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    Niobium Pentoxide (Nb2O5)

    Description of Niobium Pentoxide

    Niobium pentoxide is the inorganic compound with the formula Nb2O5. It is a colorless insoluble solid that is fairly unreactive. It is the main precursor to all materials made of niobium, the dominant application being alloys, but other specialized applications include capacitors, lithium niobate, and optical glasses.

    Physical and Hazardous Characteristics:

    Sum Formula Nb2O5 Melting Point 1520°C
    Molecular Weight 265,82 g/mol Boiling Point N/A
    Density 4,470 g/ml Flash Point N/A
    Particle Size Screening Fraction min. 99,7 % less than 45 micron Particle Size Distribution d50 / 0.4 -0.9 micron
  • Specifications:

    Description Purity (Impurities in Oxides)
    Niobium (V) Oxide Powder Nb2O5 > 99% (metals basis)
    Ta < 0.2%, W < 0.005%, Si < 0.02%, Fe < 0.02%
    Niobium (V) Oxide Powder Nb2O5 > 99.5% (metals basis)
    Ta < 0.2%, W < 0.005%, Si < 0.02%, Fe < 0.02%
    Niobium (V) Oxide Powder Nb2O5>99.9% (metals basis)
    Ta<0.08%, W<0.003%, Si<0.005%, Fe<0.005%
    High Purity Niobium (V) Oxide Powder Nb2O5 > 99.95% (metals basis)
    Ta < 100 ppm, W < 10 ppm, Si < 50 ppm, Fe < 10 ppm
    High Purity Niobium (V) Oxide Powder Nb2O5 > 99.99% (metals basis)
    Ta < 20 ppm, W < 5 ppm, Si < 13 ppm, Fe < 5 ppm
    High Purity Niobium (V) Oxide Powder Nb2O5 > 99.999% (metals basis)
    Ta < 15 ppm, W < 3 ppm, Si < 7 ppm, Fe < 2 ppm

    Applications:

    Niobium pentoxide (Nb2O5) is used mainly in the production of niobium metal, but specialized applications exist for lithium niobate and as a component of optical glass.

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