Zinc Oxide:

White powder, non-toxic, odorless.  Gender oxide,soluble in acid, alkali and ammonium chloride solution,insoluble in water or ethanol.can absorb carbon dioxide and waterIn the air.sublimation at high temperature if heated to 1800 . Yellow, when cool turn white.As it contains alkaline, therefore can be modulated with oil into the paint, has greater color strength and hiding power.

Zinc Oxide