Karn Chem - Sodium Thiosulphate Anhydrous

Sodium Thiosulphate Anhydrous (Na2S2O3), M.W.: 158 g/mol.11 CAS No. 7772-98-7, Sodium Thyposulphite.

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Physical Appearance: White free flowing powder Free from lunps and externals visibal impurities.
Appearance of Solution: A 20% solution in distilled water should be clear and colourless
Assay as Na2S2O3: 97.0% Min. W/W.
PH of 10% Solution: 6.5 to 8.5 at room temp.
Sulphide as Na2S: 0.002% Max.
Insolubels mater as Ca, Mg and NH4OH: 0.4 % Max.
Iron as Fe: 0.005 % Max.
Heavy Metals as Pb: 0.005% Max.
Packing: 25kg / 50kg / 50Lb

Specifications