DURATION OF OZONE IN WATER IN THE UPPER SOLUBILITY RANGE

A series of kinetic experiments with aqueous ozone solutions showed that the equation, n c o ‐ n c = kt, was approximately linear over a period of several hours. The straight‐line segment of this function was extrapolated to 0 hr, and the slope for each extrapolated straight line, representing k, was derived. It was then possible to calculate residual concentrations (c) from corrected c o values. Fifty such calculations resulted in an average of 55% retention of ozone concentration in the upper solubillty range at the end of the first hour. This residue required more than 8 hr for complete disappearance. There was a significant increase in ozone concentration upon small additions of acetic acid to water. In contrast, sodium chloride at a certain concentration accelerated the loss of ozone from solution.