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.

Names



IUPAC name Carbon diselenide
Systematic IUPAC name Methanediselenone
Other names Carbon selenide Diselenoxomethane Methanediselone Carbon(IV) selenide
Identifiers
CAS Number	506-80-9^Y
3D model (JSmol)	Interactive image
ChemSpider	61481^Y
ECHA InfoCard	100.007.323
EC Number	208-054-9
PubChem CID	68174
UNII	WD123H448C^Y
CompTox Dashboard (EPA)	DTXSID1060138
InChI InChI=1S/CSe2/c2-1-3^Y Key: JNZSJDBNBJWXMZ-UHFFFAOYSA-N^Y 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 (Δ_fH^⦵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). N verify (what is ^YN ?) Infobox references