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

Sodium Meta Bisulphite
SODIUM   METABISULPHITE (Na2S2O5),   M.W. : 190.10 g / mol. CAS No. 7681-57-4
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

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