Neodymium(III) iodate

Chemical compound From Wikipedia, the free encyclopedia

Neodymium(III) iodate is an inorganic compound with the chemical formula Nd(IO3)3.

Quick facts Identifiers, Properties ...
Neodymium(III) iodate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 238-789-0
  • InChI=1S/3HIO3.Nd/c3*2-1(3)4;/h3*(H,2,3,4);/q;;;+3/p-3
    Key: SEHRUTVBKBCDGC-UHFFFAOYSA-K
  • [O-]I(=O)=O.[O-]I(=O)=O.[O-]I(=O)=O.[Nd+3]
Properties
Nd(IO3)3
Molar mass 668.95 g/mol
Appearance purple solid[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Preparation

Neodymium(III) iodate can be produced by the hydrothermal reaction of neodymium(III) nitrate or neodymium(III) oxide and iodic acid in water at 230 °C:[1]

Nd(NO3)3 + 3 HIO3 → Nd(IO3)3 + 3 HNO3
Nd2O3 + 6 HIO3 → 2 Nd(IO3)3 + 3 H2O

Properties

Neodymium(III) iodate can be thermally decomposed as follows:[2]

7 Nd(IO3)3 → Nd5(IO6)3 + Nd2O3 + 9 I2 + 21 O2

Its monohydrate is known, crystallizing in the monoclinic crystal system, with space group P21, and its pyroelectric coefficient at room temperature is 2.2×10−5 C·m−2/K.[3]

References

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