Iron oxide, or iron trioxide, the chemical formula Fe2O3, is the main constituent of rust and hematite. The main cause of rust is iron metal in the presence of carbon impurities, and the environment of water and oxygen reaction, iron metal will rust.
Molar mass：159.69 g·mol-1
Melting point：1566 °C (1838 K)
Solubility in water：insoluble
Used in electronic industry, communication machine, television, computer and other magnetic raw materials and line output transformers, switching power supply and its high U and high UQ ferrite core
Used as analytical reagents, catalysts and polishes, as well as as ingredients for pigments;
Used for coating and coloring of various kinds of pills and pills
Used as magnetic material, pigment and making reducing agent, polishing agent, catalyst, etc.Used for coating tablets and coloring capsules, etc
A pigment used as an antirust paint.Because the product made of mica iron oxide anti - rust paint anti - water permeability is good, excellent anti - rust performance, can replace red lead
Edible red pigment.Japan for red bean rice, konjac powder food.It is used to identify bananas that have been treated with a preservative before.It is used in cat food, dog food and packing materials
Inorganic red pigment is mainly used for transparent coloring of COINS, but also for coloring of paints, inks and plastics
Widely used in paint, rubber, plastic cosmetics, building materials, precision hardware instruments, optical glass, enamel, cultural and educational supplies, leather, magnetic alloy and high alloy steel coloring;Mainly used as magnetic materials, pigments, polishing agents, catalysts, etc., but also used in telecommunications, instrumentation industry;Mainly used as magnetic materials, pigments, polishing agents, catalysts, etc., also used in telecommunications, instrumentation industry inorganic red pigment.