Scandium oxide

Cubic

Ia3

A = 985 pm

  • Scandium (III ) oxide
  • Scandiumsesquioxid

White, odorless solid

Fixed

3.86 g · cm -3

2485 ° C

1.9943

Template: Infobox chemical / molecular formula search available

Scandium oxide ( Sc2O3 ) is the product of combustion of elemental scandium in air. This results in the oxidation of scandium to Sc3 at 800 ° C or by annealing of Scandiumsalzen. It is a white powder having a melting point of 2485 ° C.

Properties

Scandium oxide crystallizes in the cubic crystal system in space group Ia3 with the lattice parameters a = 985 pm and 16 formula units per unit cell. In the crystal structure of the Sc3 cations are six- coordinated by oxygen in the form of octahedrons. Structurally, Sc2O3 so that the lanthanide oxides, of the C- type, which is also found in the structures of lanthanide sesquioxides Ln2O3 the general shape of Ln = Dy, Lu and Y.

Use

Scandium oxide is used for the doping of magnetic storage in the computer industry. The magnetization reversal is accelerated, thereby increasing the processing power. It provides the starting material for the production of the metal in this case is dar. scandium scandium (III ) fluoride ( SCF3 ) converted and then reduced to the metal by means of calcium.

Lattice constant CAS registry number PubChem Dysprosium Yttrium CRC Handbook of Chemistry and Physics Canadian Journal of Chemistry Digital Object Identifier Integrated Authority File
711440
de