Sodium Metabisulphite BP USP NF IP Reagent FCC Food Grade Manufacturers Exporters
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Sodium Metabisulphite

Test Specification...BP
Characters It occurs as a white or almost white, crystalline powder or colorless crystals
Identification

Test(A)

Test(B)

Test(C)

(a)It complies with the test for pH-3.5 to 5.0

(b)Specified test. The solution is colorless and gives reaction of sulfates

(c) It gives positive reaction of sodium

Solubility Freely soluble in water, slightly soluble in ethanol (96%)
Appearance of Solution The solution is clear and colorless
pH Between 3.5 to 5.0
Thiosulfates Specified Test. The solution remains clear for not less than 15 min
Arsenic Not more than 5 ppm
Iron Not more than 20 ppm
Heavy metals Not more than 20 ppm
Assay Not less than 95.0% and not more than the equivalent of 100.5% of Na2S2O5
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%
Test Specification...USP
Appearance A white or almost white, crystalline powder or colorless crystals
Solubility Freely soluble in water, slightly soluble in alcohol
Appearance of solution The solution is clear and colorless
Chloride Maximum 0.05%
Iron Maximum 0.002%
Thiosulphate Maximum 0.05%
Heavy metals Maximum 0.002%
Residual solvents Passes test
Assay Not less than 65% and not less than 67.4%

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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