Sodium Metabisulphite

Sodium Meta BI - Sulphite

(AS PER IS 248 , 1987)

1.Appearance                           : white crystalline powder       

2.Purity as SO2 content           : 62 % to 64 %

   % by mass minimum        

 3.PH. of 5% solution               : 4.5  to 5.52

4.Matter insoluble in water      : 0.1 %

   % by mass max

5.Iron as Fe % by mass max    : 0.02%

6.Heavy metals as leas %        : 0.1 %

    by mass max