Molecular sieves vol 1 5 karge weitkamp vol 3 post synthesis modification i 2003

... radionuclide In general, the distribution coefficient KD of ion A is defined by the equilibrium ratio: K = c– /c ( 15 ) D A A The distribution coefficient is determined by two factors, selectivity... example, the chemical concentration of 13 7Cs in solution corresponding to an activity concentration of µCi dm 3 (which is typical in low-active waste) is ¥ 10 11 mol dm 3 Selectivity coefficients kCs/Na... a (4 .5. 8 )1 (4 .5 .12 )1 (5 212 )1 (5. 8 .12 )1- net containing four topologically distinct types of Tatoms [24] Similar considerations apply when one considers the 4-conn.3D nets that constitute molecular