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Home Materials Rhenium , Re
75 186.210
Re
Rhenium

Rhenium , Re

Rhenium, denoted by the symbol Re and boasting atomic number 75, stands as a remarkable chemical element distinguished by its silvery-white appearance, rarity, and exceptional properties as a polyvalent transition metal. It has one of the highest melting points of all elements, exceeded by only tungsten and carbon. It is also one of the most dense, exceeded only by platinum, iridium and osmium. 

  • Listed below are a selection of some more commonly used sizes. If you do not see anything that suits your needs, please click on the custom request forms and send us your requirements.
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R1-5003-M
Re 3-6mm Pieces 99.99% PureSuperVac© Rhenium
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R1-10004-P
ReCl3 -80 mesh 99.9% PureRhenium Chloride
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R1-10005-P
ReCl4 -80 mesh 99.9% PureRhenium Chloride
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R1-10006-P
ReCl5 -80 mesh 99.9% PureRhenium Chloride
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R1-10007-P
ReF6 disposable metal cylinder under pressure(m.p. 19ř, b.p. 48ř), 99.9%Rhenium Fluoride
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R1-10009-P
Re2O7 -6 mesh 99.99% PureRhenium Oxide
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R1-10010-P
ReO3 -100 mesh 99.95% PureRhenium Oxide
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R1-10011-P
ReO2 -100 mesh 99.95% PureRhenium Oxide
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R1-10012-P
ReSe2 -100 mesh 99.9% PureRhenium Selenide
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R1-10014-P
ReS -80 mesh 99.9% PureRhenium Sulphide
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R1-10015-P
ReTe2 -60 mesh 99.9% PureRhenium Telluride
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R1-2000-R

Re Rod 1.58mm diameter 99.99% pure

Rhenium

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R1-2001-R

Re Rod 3.18mm diameter 99.99% pure

Rhenium

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R1-2002-R

Re Rod 6.35mm diameter 99.99% pure

Rhenium

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R1-2003-R

Re Rod 12.7mm diameter 99.99% pure

Rhenium

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R1-2004-R

Re Rod 15.88mm diameter 99.99% pure

Rhenium

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R1-9000-D001
Rhenium Re, Purity 99.95% & 99.99%
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R1-9002-D001
Rhenium-Molybdenum, Re-Mo, Available in various ratios wt% or at%, Purity 99.95%
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RE-F-0.1

Re Foil Thickness 0.1mm (0.004") Purity 99.99%

Rhenium

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RE-F-0.2

Re Foil Thickness 0.2mm (0.008") Purity 99.99%

Rhenium

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RE-ST-2-3-3N5
Re TRG 50.8mm dia. x 3mm Tk 99.95% PureRhenium
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One of rhenium's notable features is its status as a heavy element, contributing to its density and strength in alloy formulations. Often utilised in specialised alloys, rhenium imparts desirable properties such as enhanced strength, ductility, and resistance to high temperatures and corrosion. Notably, rhenium-molybdenum alloys exhibit superconducting properties, making them essential in critical applications such as medical imaging devices, particle accelerators, and magnetic resonance imaging (MRI) machines.

In industrial practice, rhenium is primarily obtained as a by-product of molybdenum refinement, highlighting its role in the production of this essential industrial metal. Beyond its utility in superalloys and superconductors, rhenium finds application in catalysts for petroleum refining, where its ability to withstand high temperatures and resist degradation proves invaluable in optimising chemical processes and increasing efficiency.

Moreover, rhenium's exceptional resistance to corrosion and oxidation make it suitable for use in critical components of aerospace engines, where reliability and performance under extreme conditions are paramount. Its inclusion in turbine blades, combustion chambers, and other high-temperature applications ensures the durability and efficiency of aircraft engines, contributing to the safety and reliability of air travel.

In summary, rhenium stands as a rare and valuable element with a diverse range of industrial applications, from aerospace engineering to medical technology. Its unique properties, coupled with its scarcity, position it as an indispensable material driving innovation and progress in specialised fields where its distinct characteristics are irreplaceable.

Symbol Re
Atomic number 75
No. of naturally occurring isotopes 2
Atomic weight 186.207
Electronic configuration [Xe]4f145d56s2
Metal radius(.12-coordinate)/pm 137
Ionic radius(6-coordinate)/pm VII 53
Ionic radius(6-coordinate)/pm VI 55
Ionic radius(6-coordinate)/pm V 58
Ionic radius(6-coordinate)/pm IV 63
Density (25°C)/gcm-3 21
Melting point/ °C 3180
Boiling point / °C -5650
ΔHfus/kJmol-1 34(+/-4)
ΔHvap/kJmol-1 704
ΔHf(monoatomic gas)/kJmol-1 779(+/-8)
Electrical resistivity (20°C)/μohm cm 19.3
Electronegativity χ 1.9
Temperature (oC) @Vap. Pressure
10-8 Torr 1928
10-6 Torr 2207
10-4 Torr 2571
Techniques
Electron Beam Poor
Crucible -
Coil -
Boat -
Remarks
Fine wire will self-evaporate