|Group||7||Melting point||3185°C, 5765°F, 3458 K|
|Period||6||Boiling point||5590°C, 10094°F, 5863 K|
|Block||d||Density (g cm−3)||20.8|
|Atomic number||75||Relative atomic mass||186.207|
|State at 20°C||Solid||Key isotopes||187Re|
|Electron configuration||[Xe]4f14 5d5 6s2||CAS number||7440-15-5|
|ChemSpider ID||22388||ChemSpider is a free chemical structure database|
- Rhenium is an extremely rare element and is scattered widely in nature.
- It is a heavy, silvery-white and a third-row transition metal in group 7 of the periodic table.
- The element can be traced on the earth’s surface in parts per billion.
- The element has no mineral characteristic and it has been detected in certain ores of platinum and molybdenite.
- The element is mainly used as a petroleum reforming catalyst and also in turbine engine of high-temperature components as superalloys.
- The element amplifies the high-temperature strength properties of some nickel-based superalloys.
- Rhenium is added to molybdenum and tungsten to form alloys that are used for making filaments for lamps and ovens.
- Rhenium is added to high-temperature superalloys which are used to make jet engine parts.
- The element has a very high melting point next to Tungsten.
- The element is formed using oxidizing smelter residues gained by molybdenite processing.
- The atmospheric heat would be more than sufficient to form the metallic version of this element.