In plastic, rubber, paint and chemical fiber was used as a reinforcing agent. At the same time, the product is sun-proof, and co It’s very important Inorganic Color Pigments, which have minimal toxicity. The main varieties conclude Iron Oxide Red ( Fe2O3 ), Iron Oxide Yellow ( Fe2O3·H2O ), Iron Oxide Black ( Fe3O4 ). There is a high hiding power and coloring power. Do not dissolved in alkali and ...