... Sulphate Hepta 2,Purity Zn 22% min 3,Appearance white powder 4,Use for Agriculture Grade 1,Product name Zinc ... Use for Agriculture GradeSpecificationsZinc Sulphate HeptaZn 22% minPb 0.002% maxAs 0.002% maxPacking In 25 kg bagsTangshan C& ... ,Calcium Carbonate Light,Ferrous SulphateMono(Powder/Granular),Ferrous Carbonate,Corn Starch,Sorbitol,Sodium Thiosulphate,Sodium Benzoate, and Benzoate Acid.Besides ...