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Polyvinyl Alcohol

Test Specification...BP
Characters It occurs as a yellowish-white powder or translucent granules.
Identification

Test A

Test B

a. Infrared Absorption Spectrophotometry

b. Viscosity

Solubility Soluble in water, slightly soluble in ethanol, practically insoluble in acetone.
Appearance of solution Solution S is clear and not more intensely coloured than reference solution Y7
pH 4.5 to 6.5 for solution S.
Viscosity 85 % to 115 % of the value stated on the label.
Acid value Not more than 3.0
Ester value 90 % to 110 % of the value stated on the label.
Heavy metals Not more than 10 ppm
Loss on drying Not more than 5.0%
Sulfated ash Not more than 1.0%
Test Specification...USP
Characters Clear, yellowish or brownish, oily liquid.
Solubility It is soluble in water
Viscocity between 85.0% and 115.0%
pH between 5.0 and 8.0
Loss on drying not more than 5.0%
Residue on ignition not more than1.0%
Heavy metals not more than 10 µg per g
Acid Value not more than 3.0
Water-insoluble substance not more than 0.1%
methanol and methyl acetate not more than 1.0%
Organic Volatile impurity Passes test
Residual Solvents Meets the Requirements
Assay Not less than 85% and not more than 115%

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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