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Cerium Ammonium Sulfate

CAS NO: 10378-47-9  EINECS: 231-567-4
Molecular Formula: Ce(NH4)4(SO4)4·2(H2)
Molecular Weight: 632.551
Properties: Orange-red Crystalline Powder, Soluble In Water, Oxidizer, Incompatible With Strong Reducing Agents, Combustible Material, Hygroscopic.
Synonyms: CAS; Cerium Sulfate Ammonium; Ammonium Ceric Sulfate; Ceric ammonium sulfate; Ceric ammonium sulfate dihydrate.


TREO>% 34.5 34 34
CeO2/REO>% 99.999 99.99 99.9
Ce4+/∑Ce >% 98.5 98 97
Non-rare earth impurities<ppm
Fe 1 2 5
Ca 1 5 5
Na 1 5 5
K 0.5 1 5
Pb 0.5 1 5
Cu 0.5 1 5
Ni 0.5 1 5
NTU 0.8 1 1.5

Chemical Properties:

Cerium(IV) ion is a potent one-electron oxidant.1 Cerium(IV) Ammonium Nitrate (CAN), is the most widely utilized cerium(IV) oxidizing agent, but cerium(IV) ammonium sulfate (CAS) is a good substitute when complications due to the involvement of nitrate ligands occur, resulting in side products such as nitrate esters.

Handling, Storage, and Precautions:

cerium(IV) ammonium sulfate is a stable reagent and precautions required for handling strong oxidizing agents such as Potassium Permanganate will be sufficient. Cerium is reputed to be of low toxicity.


Ammonium Cerium Sulfate is used in preparation of cerium IV oxidimetric solutions, it is an oxidizing agent, used as an oxidizing agent in organic synthesis and as a standard oxidant in quantitative analysis, also used for catalyzer and chemical additives.

Packing: Drum inner with plastic bag. Net weight 25/50 kg.

Storage: Store In Cool, Dry Place In Tightly Closed Containers. Incompatible With Oxidizing Agents.