Carbon diselenide

Carbon diselenide
Names
	IUPAC name Carbon diselenide
	Systematic IUPAC name Methanediselenone
	Other names Carbon selenide; Diselenoxomethane; Methanediselone; Carbon(IV) selenide
Identifiers
CAS Number	506-80-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	61481 ;
ECHA InfoCard	100.007.323
EC Number	208-054-9;
PubChem CID	68174;
UNII	WD123H448C ;
CompTox Dashboard (EPA)	DTXSID1060138 ;
	InChI InChI=1S/CSe2/c2-1-3 Key: JNZSJDBNBJWXMZ-UHFFFAOYSA-N ; InChI=1/CSe2/c2-1-3 Key: JNZSJDBNBJWXMZ-UHFFFAOYAM;
	SMILES [Se]=C=[Se];
Properties
Chemical formula	CSe2
Molar mass	169.953 g·mol−1
Appearance	Yellow liquid
Density	2.6824 g/cm3
Melting point	−43.7 °C (−46.7 °F; 229.5 K)
Boiling point	125.5 °C (257.9 °F; 398.6 K)
Solubility in water	0.054 g/(100 mL)
Solubility	Soluble in CS2, toluene
Dipole moment	0 D
Thermochemistry
Heat capacity (C)	50.32 J/(mol·K) (gas)
Std molar; entropy (S⦵298)	263.2 J/(mol·K) (gas)
Std enthalpy of; formation (ΔfH⦵298)	219.2 kJ/mol (liquid)
Hazards
Flash point	30 °C (86 °F; 303 K)
	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

Carbon diselenide is an inorganic compound with the chemical formula CSe₂. It is a yellow-orange oily liquid with pungent odor. It is the selenium analogue of carbon disulfide (CS₂) and carbon dioxide (CO₂). This light-sensitive compound is insoluble in water and soluble in organic solvents.

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