Abstract

An experimental study of the equilibrium distribution of cations in the system of Dowex 50 sulfonic cation exchanger and an aqueous solution of picolinic acid and iron chloride was carried out. A high concentration of iron and picolinic acid complexes was obtained in the Dowex 50 sulfonic cationite phase. The possibility of calculating the equilibrium counterionic composition of Dowex 50 sulfonic cationite from the equilibrium constants of binary ion exchanges and the known composition of the solution is shown. Sulfocationite Dowex 50 is proposed as a container for biologically active preparations based on picolinic acid and Fe³⁺ cations.

中文翻译：

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亚磺酸盐 Dowex 50 对吡啶甲酸和铁 (III) 的吸附

摘要

对Dowex 50磺酸型阳离子交换剂和吡啶甲酸和氯化铁水溶液体系中阳离子的平衡分布进行了实验研究。在 Dowex 50 磺酸阳离子阳离子相中获得了高浓度的铁和吡啶甲酸络合物。显示了根据二元离子交换的平衡常数和已知的溶液组成计算 Dowex 50 磺酸阳离子的平衡抗衡离子组成的可能性。Sulfocationite Dowex 50 被建议作为基于吡啶甲酸和 Fe ³⁺阳离子的生物活性制剂的容器。