Karn Chem - Sodium Thiosulphate Crystals

Sodium Thiosulphate Crystals (Na2S2O3.5H2O), M.W. : 248.19 g/mol. CAS No. 10102-17-7. Sodium Hyposulphate Pentanydrate , Hypo.

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Physical Appearance: White Crystals.
Appearance of Solution: A 20% solution in distilled water should be clear and colourless
Assay as Na2S2O3.5H2O: 97.0% Min. W/W.
pH of 10% Solution: 6.5 to 8.5 at Room Temp.
Sulphide as Na2S: 0.002% Max.
Sulphate as So4: 0.1 % 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: 25 Kg / 50Kg / 50Lb

Specifications