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Lanthanum(III) iodate

Chemical compound From Wikipedia, the free encyclopedia

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

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Lanthanum(III) iodate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.034.187 Edit this at Wikidata
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).
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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↑

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