food coloring, e171. titanium dioxide, tio2

titanium dioxide chemical powder heap texture inscription banned food additives e171 dry white mineral compound oxide alimentary pigment titania phosphonic acid petri dish colorants cosmetic ingredient chemistry word nutritional supplement science substance makeup toothpastes formula tio2 pw6 77891 zinc coloring number consumption synthetic pure catalysts adsorption paints products thickener e171 scattered dark stone surface tio2 present paint