Cerium(III) hydroxide

Cerium(III) oxide

Names
IUPAC name Cerium(III) hydroxide
Other names Cerium trihydroxide Cerous hydroxide
Identifiers
CAS Number	15785-09-8 Y
EC Number	239-881-3
Jmol 3D model	Interactive image
PubChem	85102
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
Vapor pressure	{{{value}}}
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

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.

Preparation

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

$\mathsf{2Ce + 6H_2O \ \xrightarrow{90^oC}\ 2Ce(OH)_3\downarrow + 3H_2\uparrow }$