Cerium (III) sulfate, also called cerous sulfate, is an inorganic compound with the chemical  formula Ce2(SO4)3. It is one of the few salts whose solubility in water decreases with rising temperature. Cerium (III) sulfate (anhydrous) is a hygroscopic white solid, which begins to decompose above 600°C. It has a monoclinic crystal structure. 

Properties

Chemical  Formula : Ce2(SO4)3

Density : 3.91g/cm³

Solubility Information : Soluble in water and dilute sulfuric acid.

Formula Weight : 332.24

Percent Purity : 97%

Sensitivity : Hygroscopic

Applications

Cerium(IV) sulfate is a redox indicator and is used in analytical chemistry for redox titrations. In ionized form, ceric ion acts as a strong oxidizer under acidic conditions. It is also used to prepare spherical-like nanoparticles CeO2, nanoparticles for NO reductions′ reactions.