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GLYCEROL AR Confirming to USP 1,2,3-Propanetriol; Glycerin

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  • Warranty 1 year
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Description

Article No. 00156 Grade AR
Purity 99.5% CAS No. 56-81-5
Molecular Formula C3H8O3 Molecular Weight 92.09
H.S. Code 2905.4500 Shelf Life 60 Months

Physical Properties

Physical state at 20 °C Liquid Colour Clear colorless
Odour Odorless pH value 5.5 – 8
Melting point/ Freezing point [°C] 20 °C Auto-ignition temperature [°C] 370°C
Flash point [°C] 160 °C Boiling point [°C] 182 °C
Vapour pressure mm/Hg 0.0033 mm Hg at 50 °C Vapour density 3.18
Density [g/cm3] 1.25 Solubility in water [% weight] Soluble in water
Explosion limits -lower [%] 0.90%

Specifications

Appearance Clear colorless viscous liquid Assay (on anhydrous basis) Min 99.5%
Fatty acids and esters Max 1.0 ml of 0.5N NaOH consumed Colour scale To Pass USP test
Chloride (Cl) Max 0.001% Sulphate (SO4) Max 0.002%
Chlorinated compounds Max 0.003% Moisture content Max 0.5%
Heavy metal (as Pb) Max 0.0005% Residue on ignition Max 0.01%
Specific gravity (at 25°C) Min 1.249 Total impurities (Chromatographic including Diethylene glycol) Max 1.0%
Individual impurities Max 0.1%

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