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Karn Chem - Sodium Meta Bisulphite
Sodium Metabisulphite (Na2S2O5), M.W. : 190.10 g / mol. CAS No. 7681-57-4.
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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 Na2S2O5: 96.0 % Min. W/W.
- PH of 10% Solution: 3.5 to 5.5 at room temp.
- Thiosulphate containt: 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: 25kg / 50kg / 50Lb