IRON OXIDE RED(130) Specifications: Fe2O3: 96%min Moisture: 1.0%max Soluble matter in water: 0.5%max Oil absorption: 25%max Loss on ignition: 4.0%max Residue after sifting (through 320 mesh): 0.3% max Properties:Excellent in tinting strength and hiding power,fastness to light heat,resistance to acids and alkalis. Uses:Paints,construction material,tinting plastic products. IRON OXIDE YELLOW(313) Specification: Fe2O3 :85%min Water content: 1%max Salt soluble in water: 0.5%max Absorption of oil: 35%max Fineness:passing through 325 mesh with residue: 0.3%max Uses:Essentially used in cement products,building industry,rubber products and as coloring material for paint and lacquer,and intermediate for iron oxide pigments,etc. IRON OXIDE BLACK Specifications: Fe3O4: 95%min Moisture:1.0%max Soluble matter in water:0.5%max Oil absorption:25%max Residue(320 mesh) 0.3%max Uses: Paint,printing ink,rubber,plastics,construction fault detection in metal etc.