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Rhenium is a silvery-white metal with one of the highest melting points of all elements, exceeded by only tungsten. (At standard pressure carbon sublimes rather than melts, though its sublimation point is comparable to the melting points of tungsten and rhenium.)
This is a list of prices of chemical elements.Listed here are mainly average market prices for bulk trade of commodities. Data on elements' abundance in Earth's crust is added for comparison.
A noble metal is ordinarily regarded as a metallic element that is generally resistant to corrosion and is usually found in nature in its raw form. Gold , platinum , and the other platinum group metals ( ruthenium , rhodium , palladium , osmium , iridium ) are most often so classified.
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Refractory metals have high melting points, with tungsten and rhenium the highest of all elements, and the other's melting points only exceeded by osmium and iridium, and the sublimation of carbon. These high melting points define most of their applications. All the metals are body-centered cubic except rhenium which is hexagonal close-packed.
75 Re rhenium; use: 704 LNG: 704 WEL: 705 Zhang et al. 707 76 Os osmium; use: 678 LNG: 738 WEL: 630 Zhang et al. 678 77 Ir iridium; use: 564 LNG: 231.8 WEL: 560 Zhang et al. 564 78 Pt platinum; use: 510 LNG: 469 WEL: 490 Zhang et al. 510 79 Au gold; use: 342 CRC: 324 LNG: 324 WEL: 330 Zhang et al. 342 80 Hg mercury; use: 59.11 CRC: 59.11 LNG ...
It is the raw material for all rhenium compounds, being the volatile fraction obtained upon roasting the host ore. [26] Rhenium, in addition to the +4 and +7 oxidation states, also forms a trioxide. It can be formed by reducing rhenium(VII) oxide with carbon monoxide at 200 C or elemental rhenium at 4000 C. [27] It can also be reduced with ...
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