Open here for our page navigation
Rhenium (metal) Powder
Re
Rhenium is a rare element and does not occur in quantity in any ore. It is found in ores which contain molybdenum from which it can be readily recovered. The metal is obtained by hydrogen reduction of the potassium perrhenate salt, obtained by precipitation of the perrhenate ion (ReO4) - from an oxidized solution.
Rhenium is a silvery colored metal which resists corrosion and oxidation but slowly tarnishes in moist air. It is soluble in nitric and sulfuric acids.
Applications: Rhenium metal applications include its use as an alloying element with tungsten, the resulting alloy having a very high electrical resistance making it suitable for electrical filaments. Rhenium has a very high melting point and is used in high temperature thermocouples, electrical contacts and thermistors. Rhenium is used in platinum-rhenium catalysts which in turn are primarily used in making lead-free, high-octane gasoline and in high-temperature super alloys that are used to make jet engine parts.
Formula Re
CAS Number 7440-15-5
Color/Form Grey to dark grey powder
Crystallography Hexagonal structure
Particle Sizes -325 mesh, -200 mesh, -100 mesh, < 5 μm
Formula Weight 186.21 gm/mol
Melting Point 3157 – 3181oC
Boiling Point 5627 – 5900oC
Density 21.02 gm/cm3
Mohs Hardness 7.0
Purity ≥ 99.9%, ≥ 99.99%, ≥ 99.999%
Rhenium is also available as foil, pellets, slugs, rods and wire forms.
