... insoluble in water, soluble in hot and concentrated strong acid and alkali, having the good chemical stability; ... to make spongy titanium, alloy of titanium and iron and hard alloy, etc. 4) It can ... rubber, printing, dying, cosmetics, medicine fillings and food additives. Analysis of Titanium Dioxide Results itemtitanium ... Matter, % 0.5max 0.2 maxSolution of acid, %0.5max 0.5 max manufacture white ...