Europium(III) chloride

Europium(III) chloride
Names
	IUPAC names Europium(III) chloride; Europium trichloride
Identifiers
CAS Number	10025-76-0 ; 13759-92-7 (hexahydrate) ;
3D model (JSmol)	Interactive image;
ChemSpider	23194 ;
ECHA InfoCard	100.030.025
EC Number	233-040-4;
PubChem CID	24809;
RTECS number	LE7525000;
UNII	LP6WL6W368 ;
CompTox Dashboard (EPA)	DTXSID2041965 ;
	InChI InChI=1S/3ClH.Eu/h31H;/q;;;+3/p-3 Key: NNMXSTWQJRPBJZ-UHFFFAOYSA-K ; InChI=1/3ClH.Eu/h31H;/q;;;+3/p-3 Key: NNMXSTWQJRPBJZ-DFZHHIFOAZ;
	SMILES Cl[Eu](Cl)Cl;
Properties
Chemical formula	EuCl3
Molar mass	258.323 g/mol; 366.41 g/mol (hexahydrate)
Melting point	632 °C (1,170 °F; 905 K) decomposes
Solubility in other solvents	Soluble
Structure
Crystal structure	hexagonal (UCl3 type), hP8
Space group	P63/m, No. 176
Coordination geometry	Tricapped trigonal prismatic; (nine-coordinate)
Related compounds
Other anions	Europium(III) oxide
Other cations	Samarium(III) chloride; Gadolinium(III) chloride
Related compounds	Europium dichloride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Europium(III) chloride is an inorganic compound with the formula EuCl₃. The anhydrous compound is a yellow solid. Being hygroscopic it rapidly absorbs water to form a white crystalline hexahydrate, EuCl₃·6H₂O, which is colourless. The compound is used in research.