Osmium(II) chloride

Osmium(II) chloride
Names
	IUPAC name Osmium(II) chloride
	Other names Osmium dichloride
Identifiers
CAS Number	13444-92-3 ;
3D model (JSmol)	Interactive image;
ChemSpider	379789;
PubChem CID	429382;
	InChI Key: OAGAGESCFZXSJR-UHFFFAOYSA-L; InChI=1S/2ClH.Os/h2*1H;/q;;+2/p-2;
	SMILES Cl[Os]Cl;
Properties
Chemical formula	OsCl2
Molar mass	261.14 g/mol
Appearance	dark brown solid
Density	4.38 g/cm3
Melting point	450 °C (842 °F; 723 K)
Solubility in water	Almost insoluble
Related compounds
Other anions	Osmium dibromide
Other cations	Iron(II) chloride; Palladium(II) chloride
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Osmium(II) chloride or osmium dichloride is an inorganic compound composed of osmium metal and chlorine with the chemical formula OsCl
₂.^[1]

Synthesis

Osmium(II) chloride can be prepared by disproportionation of osmium(III) chloride at 500 °C in vacuum.^[2]

2OsCl₃ → OsCl₄ + OsCl₂

Osmium(II) chloride is a hygroscopic dark brown solid that is insoluble in water.^[3]

It is soluble in ethanol and ether.^[4]

Osmium(II) chloride does not react with hydrochloric acid and sulfuric acid.

It reacts with CO at 220 °C:

OsCl₂ + 3CO → Os(CO)₃Cl₂

Osmium(II) chloride can be used for the catalytic production of trialkylamines.^[5]

Names
IUPAC name Osmium(II) chloride
Other names Osmium dichloride
Identifiers
CAS Number	13444-92-3^Y
3D model (JSmol)	Interactive image
ChemSpider	379789
PubChem CID	429382
InChI Key: OAGAGESCFZXSJR-UHFFFAOYSA-L InChI=1S/2ClH.Os/h2*1H;/q;;+2/p-2
SMILES Cl[Os]Cl
Properties
Chemical formula	OsCl₂
Molar mass	261.14 g/mol
Appearance	dark brown solid
Density	4.38 g/cm³
Melting point	450 °C (842 °F; 723 K)
Solubility in water	Almost insoluble
Related compounds
Other anions	Osmium dibromide
Other cations	Iron(II) chloride Palladium(II) chloride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references