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Sodium Formaldehyde Bisulphite
Sodium Carbonate Anhydrous
Sodium Sulphite
Sodium Bromide
Potassium Bromide
Sodium Thiosulphate Crystals
Sodium Thiosulphate Anhydrous
Sodium Acetate Trihydrate
Sodium Acetate Anhydrous
Potassh Alum
Ammonium Alum
Sodium Meta Bisulphite

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

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