Potassium is never found free in nature, but is obtained by electrolysis of the hydroxide, much in the same manner as ... As with other rare earths, compounds of these elements in solution have distinctive sharp spectral absorption bands or lines, ... Ion-exchange and solvent extraction techniques have led to much easier isolation of the rare earths and the cost has ... It is somewhat more resistant to corrosion in air than europium, lanthanum, cerium, or neodymium. but it does develop aanbsp;...
|Title||:||CRC Handbook of Chemistry and Physics|
|Author||:||David R. Lide|
|Publisher||:||CRC Press - 1993|