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Chemical database: Iron(III) oxide

chemistry tutorials - iron oxide

Chemical formula Fe2O3
Molar mass 159.69 g mol -1
Density 5.24 g cm -3
Melting point decomposition (~ 1566 °C)
Boiling point -
Solubility insoluble in water
CAS number 1309-37-1
Hazards chemistry tutorials - iron(III) oxide - additional data: (R:36/37/38)(S:26)

Iron(III) oxide is an inorganic compound that comes in form of a red to brown colored solid, i.e. powder. This compound can also be found in nature, in form of a mineral known as hematite, which is one of the most important minerals of iron. This compound is mainly used for the production of iron. It is also used for polishing in the jewelry industry and in the production of lenses (it is slowly being replaced by cerium oxide). It is a main component of thermite, and it is also used as a pigment. It has also been used to make floppy disks (the particles of Fe2O3 can be magnetized and because of that, they can store binary data), etc.

Iron(III) oxide can be bought in shops that sell equipment for polishing and grinding devices, and in chemical selling companies.


  Acetic acid
  Acetylsalicylic acid
  Ammonium nitrate
  Calcium carbide
  Calcium carbonate
  Calcium hydroxide
  Calcium oxide
  Hydrochloric acid
  Hydrogen peroxide
  Iron(III) oxide
  Lithium carbonate
  Methyl ethyl ketone
  Nitric acid
  Potassium carbonate
  Potassium chlorate
  Potassium chloride
  Potassium metabisulphite
  Potassium nitrate
  Potassium permanganate
  Sodium acetate
  Sodium benzoate
  Sodium bicarbonate
  Sodium bromide
  Sodium carbonate
  Sodium chloride
  Sodium hydroxide
  Sodium hypochlorite
  Sulphuric acid
  Trichloroisocyanuric acid