| titanium dioxide, titanium oxide, titanic oxide, titania; pentoxide; nitrogen oxide; hydrogen peroxide, peroxide; calcium oxide, quicklime, lime, calx, calcined lime, fluxing lime, unslaked lime, burnt lime; copper oxide; dioxide; ferric oxide; monoxide; peroxide; red lead, minium; silica, silicon oxide, silicon dioxide; sulfur oxide, sulphur oxide; superoxide; trioxide; zinc oxide, flowers of zinc, philosopher's wool; zirconium oxide, zirconia, zirconium dioxide |