Indium(III) oxide

Diindium trioxide

Yellow powder

Fixed

7.18 g · cm -3

1910 ° C

Insoluble in water

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Indium ( III) oxide is a chemical compound of indium, and oxygen. The air-stable, pale yellow oxide is a semiconductor.

Production and representation

Indium ( III) oxide is formed at high temperatures in a blue flame from the elements.

And of indium (III ) hydroxide is formed by heating indium ( III) oxide.

Properties

There are two modifications of the light yellow -colored indium (III ) oxide. Stable at normal conditions α - modification is changing under pressure at 1000 ° C in a β - modification to. α - indium ( III) oxide crystallized in a derived from calcium fluoride structure structure, exist in the fluoride blanks. β - indium ( III) oxide having a corundum structure.

Thin film layers of indium (III ) oxide, which are doped with chromium ( In2 xCrxO3 ) exhibit ferromagnetic properties, and among the magnetic semiconductors.

Use

Indium (III ) oxide is mainly used to form indium tin oxide. This is an important component of liquid crystal displays and touch screens.