Ceric Sulfate

Cerium(IV) sulfate, also called ceric sulfate, is an inorganic compound. It exists as the anhydrous salt Ce(SO4)2 as well as a few hydrated forms: Ce(SO4)2(H2O)x, with x equal to 4, 8, or 12.


The ceric ion is a strong oxidizer, especially under acidic conditions. If ceric sulfate is added to dilute hydrochloric acid, then elemental chlorine is formed, albeit slowly. With stronger reducing agents it reacts much faster. For example, with sulfite in acidic environments it reacts quickly and completely.

When ceric compounds are reduced, so-called cerous compounds are formed. The reaction taking place is:

Ce4+ + e → Ce3+

The cerous ion is colorless.


Chemical formula
Molar mass 332.24 g/mol (anhydrous)
404.304 (tetrahydrate)
Appearance Yellow solid (anhydrous)
yellow-orange crystals (tetrahydrate)
Density 3.91 g/cm3 (tetrahydrate)
Melting point 350 °C (662 °F; 623 K) (decomposes)
Boiling point NA
Solubility in water
Soluble in small amounts, hydrolyzes in large amounts of water
21.4 g/100 mL (0 °C)
9.84 g/100 mL (20 °C)
3.87 g/100 mL (60 °C)
Solubility soluble in dilute sulfuric acid
Magnetic susceptibility (χ)
+37.0·10−6 cm3/mol
Crystal structure
Main hazards Oxidizer


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