Lithopone is a white powder, a mixture of barium sulfate and zinc sulfide and it was non-toxic, tasteless, odorless,and insoluble in water.It is used as one of the important inorganic Chemicals Pigmentfor its good colouring and hiding power and good weather resistance.In addition,it has a good heat resistance which can improve the weather resistance and anti-algae,and excellent cover on the white power.