| Meng Xiaoguang,Zhang Zhengbin,Liu Liansheng. 1988. A study on the exchange additivity of zinc in solid mixtures in seawater——Ⅰ. Exchange additivity of mixtures. Acta Oceanologica Sinica, (2):253－260 |
| A study on the exchange additivity of zinc in solid mixtures in seawater——Ⅰ. Exchange additivity of mixtures |
| A study on the exchange additivity of zinc in solid mixtures in seawater——Ⅰ. Exchange additivity of mixtures |
| Received:May 23, 1987 Revised:July 17, 1987 |
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| 基金项目:The Project Supported by the National Natural Science Foundation of China. |
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| Abstract: |
| Exchange additivity of binary mixtures of hydrous metal oxides and clay minerals has been studied by investigating the relations of the zinc exchange-pH and the zinc partition coefficients to mixtures. The additive exchange equation is proposed to describe the exchange-pH relationship. The results suggest that zinc exchanges on the components in amorphous iron oxide/montmorrillonite, kaolinite/montmorrillonite, γ-Al00H/montmorrillonite, amorphous iron oxide/illite mixtures are additive. But the exchange of δ-MnO2/montmorrillonite is much less than its additive exchange. It is also shown that in the case of additive exchange the exchange parameters (Kmix{→SOH}Tmix) of the mixtures are equal in weight to the sum of those of each component of the solid mixtures. |
| 中文摘要: |
| Exchange additivity of binary mixtures of hydrous metal oxides and clay minerals has been studied by investigating the relations of the zinc exchange-pH and the zinc partition coefficients to mixtures. The additive exchange equation is proposed to describe the exchange-pH relationship. The results suggest that zinc exchanges on the components in amorphous iron oxide/montmorrillonite, kaolinite/montmorrillonite, γ-Al00H/montmorrillonite, amorphous iron oxide/illite mixtures are additive. But the exchange of δ-MnO2/montmorrillonite is much less than its additive exchange. It is also shown that in the case of additive exchange the exchange parameters (Kmix{→SOH}Tmix) of the mixtures are equal in weight to the sum of those of each component of the solid mixtures. |
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