Praseodymium(III) iodate

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Praseodymium(III) iodate
Identifiers
3D model (JSmol)
EC Number
  • 239-021-7
  • InChI=1S/3HIO3.Pr/c3*2-1(3)4;/h3*(H,2,3,4);/q;;;+3/p-3
    Key: CIFGBMZYGQOOKC-UHFFFAOYSA-K
  • [O-]I(=O)=O.[O-]I(=O)=O.[O-]I(=O)=O.[Pr+3]
Properties
Pr(IO3)3
Molar mass 665.62
Density 4.89 g·cm-3 (pentahydrate)[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Praseodymium(III) iodate is an inorganic compound with the chemical formula Pr(IO3)3.

Preparation

Praseodymium(III) iodate can be obtained by reacting praseodymium(III) nitrate and potassium iodate in a hot aqueous solution:[2]

Pr(NO3)3 + 3 KIO3 → Pr(IO3)3 + 3 KNO3

Properties

Praseodymium(III) iodate can be thermally decomposed as follows:[3]

7 Pr(IO3)3 → Pr5(IO6)3 + Pr2O3 + 9 I2 + 21 O2

References

  1. ^ Abrahams, S.C.; Bernstein, J.L.; Nassau, K. (Jan 1976). "Transition metal iodates. VII. Crystallographic and nonlinear optic survey of the 4f-iodates". Journal of Solid State Chemistry. 16 (1–2): 173–184. Bibcode:1976JSSCh..16..173A. doi:10.1016/0022-4596(76)90020-7.
  2. ^ Roy, Ajoy; Ghosh, Bijoy Prosad; Nag, K. (Jul 1981). "Phase transition behavior of rare earth iodates". Thermochimica Acta. 47 (1): 105–108. doi:10.1016/0040-6031(81)85012-5.
  3. ^ Ghosh, B. P.; Nag, K. (Jul 1985). "Thermal and dielectric properties of rare earth iodates". Journal of Materials Science. 20 (7): 2335–2344. Bibcode:1985JMatS..20.2335G. doi:10.1007/bf00556063. ISSN 0022-2461.
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