[Technical Column] Selectivity of Ion Exchange Resins

It is necessary to select appropriately based on the properties of the solution, such as the pH of the aqueous solution and the type of metal ions to be removed!

There are various types of ion exchange resins, and to select the appropriate type, it is necessary to recognize their characteristics. One particularly important characteristic is called "selectivity," which can be described as the "preferences of the ions" for the ion exchange resin. Additionally, the ease of adsorption varies depending on the type of ion exchange resin and the type of ions it reacts with, with characteristics such as "ions with higher valence are easier to adsorb" and "for elements in the same group, ions with a larger atomic number are easier to adsorb." In this column, we will provide a detailed explanation with reference to the periodic table and the selectivity coefficients of cation exchange resins and anion exchange resins. *For more detailed content of the column, please refer to the related links. For further inquiries, feel free to contact us.

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