Characteristic

Iron(II) oxide or ferrous oxide is the inorganic compound with the formula FeO. Its mineral form is known as wüstite. One of several iron oxides, it is a black-colored powder that is sometimes confused with rust, the latter of which consists of hydrated iron(III) oxide (ferric oxide).

Chemical formula:FeO

Molar mass:71.844 g/mol

Appearance:black crystals

Density:5.745 g/cm³

Melting point:1,377 °C (2,511 °F; 1,650 K)

Boiling point:3,414 °C (6,177 °F; 3,687 K)

Solubility in water:Insoluble

Solubility:insoluble in alkali, alcohol dissolves in acid

Magnetic susceptibility (χ):+7200·10⁻⁶ cm³/mol

Refractive index (nD):2.23

Application

In manufacture of green, heat-absorbing glass; in steel manufacture; and as a catalystIron(II) oxide is used in manufacturing of green, heat-absorbing glass; in steel manufacture; and as a catalyst. It is used as a dye or pigment in pottery, glazes and glasses. It finds application as heat-absorbing glass used in buildings and automobiles. It is used as a precursor in the production of steel. It is also used in cosmetics and some tattoo inks. It can also be used for filtering phosphates from home aquaria and acts as a catalyst in a number of industrial and chemical operations.

FeO_MSDS.pdf