THE MIGRATION CHEMISTRY OF STRONTIUM
The geochemical behaviour and the general properties as well as the chemistry of strontium has been reviewed with special emphasis on factors which may be of importance in controlling the environmental behaviour of this element. The chemistry of strontium is simple and predictable. Under geochemical conditions, strontium exists exclusively in the divalent state as Sr(II). The tendency of Sr(II) to form inorganic complexes is almost non-existant, and the ability of Sr(II) to form organic complexes is also very limited and of no geochemical consequence. Artificial chelating agents such as those of the EDTA family do yield mobile strontium complexes. The bulk of total is immobilized in nature either precipitated as insoluble carbonates, sulphates and phosphates or bound by isomorphous substitution in a number of minerals. The remainder of the total strontium in nature constitutes less than ten percent and embraces strontium added to the environment e.g. fallout strontium. This extractable strontium, which is present solely as Sr(II), is potentially highly mobile and resides in the soil solution and at ion exchange sites on soil particles. The migration of Sr(II) in the environment is determined not by the chemistry of strontium but by the composition of the surrounding media.
Bibliographic Reference: EUROPEAN APPLIED RESEARCH REPORTS + NUCLEAR SCIENCE AND TECHNOLOGY SECTION, VOL. 7 (1985), NO. 1, PP. 149-200, (EUR 9784 EN).
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Record Number: 1989124112700 / Last updated on: 1987-01-01
Available languages: en