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对水+3-甲基吡啶+溴化钠三元电解质溶液的临界跨接行为的认识存在着争议.部分研究认为由于三甲基吡啶的聚集,体系存在从非经典的3D-Ising(三维伊辛)行为向经典的平均场行为的非单调跨接;另一部分研究发现该体系符合3D-Ising临界行为,并不存在跨接.采用动-静态光散射研究了溴化钠,3-甲基吡啶和水三元溶液的临界性质,得到动态关联长度和静态关联长度,发现动态关联长度和静态关联长度一致,且在实验温度范围内(离临界温度0.01～25K),体系不违背3D-Ising行为,也观测不到显著的临界跨接现象。
There is controversy about the critical bridging behavior of water + 3-picoline + sodium bromide ternary electrolyte solution.Particular studies suggest that due to the aggregation of collidine, the existence of non-classical 3D-Ising Symplectic) behavior to the classical average field behavior. Another part of the study found that the system is consistent with the 3D-Ising critical behavior, and there is no bridging. By using the dynamic-static light scattering, sodium bromide, 3-methyl Pyridine and water ternary solution, the dynamic correlation length and the static correlation length were obtained. The dynamic correlation length and the static correlation length were found to be in agreement with each other. And in the experimental temperature range (from the critical temperature of 0.01 ~ 25K), the system does not violate the 3D-Ising Behavior, there is no significant critical crossover observed.