Neodymium(III) iodate

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Neodymium(III) iodate
Identifiers
3D model (JSmol)
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).

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

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

  1. ^ a b Wang, Wenjun; Cheng, Hefeng; Huang, Baibiao; Li, Xinru; Qin, Xiaoyan; Zhang, Xiaoyang; Dai, Ying (2014-05-19). "Ln(IO 3 ) 3 (Ln = Ce, Nd, Eu, Gd, Er, Yb) Polycrystals As Novel Photocatalysts for Efficient Decontamination under Ultraviolet Light Irradiation". Inorganic Chemistry. 53 (10): 4989–4993. doi:10.1021/ic500027f. ISSN 0020-1669. PMID 24796497.
  2. ^ 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.
  3. ^ Liminga, R.; Abrahams, S. C.; Bernstein, J. L. (1975-02-01). "Pyroelectric Nd(IO3)3⋅H2O. Crystal structure of the transition-metal iodates. II". The Journal of Chemical Physics. 62 (3): 755–763. doi:10.1063/1.430521. ISSN 0021-9606.
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