Sodium Sulphite USP

Test Specification…USP
Appearance It occurs as white or almost white powder.
Color and clarity of solution The solution is clear and colorless
Heavy metals Maximum 10ppm
Iron Maximum 10ppm
Selenium Not more than 10ppm
Thiosulphates Maximum 0.1%
Zinc Maximum 25ppm
Spectrophotometry and Light Scattering Not more than 25 micro-gm per gm
Assay Not less than 95% and not more than 100.5%

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.


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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