次氯酸钠水溶液稳定性及增稠体系研究

研究了温度、pH值、金属离子和表面活性剂对次氯酸钠水溶液稳定性的影响。在 2 5℃以下 ,pH >12 4时次氯酸钠溶液较稳定 ;金属离子的存在促进其分解。并找到了能够在次氯酸钠中稳定存在的表面活性剂WC 2A1(十二烷基二苯醚二磺酸钠 )。同时对有效氯含量、非离子表面活性剂 (GMY)及阴离子表面活性剂 (L - 30 )、pH值对次氯酸钠水溶液黏度的影响作了研究 ,得出了所需黏度的配方 :w(GMY) =7%～ 8% ,w(L - 30 ) =2 %～ 3%。

Study of the Stability of Aqueous Sodium Hypochlorite Solution and Thickened System

The stability of aqueous NaClO solution at different temperature,pH and in presence of metal ions and surfactants was studied.It showed that at temperature below 25 ℃ and pH higher than 12.4,the solution was fairty stable,while the presence of metal ions increased the rate of decomposition.Dowfax 2Al(sodium dodecyldiphenylether disulfonate) is found to be a surfactant stable in the sodium hypochlorite solution.Furthermore,effects of effective chlorine concentration,surfactants and pH on the viscosity of hypochlorite solution were discussed and the composition of the thickened system was obtained,i.e., w (GMY)=7%-8%, w (L-30)=2%-3%.