Praseodymium(IV) oxide

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

Praseodymium dioxide
Names
IUPAC name
Praseodymium(IV) oxide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.031.658 Edit this at Wikidata
EC Number
  • 234-838-5
  • InChI=1S/2O.Pr
    Key: BOWRJOSABXTXBI-UHFFFAOYSA-N
  • O=[Pr]=O
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).

Production

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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

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

References

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  1. ^ a b 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. 40 (1). AIP Publishing: 208–212. Bibcode:1964JChPh..40..208K. doi:10.1063/1.1724864. ISSN 0021-9606.