Abstract
Abstract Ultrasonic absorption measurements in an aqueous solution of isopropyl alcohol were made in the frequency range from 5 to 220 MHz and in the concentration range from 3 to 10 M. The excess absorption which is characteristic of a single relaxation process was observed. The mechanism of the excess absorption was interpreted in terms of a reaction expressed by AB\ightleftharpoonsA+B, where A and B are monomeric molecules of alcohol and water respectively. The rate constants for forward and backward reactions were determined from the concentration dependences of the relaxation frequencies. The results obtained were compared with those of aqueous solutions of other alcohols which had already been published.
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