Hina chemicals offers a zinc oxide grade called as the red seal used in industries like fertilzers, matchsticks, black rubber compounds and so on. Below mentioned are the Specifications : Zinc as zno 99.5%. Lead as pbo 0.05%. Cadmium as cdo 0.02%. Iron as fe 0.01%. Copper as cu 0.001%. Manganese as mn trace. Chloride as ci cattle food.