Lanthanum(III) iodate

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

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


 * La3+ + 3 IO3− → La(IO3)3↓

Properties
Lanthanum(III) iodate can disproportionate and decompose to a periodate when heated:


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