提高次氯酸钠稳定性的研究  

STUDY ON THE STABILITY OF SODIUM HYPOCHLORITE SOLUTION

作　　者：苏秀霞[1] 姚宝晶[1] 赵艳[1] 

机构地区：[1]陕西科技大学化学与化工学院,陕西西安710021

出　　处：《陕西科技大学学报（自然科学版）》2010年第6期65-68,共4页Journal of Shaanxi University of Science & Technology

基　　金：陕西省教育厅专项科研基金资助项目(2006JK354)

摘　　要：通过比较Na2Si O3,Na2CO3,NaHCO3,KBr,NaCl等对次氯酸钠溶液在80℃情况下放置6 h后有效氯浓度的变化情况,研究了其对次氯酸钠溶液稳定性的影响.结果表明:每100 g次氯酸钠溶液中加入0.03 g Na2Si O3和0.1 g Na2CO3作为复配稳定剂时溶液的稳定性较好,溶液的有效氯浓度仅仅降低了0.05%,而不加任何稳定剂的相同溶液其有效氯浓度降低则达到了3.5%左右,效果相当明显.The stability of aqueous sodium hypochlorite solution was studied,the effect of sodium silicate,sodium carbonate,sodium bicarbonate,potassium bromide,sodium chloride on the stability of sodium hypochlorite solution were investigated and its available chlorine stability was observed.The results showed that the solution was fairly stable when we add 0.03 g sodium silicate and 0.1 g sodium carbonate into every 100 g sodium hypochlorite solution,the available chlorine contents of the sodium hypochlorite solution decreased by less than 0.05% at 80 ℃ for 6 hours,while we added nothing into the sodium hypochlorite solution,The available chlorine contents of the sodium hypochlorite solution decreased by 3.5% at 80 ℃ for 6 hours.The effect is obvious,so sodium silicate and sodium carbonate can be the better stabilizer for aqueous sodium hypochlorite solution stability.

关 键 词：次氯酸钠溶液 有效氯 稳定性 

分 类 号：TQ131.1[化学工程—无机化工]