food coloring, e171. white chemical powder in ceramic spoon on blue background, top view. titanium dioxide, tio2. pigment present

titanium dioxide pw6 77891 food coloring harmful additive e171 dry powder heap white oxide chemical alimentary pigment titania thickening agent carcinogen banned zinc acid toothpastes formula tio2 number consumption chemistry makeup safety cosmetic nutritional supplement science compound blue research texture synthetic pure paints paper products thickener alumina silica medicine industry ceramic spoon background top view present paint e171 view tio2 products