Lanthanum(III) sulfate

Lanthanum(III) sulfate is an inorganic compound with the formula La2(SO4)3·xH2O (0 ≥ x ≥ 9).

It forms various hydrates, the most common one being the nonahydrate, which are all white solids.

It is an intermediate in producing lanthanum from its ores.

[4] The nonahydrate is produced by dissolving lanthanum or lanthanum hydroxide in dilute sulfuric acid, then evaporating the solution:[5] The anhydrous compound can be produced by heating the hydrates to 300 °C.

If heated further, anhydrous lanthanum(III) sulfate decomposes to La2O2SO4 at 775 °C, which in turn decomposes to lanthanum(III) oxide at 1100 °C.

NFPA 704 four-colored diamond Health 0: Exposure under fire conditions would offer no hazard beyond that of ordinary combustible material. E.g. sodium chloride Flammability 0: Will not burn. E.g. water Instability 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g. calcium Special hazards (white): no code