Ytterbium(II) chloride

Ytterbium(II) chloride

Names
Other names ytterbium dichloride
Identifiers
CAS Number	13874-77-6
3D model (Jmol)	Interactive image
ChemSpider	75606
ECHA InfoCard	100.034.197
InChI InChI=1S/2ClH.Yb/h2*1H;/q;;+2/p-2 Key: LINIOGPXIKIICR-UHFFFAOYSA-L InChI=1S/2ClH.Yb/h2*1H;/q;;+2/p-2 Key: LINIOGPXIKIICR-UHFFFAOYSA-L
SMILES [Yb+2].[Cl-].[Cl-]
Properties
Chemical formula	YbCl2
Molar mass	243.95 g/mol
Appearance	green crystals
Density	5.27 g/cm^3, solid
Melting point	721 °C (1,330 °F; 994 K)
Solubility in water	reacts[1]
Structure
Crystal structure	Orthorhombic, oP24
Space group	Pbca, No. 61
Hazards
EU classification (DSD)	not listed
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Ytterbium(II) chloride (YbCl₂) is an inorganic chemical compound. It was first prepared in 1929 by W. K. Klemm and W. Schuth, by reduction of ytterbium(III) chloride, YbCl₃, using hydrogen.

2 YbCl₃ + H₂ → 2 YbCl₂ + 2 HCl

Like other Yb(II) compounds and other low-valence rare earth compounds, it is a strong reducing agent. It is unstable in aqueous solution, reducing water to hydrogen gas.^[2]

References

1. Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–94, ISBN 0-8493-0594-2
2. ytterbium - Britannica Online Encyclopedia