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Glycerol

Test Specification...BP
Characters It occurs as syrupy liquid, unctuous to the touch, colourless or almost colourless, clear, very  hygroscopic
Identification Test (A) Test (B) Test (C) Test (D) (a) Refractive Index. (b) Infrared Absorption Spectrophotometry. (c) Specified test. (d)Specified test. The blue color does not diffuse into the lower layer.
Solubility Miscible with water and with ethanol (96 per cent), slightly soluble in acetone, practically insoluble in fatty oils and in essential oils.
Appearance of solution Solution is clear and colorless.
Acidity or alkalinity Specified test.
Refractive Index Between 1.470 to 1.475
Aldehydes Maximum 10ppm.
Esters Specified test.
Impurity A and related substances Impurity A Any other impurity with a retention time less than the retention time of glycerol Total of all impurities with retention times greater than the retention time of  glycerol Disregard Limit Maximum 0.1% Maximum 0.1% Maximum 0.5% Maximum 0.05%
Halogenated Compounds Maximum 35ppm.
Sugars Specified test. The solution remains blue and no precipitate is formed.
Chlorides Maximum 10ppm.
Heavy metals Maximum 5ppm.
Water Maximum 2.0%
Sulfated ash Maximum 0.01%
Assay Not less than 98.0% and not more than 101% for anhydrous substance.
Test Specification...FCC
Characters It occurs as a clear, colorless, viscous liquid
Identification

Test (A)

(a)Infrared absorption spectrophotometry.
Solubility It is miscible with water and with alcohol and it is insoluble in chloroform, in

ether, and in fixed and volatile oils.

Chlorinated Compounds (as Cl) Maximum 0.003%
Color Passes Test.
Fatty Acids and Esters Passes Test. (limit about 0.1%, calculated

as butyric acid)

Lead Maximum 1 mg/kg
Readily Carbonizable Substances Passes Test.
Residue on Ignition Maximum 0.01%
Specific Gravity Min. 1.249
Chlorides Not more than 10 ppm
Assay Not less than 95.0% and not more than 100.5% of C3H8O3

Shelf life, Storage and Packing
It should be stored in a segregated area in a cool and ventilated place away from combustible materials. Keep in a tightly closed container, sealed until ready for use. It is packed in 25kg or 50kg HDPE bags or drums as required.

Other
GLP, cGMP (FDA) Approved, ISO 9001, ISO 14001, ISO 45001, ISO 17025, ISO 22000, FSSC 22000, FSSAI, Halal and Kosher certified.
We observe WHO Good manufacturing practice and Good laboratory practice.

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