Na_2CO_3/H_2O_2“稳定”的CO_2的型体研究(Ⅰ)——“稳定性二氧化氯”溶液中氯氧化物的类型及性能分析

THE SPECIES AND THE PERFORMANCE ANALYSIS OF OXYCHLO-RIDE IN THE “STABILIZED CHLORINE DIOXIDE” SOLUTION

本文对以稳定剂H_2O_2和Na_2CO_3与ClO_2制备的所谓“稳定性二氧化氯” 溶液中ClO_2存在型体及碳酸盐存在型体进行了分析,同时对“稳定性二氧化氯”的热稳定性、酸活化影响因素以及杀菌效果等方面进行了研究,并与纯NaClO_2和ClO_2进行了对比.结果表明:“稳定性二氧化氯”溶液中ClO_2是以亚氯酸盐ClO_2^-型体存在,碳酸盐是以碳酸氢盐型体存在.又通过理论分析证明“稳定性二氧化氯”溶液制备过程中ClO_2与H_2O_2和Na_2CO_3发生了氧化还原和质子传递反应,生成了亚氯酸盐ClO_2^-和碳酸氢盐HCO_3^-,并有O_2放出.因此,认为“稳定性二氧比氯”溶液是ClO_2与H_2O_2和Na_2CO_3反应生成的ClO_2^-和HCO_3^-的混合溶液.

In this paper, the existential pattern of chlorine dioxide and carbonate in the "stabilized chlorine dioxide" solution prepared with H2O2, Na2CO3 and ClO2 was studied. Furthermore, tests for the thermal stability, the influence of different factor on the activation and the disinfection effect on bacteria of the "stabilized chlorine dioxide" were carried out and compared with those of sodium chlorite and chlorine dioxide solution. The results show that chlorine dioxide and carbonate exist as the pattern of ClO2- and HCO3- in the "stabilized chlorine dioxide" solution, respectively. It was proved that ClO2 had reacted with H2O2 and Na2CO3 in the "stabilized chlorine dioxide" solution and produced chlorite ClO2- and bicarbonate HCO3- , and given off O2 by oxidation-reduction/proton transport reaction. So it was believed the so called "stabilized chlorine dioxide" is a mixture of ClO2- and HCO3-.