... .tech grade 3.low price and delivery immediately Zinc Oxide White Powder 99.7% Packing:25kg pp bag,20MT/20'FCL ... .4%max 0.3%max2. Property: Hexagonal crystal of white or powder, no smell, be insoluble in water , alcohol , dissolve in acid ... sample,best price.4,Small quantity is welcomed Zinc Oxide white powder (factory)