Characteristic
Selenium monochloride is an inorganic compound with the formula Se2Cl2. Although it is called selenium monochloride, a more descriptive name might be diselenium dichloride. It is a reddish-brown, oily liquid that hydrolyses slowly. It exists in chemical equilibrium with SeCl2, SeCl4, chlorine, and elemental selenium.
Chemical formula:Se2Cl2
Molar mass:228.83 g/mol
Appearance:Reddish-brown oily liquid
Density:2.7741 g/cm3
Melting point:−85 °C (−121 °F; 188 K)
Boiling point:127 °C (261 °F; 400 K) at 0.997 atm
Solubility in water:insoluble
Solubility in other solvents:Soluble in chloroform, carbon disulfide, and acetonitrile
Magnetic susceptibility (χ):−94.8·10−6 cm3/mol
Application
Selenium monochloride is mainly used as a reagent for the synthesis of Se-containing compounds.