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Zinc sulphate - is the inorganic compound with the formula ZnSO4 as well as any of three hydrates. It was historically known as "white vitriol". All of the various forms are colourless solids.
Z 1315 (OTTO) Zinc sulphate, 99% Cas 7446-20-0 - used in man-made fibers, electrolysis, electroplating, pesticide and production of zinc salt, etc.