Nanografi Nanotechnology

Lanthanum(La) is the one of the rare earth element with atomic number 57. Lanthanum is a soft, ductile, slivery-white metal. Lanthanum was first found by in 1839 by Swedish chemist Cari Gustav Mosander in cerium nitrate as an impurity. From Ancient Greek “lanthenein” means hidden. Although Lanthanium classified as rare earth metal, it is the 28 th  most abundant element in Earth’s crust. Lanthanum makes up about quarter of lanthanide component in minerals such as monazite and bastnasite. In addition, Lanthanum is the 3 rd -most abundant of all lanthanides making up 39 mg/kg of the earth crust. The pure Lanthanum could be produced by electrolysis of anhydrous lanthanum chloride (LaCl 3 ) and sodium or potassium chloride (NaCl or KCl) at elevated temperatures. Even lanthanum has almost no commercial use, its alloys have a variety of applications.Lanthanum mixtures and compounds have numerous uses as catalysts, additive glass, carbon arc lamps for studio lights and projectors incr...