Rhenium (V) Chloride (ReCl5)-Powder

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.

ReCl5.pdf