Diwodzian siarczanu ceru (IV) amonu

Ammonium Cerium(IV) Sulfate Dihydrate
Other Names: Ceric Ammonium Sulfate, Cerium(IV) Ammonium Sulfate Dihydrate

CAS Number: 10378-47-9
Chemical Formula: (NH₄)₄[Ce(SO₄)₄]·2H₂O
Molar Mass: 632.44 g/mol
Appearance: Orange-red crystalline solid

Ammonium cerium(IV) sulfate dihydrate is a bright orange-red inorganic compound widely used as an oxidizing agent in analytical chemistry and organic synthesis. It contains cerium in its +4 oxidation state and is typically handled as a hydrated double salt with ammonium sulfate.

Chemical and Physical Properties
Density: ~2.4 g/cm³
Solubility: Soluble in water, forming acidic solutions
Melting Point: Decomposes upon heating
Odor: Odorless

Applications
Analytical Chemistry: Employed as a titrant in redox titrations due to its strong oxidizing ability.
Organic Synthesis: Used in oxidative transformations, especially for the cleavage of carbon–carbon double bonds.
Catalysis: Serves as a mild, selective oxidant in various reactions, including alcohol and thiol oxidations.

Safety

Signal Word: Danger

Hazard Statements:
H272: May intensify fire; oxidizer.
H302: Harmful if swallowed.
H314: Causes severe skin burns and eye damage.
H410: Very toxic to aquatic life with long lasting effects.

Precautionary Statements:
P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking.
P220: Keep/Store away from clothing and other combustible materials.
P280: Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing.
P501: Dispose of contents/container in accordance with local regulations.