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.