Characteristic
Rhenium pentachloride is an inorganic compound of chlorine and rhenium. The compound has the formula Re2Cl10 but it is usually referred to as rhenium pentachloride. It is a red-brown solid.
Chemical formula:ReCl5
Molar mass:363.471 g/mol
Appearance:red-brown
Density:4.9 g/cm3, solid
Melting point:220 °C (428 °F; 493 K)
Boiling point:N/A
Solubility in water:Will react to decompose and release HCl (g)
Magnetic susceptibility (χ):+1225.0·10−6 cm3/mol
Application
It degrades in air to a brown liquid.
Although rhenium pentachloride has no commercial applications, it is of historic significance as one of the early catalysts for olefin metathesis.
Comproportionation of the penta- and trichloride gives rhenium tetrachloride.