CALCIUM-MAGNESIUM EXCHANGE ON ILLITE IN THE PRESENCE OF ADSORBED SODIUM.

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作者：
Sposito, Garrison [1 ]
LeVesque, C.S. [1 ]
Hesterberg, Dean [1 ]
机构：
[1] Univ of California, Riverside, CA,, USA, Univ of California, Riverside, CA, USA
来源：
| 1600年 / 50期
关键词：
CALCIUM COMPOUNDS - Monitoring - SODIUM COMPOUNDS - Adsorption - SUSPENSIONS;
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摘要：
Binary and ternary cation exchange experiments were performed with Na** plus , Ca**2** plus , and Mg**2** plus on Silver Hill illite and on a soil illite suspended in 50 mol m** minus **3 perchlorate at pH 7. The binary experiments indicate no preference for Ca over Mg on the specimen illite, but selectivity for bivalent cations over Na** plus and for Ca**2** plus over Mg**2** plus on the soil illite. The ternary exchange data showed that, for both illites, there was no effect of adsorbed Na on the Ca-Mg exchange isotherm at exchangeable sodium percentages from 0 to 30%, either for freshly-prepared clay suspensions or for those aged up to 270 d in NaClO//4.
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