... powder,insoluble in water,soluble in hot and concentrated strong acid and alkali,having the good chemical stability. White ... powder,insoluble in water,soluble in hot and concentrated strong acid and alkali,having the good chemical stability.It ... ,ink,paper making,plastics,rubber,artificial fiber,welding unit,enamel,electric appliances and construction material etc. Titanium Dioxide Anatase/Rutile