The chemical formula of Yttrium(III) oxide is Y2O3, white powder with yellow color, insoluble in water and alkali, soluble in acid. Mainly used for manufacturing magnetic materials for microwaves and important materials for military applications (single crystals; composite oxides such as yttrium iron garnet and yttrium aluminum garnet), as well as optical glass, ceramic material additives, high brightness phosphors for large screen televisions, and other picture tube coatings.

It is also used to manufacture film capacitors and special refractory materials, as well as magnetic bubble materials for high-pressure mercury lamps, lasers, storage components, etc. The addition of Yttrium(III) oxide during sintering can effectively reduce the grain size of tungsten alloys. It manufactures light sources in infrared spectrometers, gauze covers for acetylene lamps and Gas lighting, color TV tube phosphors, zirconia refractory stabilizers, phosphors, synthetic gem laser crystals, superconducting materials and many cutting-edge applications in the electronic industry.

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