Cerium(III) hydroxide

Cerium(III) oxide
Names
	IUPAC name Cerium(III) hydroxide
	Other names Cerium trihydroxide; Cerous hydroxide
Identifiers
CAS Number	15785-09-8 ;
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

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]

Preparation

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

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

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