Niobium, formerly columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41.
N 7762 (OTTO) Niobium wire, 0.25mm (0.01in) dia, 99.99% Cas 7440-03-1 - used in a vast array of applications. Some of these uses include sodium vapor lamps, HD television back lighting, capacitors, jewellery and chemical processing equipment.