Publication Date:
1988-03-01
Description:
AbstarctThe study of M and Mg ion exchange (M = Co, Ni, Cu, Zn), between silicate gels SiO2.q(M, Mg)O.nH2O and amino acid (glycine) saline aqueous solutions (M, Mg)SO4, shows that the introduction of the complexing agent completely upsets the original distribution equilibria of M and Mg between the two types of phases. The values of the measured bulk distribution coefficientare lowered considerably relative to the inorganic reference distribution coefficients. The lowering of D may be accounted for by calculating the contents of the different species, MA, MA+, M2+, under which the metallic element M is present in the solutions. The values ofresulting from the calculated M2+ contents are identical to the values of Dref, determined in systems without a complexing agent.
Print ISSN:
0009-8558
Electronic ISSN:
1471-8030
Topics:
Geosciences
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