Cerium(III) hydroxide is a hydroxide of the rare-earth metal cerium. It is a pale white powder with the chemical formula Ce(OH)₃.^[1]

This article needs additional citations for verification. (March 2015)

Quick Facts Names, Identifiers ...

Cerium(III) hydroxide

Names
IUPAC name Cerium(III) hydroxide
Other names Cerium trihydroxide Cerous hydroxide
Identifiers
CAS Number	15785-09-8 Y
3D model (JSmol)	Interactive image
ECHA InfoCard	100.036.241
EC Number	239-881-3
PubChem CID	85102
CompTox Dashboard (EPA)	DTXSID9065942
InChI InChI=1S/Ce.3H2O/h;3*1H2/q+3;;;/p-3 Key: UNJPQTDTZAKTFK-UHFFFAOYSA-K
SMILES [Ce+3].[OH-].[OH-].[OH-]
Properties
Chemical formula	Ce(OH)3
Molar mass	191.148 g/mol
Appearance	white crystals
Solubility in water	insoluble
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Close

Cerium(III) hydroxide is prepared by the reaction of hot water at 90 °C on cerium metal:

${\displaystyle {\ce {{2Ce}+6H2O->[{} \atop {90^{\circ }{\ce {C}}}]2Ce(OH)3(v)+3H2{\uparrow }}}}$