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    Rhenium Metal Powder
  • Description

    Retaining its crystalline structure at temperatures up to its melting point, rhenium is gray to black in powder form, silvery-white and lustrous as a solid. It does not occur naturally. Rhenium has one of the highest densities, exceeded only by platinum, iridium, and osmium. Only tungsten and carbon have higher melting points. Rhenium has good wear resistance and it can withstand arc corrosion. Rhenium's range of valences exceeds that of all other elements. We are a global leader in providing Rhenium chemicals required by manufacturers for critical parts and components. They are widely used in the production of high density, high temperature parts for aerospace, defense, energy and X-ray device industries. We supply three standard powders, Rhenium, Molybdenum-Rhenium and Tungsten-Rhenium.
    Chemical Name: Rhenium
    Chemical Formula: Re

    Specifications

    Atomic Number 75
    Molecular Weight (g/mol.) 186.2
    Apparent Density (g/cm3) 21.00 to 21.02
    Electronegativity  (Pauling scale) 1.9
    Specific Heat @25°C (cal/g-°C) 0.033
    Melting Point (°C) 3157 to 3181 
    Boiling Point (°C) 5900
    Thermal Conductivity (cal/s-cm°C) 0.095
    Electrical Resistivity 18.7 to 20.0
    Fracture Toughness 120 to 150
    Poisson Ratio 0.3
    Mohs hardness 7
    Crystallography hexagonal structure
    Trace impurities (%, max)
    Element 4N Grade 5N Grade Element 4N Grade 5N Grade
    Na 0.0010 0.0001 Ni 0.0001 0.00001
    Mg 0.0001 0.00001 Cu 0.0001 0.00001
    Al 0.0001 0.00001 Zn 0.0001 0.00001
    Si 0.0005 0.00005 As 0.0001 0.00001
    P 0.0001 0.00005 Zr 0.0001 0.00001
    K 0.0010 0.0001 Mo 0.0010 0.0002
    Ca 0.0005 0.00005 Cd 0.0001 0.00001
    Ti 0.0001 0.00001 Sn 0.0001 0.00001
    V 0.0001 0.00001 Sb 0.0001 0.00001
    Cr 0.0001 0.00001 Ta 0.0001 0.00001
    Mn 0.0001 0.00001 W 0.0010 0.0002
    Fe 0.0005 0.00005 Pb 0.0001 0.00001
    Co 0.0001 0.00001 Bi 0.0001 0.00001
    Se 0.0001 0.00001 Tl 0.0001 0.00001
    Gas element (%, max)
    O 0.1 0.06 C 0.005 0.002
    N 0.003 0.003 H 0.002 0.002

    Chemical Properties

    4N Grade Re ≥99.99% (calculated by subtraction method, except gas element).
    5N Grade Re ≥99.999% (calculated by subtraction method, except gas element).

    Physical Properties

    Particle size: -200 mesh, providing laser particle size distribution test report or AEM photos as per customer’s request.

    Typical Applications

    Rhenium is used in platinum-rhenium catalysts which in turn are primarily used in making lead-free, high-octane gasoline and in high-temperature superalloys that are used to make jet engine parts. Other uses:
    1) Widely used as filaments in mass spectrographs and in ion gauges.
    2) An additive to tungsten and molybdenum-based alloys to increase ductility in these alloys.
    3) An additive to tungsten in some x-ray sources.
    4) Rhenium catalysts are very resistant to chemical poisoning, and so are used in certain kinds of hydrogenation reactions.
    5) Electrical contact material due to its good wear resistance and ability to withstand arc corrosion.
    6) Thermocouples containing alloys of rhenium and tungsten are used to measure temperatures up to 2200 °C.
    7) Rhenium wire is used in photoflash lamps in photography.
    8) Rhenium forms rhenium diboride with boron.
    9) It is a compound noted for its extreme hardness.
    10) Isotopes of rhenium are radioactive. The 188 isotope, with a half-life of 69 days, has been tested for treatment of liver cancer. The 188 isotope may be obtained in the form of a generator.
    11) Related by periodic trends, rhenium has a similar chemistry with technetium; work done to label rhenium onto target compounds can often be translated to technetium. This is useful for radiopharmacy, where it is difficult to work with technetium - especially the 99m isotope used in medicine - due to its expense and short half-life.
    12) For use in booster rocket engines

    Packaging

    Usually to customer specification

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