1. Property: White powder, odourless, relative density 5.606, stable under normal temperature. Insoluble in water and alcohol, soluble in acid, alkaki and amkonium solution. 2. Zinc oxide grades : indirect process zinc oxide, direct process zinc oxide, etc. Usage: used in rubber, dope cable, porcelain enamel, oil, pottery and porcelain, glass and other chemical industry. In polyethylene film bag with outer polypropylene woven bag, 25kg, 50kg, big sack bag or as required by the customer