Cerium(IV) hydroxide, also known as ceric hydroxide, is an inorganic compound with the chemical formula Ce(OH)4. It is a yellowish powder that is insoluble in water but soluble in concentrated acids.[1]
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IUPAC name
cerium(4+);tetrahydroxide
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Other names
ceric hydroxide
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ECHA InfoCard | 100.031.441 |
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Properties | |
Ce(OH)4 | |
Appearance | bright yellow solid |
Related compounds | |
Other cations
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lanthanum hydroxide praseodymium hydroxide |
Related compounds
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cerium(III) hydroxide cerium dioxide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
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Cerium(IV) hydroxide can be produced by reacting cerium(III) carbonate and acetic acid, then oxidizing it with hydrogen peroxide in base. The reactions are:[2]
The net equation is:
If using cerium(III) nitrate as ingredient, a similar reaction occurs:[3]
It might also prepared by addition of sodium hydroxide or ammonium hydroxide to a Ce4+ solution, being obtained as a gelatinous precipitate described as CeO2·xH2O, (x = 0.5–2). Boiling an insoluble Ce4+ salt in NaOH gives granular Ce(OH)4.[1]