Property:White powder,density: 5.606,melting point 1975℃.It is an amphoteric oxide, insoluble in water or ethanol, soluble in acid solution .At high temperature the color is yellow,after cooling the color turns white again.
Use:Widely used in rubber,enamel, paint, phosphating solution, printing ink, cables, electronics, paper, medicine, matches, cosmetics,etc.
Item | Technical requirements |
Zinc oxide(dry)% | ≥99.7 |
Metal(Zn) % | ----- |
Lead oxide(PbO) % | ≤0.037 |
Copper oxide(CuO) % | ≤0.0002 |
Manganese(Mn )% | ≤0.0001 |
Hydrochloric acid insuluble substance% | ≤0.006 |
Loss on ignition % | ≤0.2 |
Water soluble % | ≤0.1 |
105℃ volatile % | ≤0.3 |