Ammonium cerium(IV) sulfate
Encyclopedia
Ammonium cerium sulfate, is a chemical compound
Chemical compound
A chemical compound is a pure chemical substance consisting of two or more different chemical elements that can be separated into simpler substances by chemical reactions. Chemical compounds have a unique and defined chemical structure; they consist of a fixed ratio of atoms that are held together...

. It is frequently used as an oxidising agent in titrations. The orange-colored cerium(IV) ion is reduced to the colorless cerium(III) ion. The potential for reduction is high, about +1.44V. Cerium(IV) sulfate
Cerium(IV) sulfate
Cerium sulfate, also called ceric sulfate, is a yellow to yellow/orange chemical compound. It exists as the anhydrous salt Ce2; a few hydrated forms are also known: Ce2 ⋅ xH2O, with x equal to 4, 8, or 12. Ceric sulfate is available commercially.-Properties:Ceric sulfate is moderately soluble in...

is also used.

Ammonium cerium(IV) sulfate is a very safe oxidizer, one of the most nontoxic ones.
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