Abstract
Abstract The applicability of flow micro-calorimetry to the measurement of ion exchange heat was investigated by use of H-form resin of Dowex 50W×4 having a low degree of cross-linking. It was found that: accurate measurement of ion exchange heat can be performed by means of flow micro-calorimetry; the data obtained include additional heat effects such as heats of invasion and dilution; the effects can be exactly analyzed experimentally and eliminated for calibrating the data of pure ion exchange heat. The ion exchange heat thus obtained for the H-form resin and alkali metal ions was found to agree with the results obtained by means of heat of immersion measurements.
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