摘要
本文将气液色谱法用于测定环丁砜含盐溶液中以烃、芳烃、氯代烃、醇和酮为溶质的盐效应常数,结果表明,大多数溶质的盐效应关系可用Setschenow方程描述;负离子的性质对盐效应的影响比正离子更重要;负离子的电子向氯代烃中氯原子3d空轨道的迁移作用对其k_s的影响很大。
Gas-liquid chromatography was developed to measure the salt effect coefficients (ks) of some solutes, such as hydrocarbons, aromatic-hydrocarbons, chloro-hydrocarbons, alcohols and ke-tones, in salt-containing solutions of sulfolane at 333.15 K. The experimental results show that the salt effect relationship for the most of solutes can be presented by Setschenow's equation ; the properties of anions in the solution play a more important role for salt effect than those of cations; the charge transfer interaction of electrons from anions to 3d unoccupied orbitals.of Cl in chloro-hydrocarbons has a notable impact on k2. Furthermore, the dependance of ks, on the alcohol structure at the absence of the alcohol self- association, and the difference of ks between ketones and alcohols 'are also investigated.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
1990年第8期859-862,共4页
Chemical Journal of Chinese Universities
关键词
盐效应
气液色谱
非水溶液
环丁砜
Salt effect, Gas-liquid chromatography, Nonaqueous solution, Sulfolane
