Erbium oxide

Erbium oxide[1]
Other names

Erbium oxide, erbia
Identifiers
CAS number 12061-16-4 Y
ChemSpider 4298039 Y
Jmol-3D images Image 1
Properties
Molecular formula Er2O3
Molar mass 382.56 g/mol
Appearance pink crystals
Density 8.64 g/cm3
Melting point

2344 °C
Boiling point

3290 °C
Structure
Crystal structure Cubic, cI80
Space group Ia-3, No. 206
Thermochemistry
Std enthalpy of
formation ΔfHo298		 -1897.9 kJ·mol-1
Standard molar
entropy So298		 155.6 J·mol-1·K-1
Specific heat capacity, C 108.5 J·mol-1·K-1
 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

Erbium oxide, a pink solid, is a compound of erbium sometimes used as a colouring for glasses[1] and a dopant for optical fibres and optical amplifiers. It was partially isolated by Carl Gustaf Mosander in 1843, and first obtained in pure form in 1905 by Georges Urbain and Charles James.[2]

Erbium oxide can be also used as a burnable neutron poison for nuclear fuel.

It can react with acids to form the corresponding erbium(III) salts:

Er2O3 + 6 HCl → 2 ErCl3 + 3 H2O

References

  1. ^ a b Lide, David R. (1998). Handbook of Chemistry and Physics (87 ed.). Boca Raton, FL: CRC Press. pp. 4–57. ISBN 0849305942. 
  2. ^ Aaron John Ihde (1984). The development of modern chemistry. Courier Dover Publications. p. 378–379. ISBN 0486642356. http://books.google.com/books?id=34KwmkU4LG0C&pg=PA377&. 

External links