Lanthanum(III) iodate

Lanthanum(III) iodate is an inorganic compound with the chemical formula La(IO3)3.

Lanthanum(III) iodate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.187
EC Number
  • 237-621-3
  • InChI=1S/3HIO3.La/c3*2-1(3)4;/h3*(H,2,3,4);/q;;;+3/p-3
    Key: BULVJAIIOVREOT-UHFFFAOYSA-K
  • [O-]I(=O)=O.[O-]I(=O)=O.[O-]I(=O)=O.[La+3]
Properties
La(IO3)3
Molar mass 663.617
Appearance colourless crystals
1.07×10-3mol·L-1[1]
Related compounds
Other anions
 lanthanum(III) nitrate
lanthanum(III) oxide
Other cations
 cerium(III) iodate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Preparation

Lanthanum(III) iodate can be obtained by reacting a La3+ salt with potassium iodate or ammonium iodate and precipitating it:[1]

La3+ + 3 IO3− → La(IO3)3↓

Properties

Lanthanum(III) iodate can disproportionate and decompose to a periodate when heated:[2]

10 La(IO3)3 → 2 La5(IO6)3 + 12 I2↑ + 27 O2↑

References
  1. 《无机化学丛书》. 第七卷 钪 稀土元素. 易宪武 等主编. 科学出版社. P184~185. 13. 卤素含氧酸盐
  2. K. Nassau, J.W. Shiever, B.E. Prescott (Jun 1975). "Transition metal iodates. VI. Preparation and characterization of the larger lanthanide iodates". Journal of Solid State Chemistry. 14 (2): 122–132. Bibcode:1975JSSCh..14..122N. doi:10.1016/0022-4596(75)90002-X. Archived from the original on 2018-07-01. Retrieved 2020-05-29.{{cite journal}}: CS1 maint: multiple names: authors list (link)
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