Redox potentials are recorded for a series of identical samples of purified and presettled water exposed to ultraviolet radiation. It is found that within a few days the response of the aqueous system to the irradiation undergoes noticeable changes, including stepwise ones. Redox processes with the participation of dissociated molecules of water and atmospheric gases that occur at the measuring electrode surface are discussed. It is concluded that the redox reactions involving dissolved gases change the physicochemical state of the aqueous medium and its sensitivity to various kinds of exposure.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.