Characteristic

 

Rhenium is a chemical element with the symbol Re and atomic number 75. It is a silvery-gray, heavy, third-row transition metal in group 7 of the periodic table. 

Phase at STP：solid

Appearance：silvery-grayish

Melting point：3459 K (3186 °C, 5767 °F)

Boiling point：5903 K (5630 °C, 10,170 °F)

Density (near r.t.)：21.02 g/cm³

when liquid (at m.p.)：18.9 g/cm³

Heat of fusion：60.43 kJ/mol

Heat of vaporization：704 kJ/mol

Molar heat capacity：25.48 J/(mol·K)

 

Application

 

Rhenium is added to high-temperature superalloys that are used to make jet engine parts, using 70% of the worldwide rhenium production. Another major application is in platinum–rhenium catalysts, which are primarily used in making lead-free, high-octane gasoline.

Rhenium_MSDS.pdf