Lanthanum oxalate

Lanthanum oxalate is an inorganic compound, a salt of lanthanum metal and oxalic acid with the chemical formula.

Synthesis
Reaction of soluble lanthanum nitrate with an excess of oxalic acid:



Also, a reaction of lanthanum chloride with oxalic acid:

Physical properties
Lanthanum(III) oxalate forms colorless crystals that are poorly soluble in water.

The compound forms various crystallohydrates •n, where n = 1, 2, 3, 7, and 10.

The crystallohydrates decompose when heated.