amount of egk taa was 0 03 weight of the dry oven dry weight of the pulp the amount of chlorine dioxide was varied as shown in the tables 2 through 5 the egk taa chlorine dioxide mixture was injected into the mixer while it was being stirred time 0 is the time that the injection of the mixture started at the end of the reaction time the stabilizing mixture was pressure injected into the pulp to quench the stage 1 oxidation and start the stage 2 stabilization the pulp was stabilized with 0 5 hooh and 3 9 sulfuric acid ph lt 4 for 1 hours the ph was not measured but based on earlier experience the ph would have been below 4 and was probably between 2 and 3 there was a yellow color indicating the regeneration of chlorine dioxide by the reaction of chlorite with aldehyde groups which also indicated that the ph was below 4 each sample was stabilized for about 1 hour the stabilization temperature was targeted to be either 50 u00b0 c or 70 u00b0 c all samples were washed with di water treated with naoh to convert the carboxylic acid groups on the pulp to the sodium salt form and washed the samples were analyzed for carboxyl viscosity brightness and brightness reversion the control was the uncarboxylated pulp the carboxyl content viscosity brightness and brightness reversion are shown in table 1 the results of the 70 u00b0 c tests are shown in table 2 and the.