... min3,Appearance white powder4,Use for Agriculture GradeSpecificationsZinc Sulphate HeptaZn 22% minPb 0.002% maxAs 0. ... Oxide Green,Sodium Bichromate,Chrome Acid,Magnesium Sulphate,Sodium Metabisulphate,Kieserite,Magnesium Carbonate Light,Magnesium ... Nitrate,MagnesiumChloride,Calcium Carbonate Light,Ferrous SulphateMono(Powder/Granular),Ferrous Carbonate,Corn Starch,Sorbitol,Sodium Thiosulphate,Sodium ...