Chemistry:Praseodymium(IV) oxide

From HandWiki
Praseodymium dioxide
CaF2 polyhedra.png
Names
IUPAC name
Praseodymium(IV) oxide
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 234-838-5
Properties
PrO2
Molar mass 172.91
Appearance Dark brownish crystal[1]
Structure[2]
Fluorite structure
Fm3m (No. 225)
a = 539.3 pm
4
Related compounds
Related compounds
Praseodymium(III) oxide
Praseodymium(III,IV) oxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Praseodymium(IV) oxide is an inorganic compound with chemical formula PrO2.

Production

Praseodymium(IV) oxide can be produced by boiling Pr6O11 in water or acetic acid:[1]

Pr6O11 + 3 H2O → 4 PrO2 + 2 Pr(OH)3

Chemical reactions

Praseodymium(IV) oxide starts to decompose at 320~360 °C, liberating oxygen.

References

  1. 1.0 1.1 Chinese: 《无机化学丛书》.第七卷 钪 稀土元素. 科学出版社. 1.3.4 氧化态+4的化合物. P193~195
  2. Kern, Sanford (1964). "Magnetic Susceptibility of Praseodymium Oxides". The Journal of Chemical Physics (AIP Publishing) 40 (1): 208–212. doi:10.1063/1.1724864. ISSN 0021-9606. Bibcode1964JChPh..40..208K.