IUPAC name:Iron Oxide Molecular formuIa:Fe2O3 Fe3O4 CAS number :Fe2O3 1309-37-1 Fe3O4 1227-89-3 ron Oxide Appearance:Red/brown/black/yellow/ blue powder Item Iron Oxide Red 130 Iron oxide Red 190 Iron oxide Brown 610 Iron Oxide Black 780 Iron oxide Yellow 313 lron Oxide Blue Fe2O3/Fe3O4≥% 96 95 92 93 86 105°C Moisture ≤% 1 1 1 1 1 1 Water soluble salts≤% 0.3 0.3 0.5 0.5 0.3 0.5 Residue on 45um ≤% 0.2 0.2 0.3 0.3 0.3 0.3 PH-value 3.5-8 3.5-8 4-7 5-8 3.5-7 Oil absorption 15-25 15-25 20-30 12-25 25-35 Tinting strength% 95-105 95-105 95-105 95-105 95-105 95-105 Density approx/ cm3 5.0-5.1 5.0-5.1 4.8 4.5-5.0 4.0-4.3 packing:Three kraft paper or plastic woven sack packaging, 25 kg per bag 1. Iron Oxide pigment is used as dye or colorant in various prefabricated concrete parts and architectural products and materials. It is directly added into cement to color up various indoor and outdoor cement surfaces, i.e.. walls , terraces, Ceilings, pillars, corridors, roads, car-park, stairs, stations, etc, as well as Various building ceramic and glazed ceramics, i.e. 2. Iron Oxide pigment is also applicable to various coatings and protective Materials, including water exterior coating and powder coatings, as well as Various oil paints, such as epoxy. Alkyd, amidogen, and some other primer Product usage and finish paints. It can be used in toy paints, decorative paints, and furniture, Lacquers, electrophoresis paints, enameled paints etc. 3. Iron Oxide pigment is used as coloring materials for plastic products. 1ike thermosetting plastic and thermoplastic, as well as in rubber products, such as tyre tubes for automobiles. 4. Iron oxide is used as catalyst. It can be used in metal smelting, 1ight manufacturing, glass, precious stone, and metal polish.