THE STABILITY IN WATER OF A NEW CHLORAMINE DISINFECTANT1

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Abstract
The stability in water of a novel new chloramine agent, 3‐chloro‐4, 4‐dimethyl‐2‐oxazolidinone (agent I), which is an excellent water disinfectant, has been compared to the stabilities of several other water disinfectants. The agents tested in addition to agent I included N‐chlorosuccinimide, 2, 4‐dichloro‐5, 5‐dimethylhydantoin, tichloroisocyanuric acid, calcium hypochlorite, commercial grade HTH, and household bleach. The total chlorine content of a water solution of agent I in a demand free environment remains constant over a period of at least eight weeks, while that for all of the other agents declines markedly over that time period. An explanation for these observations will be offered. Prior work in these laboratories concerning use of agent I as a disinfectant for lake water in a laboratory scale treatment plant had shown that agent I has considerable potential for use as an alternative to chlorine gas for water disinfection.