Glycerin USP 200KG Go Back

CASR

: 56-81-5

Molecular Formula

: (CH2OH)2CHOH

Molecular Weight

: 92.09
Specifications  
Description: Clear, colorless, syrupy liquid, having a sweet taste. Has not more than a slight characteristic odor, which is neither harsh nor disagreeable. Is hygroscopic. Its solutions are neutral to litmus.
Solubility: Miscible with water and with alcohol. Insoluble in chloroform, in ether, and in fixed and volatile oils.
Identification A (By IR): IR spectra of the sample should be concomitant with IR spectra of the standard
Identification B (Diethylene glycol): NMT 0.10%
Identification B (Ethylene glycol): NMT 0.10%
Identification C (By GC Chromatogram): The retention time of the glycerin peak of the sample solution corresponds to that obtained in the standard solution
Assay (Anhydrous basis): 99.0% - 101.0%
Chloride (Cl): NMT 10ppm
Sulphate (SO4): NMT 20ppm
Residue on ignition: 0.01% max
Related compounds : Individual impurity: NMT 0.1%
Related compounds : Total impurities: NMT 1.0%
Chlorinated compounds: NMT 30ppm of Cl
Fatty acids and esters: NMT 1.0ml of 0.5N sodium hydroxide shall consume.
Color: Color of the sample should not be darker than the color of the standard .
Specific gravity, 25°C: NLT 1.249
Water: NMT 5.0%
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