SODIUM SULPHITE ANHYDROUS Extra Pure

Short Name: SODIUM SULPHITE ANHYDROUS

Other Names: disodium sulphite, Sulfurous acid disodium salt

Confirming to BP

Chemical Specifications

Appearance : White crystalline powder

Assay (iodometric) : 95 - 100.5%

SO2 : Min 48%

Identity : Passes test

Appearance of solution : Passes test

Thiosulphate (S2O3) : Max 0.04%

Arsenic (As) : Max 0.0002%

Heavy metal (as Pb) : Max 0.001%

Iron (Fe) : Max 0.001%

Copper (Cu) : Max 0.0005%

Selenium (Se) : Max 0.001%

Zinc (Zn) : Max 0.0025%