次氯酸钠溶液的氧化性研究  

Studies on the oxidizing property of sodium hypochlorite solution

作　　者：周相武[1] 汪晓军[1] 刘姣[1] 王炜[1] 

机构地区：[1]华南理工大学环境科学与工程学院,广东广州510641

出　　处：《氯碱工业》2006年第8期28-30,共3页Chlor-Alkali Industry

基　　金：2005年广东省工业攻关计划项目(项目编号2005B31101001)

摘　　要：实验研究了温度、有效氯含量、含盐量等因素对次氯酸钠溶液氧化性的影响。结果发现:常温常压下,漂水氧化还原电位主要受pH值控制,随着pH值的降低而升高;在pH值不变的情况下,漂水氧化还原电位与有效氯含量呈二次函数关系;漂水的稳定性与温度、pH值有很大的关系,在高温或低pH值的情况下极易分解,提高含盐量对提高其稳定性有一定帮助。The influences of such factors as temperature, active chlorine content, salt content on the oxidizing property of sodium hypochlorite solution are studied by experiments. The following results are found. The oxidation reduction potential of sodium hypochlorite solution is mainly controlled by pH value under room temperature and normal pressure and increases with the reduction of pH value. The relation between oxidation reduction potential of sodium hypochlorite solution and active chlorine content appears a quadratic function with unchanged pH value. The stability of sodium hypochlorite solution is greatly depended on temperature and pH value. Sodium hypochlorite tends to decompose very easily at the condition of high temperature or low pH value. The increase of salt content helps to improve its stability.

关 键 词：次氯酸钠 氧化还原电位 有效氯含量 

分 类 号：TQ124.44[化学工程—无机化工]