Erbium(III) hydroxide

Erbium(III) hydroxide is an inorganic compound with chemical formula Er(OH)₃.

Erbium(III) hydroxide

Names
Other names erbium hydroxide
Identifiers
CAS Number	14646-16-3 Y
3D model (JSmol)	Interactive image
ChemSpider	76295 Y
ECHA InfoCard	100.035.163
EC Number	238-696-5
PubChem CID	84573
CompTox Dashboard (EPA)	DTXSID0065802
InChI InChI=1S/Er.3H2O/h;3*1H2/q+3;;;/p-3 Y Key: VAVZPNQZVXNCJK-UHFFFAOYSA-K Y
SMILES [OH-].[OH-].[OH-].[Er+3]
Properties
Chemical formula	Er(OH)3
Molar mass	218.283
Appearance	pink solid[1]
Related compounds
Other anions	Erbium oxide
Other cations	holmium(III) hydroxide thulium(III) hydroxide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Chemical properties

Erbium(III) hydroxide reacts with acids and produces erbium(III) salts:

Er(OH)₃ + 3H⁺ → Er³⁺ + 3H₂O

Erbium(III) hydroxide decomposes to ErO(OH) at elevated temperature. Further decomposition produces Er₂O₃.^[1]