Ytterbium(III) oxide

Ytterbium(III) oxide
IUPAC name Ytterbium(III) oxide.
Other names Ytterbia diytterbium trioxide ytterbium sesquioxide
Identifiers
CAS number	1314-37-0 Y
Properties
Molecular formula	Yb2O3
Molar mass	394.08 g/mol
Appearance	White solid.
Density	9.17 g/cm3, solid.
Melting point	2355 °C
Boiling point	4070 °C
Solubility in water	Insoluble
Structure
Crystal structure	Cubic
Coordination geometry	Octahedral
Hazards
EU classification	None listed.
R-phrases	None listed.
S-phrases	None listed.
NFPA 704	0 1 1
Flash point	Non-flammable.
Related compounds
Other anions	Ytterbium(III) sulfide
Other cations	Thulium(III) oxide Lutetium(III) oxide
Y (verify) (what is: Y/N?) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Ytterbium(III) oxide is the chemical compound with the formula Yb₂O₃. It is one of the more commonly encountered compounds of ytterbium. It has the "rare-earth C-type sesquioxide" structure which is related to the fluorite structure with one quarter of the anions removed, leading to ytterbium atoms in two different six coordinate (non-octahedral) environments.

Uses

• Colorant for glasses and enamels
• Dopant for garnet crystals in lasers
• Optical fibers

See also

• Active laser medium

External links

• Information at WebElements