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Chemical element number 75, Rhenium is a silver-gray transition metal in group seven of the periodic table of elements. 

This incredibly rare element is known for having the third-highest melting point and the highest boiling point of any of the stable elements. It’s similar to manganese and technetium and as a wide variety of oxidation states. 

Composition Of Rhenium 

As noted, Rhenium has the third-highest melting point of the stable elements at 3459 degrees Kelvin. It also has the highest boiling point, at 5903 degrees kelvin. 

This solid material is known as a transition metal and is found in period 6, group 7 of the periodic table. Rhenium is silvery-gray and has a standard atomic weight of 186.207. 

A Reference To The Rhine 

Rhenium was discovered in 1908 and was the second to last stable element to be found. Named after the Rhine river in Europe, the element is typically thought to have been discovered in Germany by Otto Berg, Walter Noddack, and Ida Noddack. 

This incredibly rare metal is typically found as a by-product of copper and molybdenum ore refinement. The average concentration of the element in the earth is 1 part per billion. 

A Variety Of Applications  

Because of Rhenium’s resistance to high temperatures, most of its applications are in superalloys that are used to make things like jet engine parts. 

The element is also used in platinum-rhenium catalysts which make lead-free gasoline that is quite high-octane. 

Additionally, the isotopes RE 186 and RE 188 are often used for the treatment of liver cancer. 

The Rarity Of The Metal 

Due to the rarity of the element, it’s far less frequently used in everyday objects that most people would come across and is less known than other similar metals. 

However, it does have great medical and industrial applications, as noted! 

A Heat-Resistance Element 

Rhenium is incredibly useful thanks to its high melting and boiling points. This dense element is certainly one that has helped humanity improve in the creation of production of industrial goods!