Products – Anmol Chemicals Private Limited

Sodium Metabisulphite IP

Sodium Metabisulphite also known as sodium pyrosulphite is an inorganic compound that is used as a disinfectant, antioxidant and preservative agent. It is used as used as a food additive and is known by the E number E223.


Sodium Metabisulphite is used as a preservative and antioxidant in food. It is also used for wine and beer making, in photography, as an excipient in some tablets such as paracetamol, to precipitate from auric acid, in waste treatment, as a bleaching agent in the production of coconut cream and in the oil and gas industry as a corrosion inhibitor or oxygen scavenger.


Chemical Name: Sodium Metabisulphite
Synonyms: Sodium Pyrosulphite
Mol. Formula: Na2S2O5
Mol. Weight: 190.11 g/mol
CAS No.: 7681-57-4


General Specifications

Test…… Specification……IP
Appearance Colorless, prismatic crystals or a white or creamy white powder; odor, sulphurous.
Solubility Freely soluble in water, slightly soluble in alcohol
Appearance of solution The solution is clear and colorless
Arsenic Maximum 4ppm
Heavy metals Maximum 20ppm
Iron 40ppm
Thiosulphate Passes test
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.


We Manufacture Bulk Dugs/API, Excipients, pharmaceuticals (IP/BP/USP/NF/PH. EUR./JP), Speciality Chemicals (Pure/AR/ACS), mineral fortifiers (FCC). our manufacturing facility is GLP, GMP (FDA) approved, ISO 9001, ISO 14001, ISO 22000, FSSC 22000, FSSAI, kosher, halal, COPP and WHO-GMP certified.

Good Manufacturing Practice Certified by World Health Organization (WHO-GMP)
Written Confirmation Certification (WC)
Good Manufacturing Practice (EXCiPACT cGMP)
Good Manufacturing Practice (cGMP)
Good Laboratory Practice (GLP)