| IUPAC name
| Other names
|Molar mass||225.81 g/mol|
|Melting point||2,425 °C (4,397 °F; 2,698 K)|
|Boiling point||4,300 °C (7,770 °F; 4,570 K)|
|Solubility||Reacts with acids|
|Vapor pressure||~0 mmHg|
Std enthalpy of
|Safety data sheet||Sigma-Aldrich|
|Lethal dose or concentration (LD, LC):|
LD50 (Median dose)
| >10,000 mg/kg (rat, oral)|
>6,000 mg/kg (mouse, oral)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Yttrium oxide, also known as yttria, is a chemical compound with the formula Y2O3.
Yttrium(III) oxide is widely used to make the high temperature superconductor YBa2Cu3O7, known as "1-2-3" to indicate the ratio of the metal constituents.
Yttrium(III) oxide is a white solid.
Yttrium(III) oxide is sold by lab suppliers.
Yttrium oxide can be found along with europium oxide in the TV screens, though the amount is very small.
Yttriaite-(Y), approved as a new mineral species in 2010, is the natural form of yttria. It is exceedingly rare, occurring as inclusions in native tungsten particles in a placer deposit of the Bol’shaja Pol’ja (Russian: Большая Полья) river, Prepolar Ural, Siberia.
Can be prepared by burning yttrium metal in an oxygen-rich atmosphere.
- Dental ceramic
- YBCO superconductors
Yttrium oxide shows low toxicity, though it's still irritant and should be handled with care.
In closed clean bottles.
Recycle it or dump it in trash.