Przebieg ozonowania Tergitolu TMN6 w roztworach wodnych

The nonionic detergent, Tergitol TMN6, the product of the reaction of 2,6,8-trimethyl-4-nonanol with ethylene oxide, was ozonised in an aqueous solution. The efficiency of Tergitol TMN6 degradation was related to ozone concentration in the gas phase, initial concentration of the detergent and pH. The following analytical techniques were applied: paleography, UV-spectroscopy and COD determination. It was found that for the detergent concentration below critical micelle concentration (CMC) the reaction rate was linearly dependent on O3 concentration, as well as on detergent concentration raised to 1.4 power. For the detergent concentration above the CMC value the reaction rate 3 was slower. The highest rate of ozonation of Tergitol TMN6 brought about a decrease of pH (due to the oxidation of the aliphatic chains to carboxylic acids) and a slaw decrease of COD in the reaction mixture.