摘要
评述了次氯酸钠水溶液稳定性的研究进展。次氯酸钠的不稳定性是由于次氯酸根离子价层电子对空间构型的高度不对称性和次氯酸根离子中阳离子C l+的高离子势所决定的。介绍了次氯酸钠分解反应的热力学性质和动力学性质;讨论了温度、溶液的pH、重金属离子、稳定剂对次氯酸钠水溶液稳定性的影响。指出降低次氯酸钠溶液的浓度,低温和避光储存,控制次氯酸钠溶液的酸度及添加稳定剂是提高次氯酸钠水溶液稳定性的有效途径。
The research progress of the stability of aqueous sodium hypochlorite solution was reviewed. The unstability of NaCIO was due to the high nonsymmetry of spatial configuration of its ClO^- anion＇s valence - shell electrons and the higher ion potential of Cl ^＋ cation in ClO^-. The thermodynamic and kinetic properties of decomposition reaction of NaClO were introduced, and the effects of temperature, pH, types and concentration of metal ions and stabilizers on the stability of sodium hypochlorite solution were discussed. It indicated that decreasing the concentration of NaClO solution, storing at the lower temperature and gloomy condition , controlling the reasonable pH value and adding stabilizers were effective methods to improve the stability of NaCIO solution.
出处
《无机盐工业》
CAS
北大核心
2007年第9期12-14,30,共4页
Inorganic Chemicals Industry
关键词
次氯酸钠
稳定性
分解反应
稳定剂
sodium hypochlorite
stability
decomposition reaction
stabilizer
