摘要
完全互溶的双液系在一定条件下发生相变而成为部分互溶体系.六十年代,李俊甫等曾研究过盐的加入对相变条件的影响,提出了线性方程:T=T_0+Kx_x。(T_0,T分别为双液比固定时加盐前后体系的相变温度,x_s为盐的摩尔分数,K为常数).但至今尚无人从理论上证明其存在并加以计算.本文试从微扰理论出发证明该线性方程成立,并对部分体系进行计算。
The linear equation of salt effect on phase transformation in the mixtures ofnonpolar-nonpolar system and nonpolar-polar system can be proved with the aid ofperturbation expansion. The cause of linear equation has been discussed from ther-modynamics. By introducing the expanding boundary function, we calculatedphase transformation temperatures for a number of systems in which the phenomenonof seperating phase has been observed and compared with experiments.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
1990年第2期246-251,共6页
Acta Physico-Chimica Sinica
基金
中国科学院科学基金
