Scandium Oxide With Alkalis

Scandium oxide is a white amorphous powder, Sc2O3, used as a source of scandium and in manufacturing ceramics. Also called scandia. Heat and thermal shock resistance in high temperature systems, electronic ceramics and as a helper material in glass composition.

Scandium oxide is a lightweight refractory oxide. It comes from several sources including minerals, certain uranium tailings and some phosphate ores. Scandium oxide is suitable for the high index component of UV, AR and bandpass coatings due to its high index value, transparency, and layer hardness make High damage thresholds have been reported for combinations with silicon dioxide or magnesium fluoride for use in AR. With alkalis it forms scandate salts, unlike its higher homologues yttrium oxide and lanthanum oxide, for example forming K3Sc(OH)6 with KOH.

Scandium are widely used in making Scandium-Aluminium alloy. In this, scandium shows more similarity with aluminium oxide.

Scandium oxide is a high melting white solid used in high-temperature systems (for its resistance to heat and thermal shock), electronic ceramics, and glass composition (as a helper material). It is converted into the Lewis acid scandium(III) triflate by reaction with triflic acid.