盐酸溶液中Fe3+的水解聚合边界条件  

Boundary Conditions of Fe3+ Hydrolytic Polymerization in Hydrochloric Acid Solution

作　　者：陈锦 张虎[1] 宁勇智 王妍 CHEN Jin;ZHANG Hu;NING Yong-zhi;WANG Yan(China Institute of Atomic Energy,P. O. Box 275(26),Beijng 102413,China)

机构地区：[1]中国原子能科学研究院放射化学研究所

出　　处：《核化学与放射化学》2019年第3期255-259,共5页Journal of Nuclear and Radiochemistry

摘　　要：为了模拟Pu^4+水解聚合行为,采用动态光散射法研究了盐酸溶液中Fe^3+水解聚合边界条件,并采用热力学软件HSC Chemistry 6.0模拟计算了水解聚合过程中一些热力学函数值的变化。结果表明:在Fe^3+发生水解聚合反应时,溶液中的c0(H^+)、c(Fe^3+)和温度之间存在一定的关联性,提高Fe^3+浓度和升高温度会促进Fe^3+水解聚合反应;聚合胶体粒径随着Fe^3+浓度和温度升高而分布越广,且测得中值粒径在100~1000nm。In order to simulate the hydrolytic polymerization behavior of Pu^4+, the dynamic light scattering method was used to study the hydrolytic polymerization boundary conditions of Fe^3+ in hydrochloric acid solution, and the thermodynamic function of hydrolytic polymerization was calculated using thermodynamic software HSC Chemistry 6.0. The results show that there is a certain correlation between c0(H^+), c ( Fe^3+) and temperature in the hydrolysis polymerization of Fe^3+. Increasing Fe^3+ concentration and temperature will promote Fe^3+ hydrolysis polymerization. The particle size of the polymer colloid is more widely distributed with increasing Fe^3+ concentration and temperature, and the median particle diameter is between 100 nm and 1 000 nm.

关 键 词：动态光散射 FE^3+ 水解 聚合 

分 类 号：O614.81[理学—无机化学]