Abstract Solubility experiments with binary series of OH-, Cl-, SO4- and CO3-AFm were re-examined with a non-ideal, multicomponent solid solution model. The electrical double layer on the mineral's outer surface, which neutralizes about 5% of the anionic charge, can be included. The choice of the end-members in the solid solution and the reaction formulation can help to eliminate the ‘non-ideality’ for OH-SO4 and Cl-OH exchange. CO3-Cl-OH exchange is not ideal in the solubility experiments, nor can it be, because the mineral volume is not a linear combination of the end-members. The solubilities of the end-members are related to the anion charge and inversely to the anion-layer thickness. OH is part of the anion-charge, even when a pure, other anion form is the target of the synthesis. Pure OH-AFm is unstable and converts into hydrogarnet and portlandite, depending on the precipitation rate of hydrogarnet.

中文翻译：

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根据溶解度实验和晶体学信息定义的 AFm（水铝钙石族）矿物的阴离子交换特性

摘要 使用非理想的多组分固溶体模型重新检验了 OH-、Cl-、SO4- 和 CO3-AFm 二元系列的溶解度实验。可以包括矿物外表面上的双电层，它可以中和约 5% 的阴离子电荷。固溶体中端元的选择和反应公式有助于消除 OH-SO4 和 Cl-OH 交换的“非理想性”。CO3-Cl-OH 交换在溶解度实验中并不理想，也不可能，因为矿物体积不是端元的线性组合。端元的溶解度与阴离子电荷有关，与阴离子层厚度成反比。OH 是阴离子电荷的一部分，即使是纯的其他阴离子形式是合成的目标。