NH₄-compounds, complies, ester, complies, fatty acids and esters, complies, impurities A and related substances (GC), complies, residual solvents, complies, sugar, complies, ≤0.003% free acid (as CH₃COOH), ≤0.2% 1,2,4-butantriole (GC), ≤10 ppm aldehydes (as HCHO), ≤2% water (Karl Fischer), ≤30 ppm halogen compounds (as Cl), ≤5 ppm heavy metals (as Pb)

ign. residue

≤0.01% (as SO₄)

refractive index

n20/D 1.471-1.474, n20/D 1.474 (lit.)

pH

5.5-8

bp

182 °C/20 mmHg (lit.)

mp

20 °C (lit.)

density

1.2580-1.2644 g/mL at 20 °C, ≥1.257 g/mL at 25 °C, 1.25 g/mL (lit.)

anion traces

chloride (Cl^-): ≤10 ppm, sulfate (SO₄^2-): ≤10 ppm

cation traces

As: ≤1 ppm, Cu: ≤0.001%, Pb: ≤1 ppm, Zn: ≤0.001%

suitability

complies for appearance of solution, complies for reaction against H₂SO₄, corresponds for chromatography, passes test for identity (IR)

Quality Level

100