1,nano titanium dioxid 2, ISO and SGS certificate 3,rutile and anatase Product name: Titanium ... powder, insoluble in water, soluble in hot and concentrated strong acid and alkali, having the good chemical stability; It has strong ... Soluble Matter, % 0.5max 0.2 maxSolution of acid, %0.5max 0.5 max ISO certificate nano titanium dioxide used for paper