Rhenium is the 75th element in the periodic table. The chemical symbol Re (lat. Rhenium) is a silvery-white metal, similar in properties to tungsten and molybdenum. Very rich reserves of rhenium is Chile, USA and Russia. Like other rare earth elements, this metal is scattered in the ores of other metals, most of it is contained in copper and molybdenum ores. The demand for it is growing as the metal is almost indispensable in the production of high-tech products. Severe and refractory metal rhenium (melting point in excess of 3170°C) due to its advantages gained well-deserved popularity in metallurgy, nuclear energy, electrical engineering, petrochemical industry.
|The proportion||21 g/cm3|
|The specific heat of fusion||34 kJ/mol|
|Atomnaya weight||186,2 g/mol|
|The degree of oxidation||-1, 0, 2, 3, 4, 5, 6, 7|
The alloys of rhenium with tungsten or molybdenum to increase the strength and simultaneously improves the plasticity. Alloying with rhenium makes steel alloys krasnoselkii, they copes with repeated heating and cooling without losing its basic qualities: strength and durability.
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