Separation and Purification Section

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Excerpt from Separation and Purification Section: Summary of Activities, July 1969 to June 1970The dependence of the swollen volume of an ion exchange resin upon humidity is believed to be a thermodynamic property and, therefore, path independent. The testing of this hypothesis has not been thoroughly examined beyond the initial studies of Boyd and Soldano [3] who first established experi mental consistency with isopiestic water vapor pressure equilibrations of various ion exchangers. At water vapor pressures corresponding to water activities of less than slower swelling or deswelling rates are expected. In addition, there is a possibility that repeated swelling cycles towards higher humidities could be influenced by resin structural changes.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.