EFFECT OF SOME METAL-IONS ON THE COMPLEXATION OF STRONTIUM WITH HUMIC-ACID

Authors
HELAL AA ALY HF IMAM DM KHALIFA SM
Citation
Aa. Helal et al., EFFECT OF SOME METAL-IONS ON THE COMPLEXATION OF STRONTIUM WITH HUMIC-ACID, Journal of radioanalytical and nuclear chemistry, 227(1-2), 1998, pp. 49-53
Citations number
12
Categorie Soggetti
Chemistry Inorganic & Nuclear","Chemistry Analytical","Nuclear Sciences & Tecnology
Journal title
Journal of radioanalytical and nuclear chemistry → ACNP
ISSN journal
02365731
Volume
227
Issue
1-2
Year of publication
1998
Pages
49 - 53
Database
ISI
SICI code
0236-5731(1998)227:1-2<49:EOSMOT>2.0.ZU;2-#
Abstract
The formation of Sr-humate precipitate was studied colourimetrically a nd radiometrically at different pH's. It was found that, increasing of the Sr2+ concentration or the pH value of the solution increases the precipitated complex. The competition effect of Mg2+, Ca2+, Ni2+, and Ba2+ on the complexation of Sr2+ by humic acid indicated that both Mg2 + and Ni2+ substitute Sr2+ in humate complex, while Ba2+ has a very li ttle effect. In case of Ca2+, increasing of its concentration enhances the precipitation of Sr2+ with humic acid.