... Monohydrate Industrial Grade 1)Zn:35%,35.5% 2)ZnSO4:98%,99% 3)Form:White crystal powder 4 ... insoluble in acetone, loose crystal water at 280°C and to be anhydride, decompose as zinc oxide(ZnO ... )and sulfur trioxide(SO3)at 740°C.2.Usage: Technical-grade Zinc Sulphate Monohydrate is widely ... purity, easy dissolve and active in chemical reaction.2)Lily-white, has no side effection to colour.3 ...