titanium dioxide, tio2. food additive e171. white chemical powder, chewing gum and pills on blue. titanium dioxide used as pigment

titanium dioxide food additive e171 dry powder heap white chewing gum pills tablets pile oxide chemical alimentary pigment titania phosphonic acid toothpastes formula tio2 pw6 77891 coloring number consumption synthetic pure paints cosmetic products thickener crystal alumina silica medicine industry thickening agent carcinogen banned zinc colorants chemistry nutritional supplement science substance inorganic compound solid mineral blue research texture used present tio2 e171 blue thickener tablets