↑ ← 75 → ↓

75 Re Rhenium

<0.05 μS/h.


Transition metal, mass: 186.21 u, 1 stable isotope (185), but nearly twice as frequent isRe with a half-life of 4.12*10years. Abundance rank (earth/space): 79/79Click image to magnify. Pure rhenium bead, arc melted, 21 grams. Original size in cm: 1.5 x 1.7. Measured radiation doseRhenium is a very rare, hard, heavy, silvery metal, which is relatively noble. In nature, it only occurs in compounds in low concentrations, which makes its extraction very laborious and expensive. Rhenium is used as additive in nickel -based superalloys, on which high demands in temperature and durability are made, like in aircraft turbines. Rhenium was the last stable element to be discovered (in 1925). The most important rhenium source is molybdenite Small rhenium bead, about 1.5 grams. Original size in cm: 0.5 x 0.5A sintered and pressed rhenium bar, 11 grams. Original size in cm: 0.34 x 0.44 x 3.5



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