高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (8): 857.

• 研究简报 • 上一篇    下一篇

有机溶剂化效应对多元络合物显色反应作用的研究(Ⅱ)——有机溶剂对络天青S在胶束相分配系数的影响

朱有瑜, 叶晓岚   

  1. 杭州大学化学系
  • 收稿日期:1987-12-09 出版日期:1989-08-24 发布日期:1989-08-24
  • 通讯作者: 朱有瑜

Studies on Solvation Effect on Colour Reactionof Multicomponent Complexes (Ⅱ) ——The Effects of Organic Solvents on Distribution Constants of Chrome Azurol S Between Micellar Phase and Water

Zhu Youyu, Yie Xiaolan   

  1. Department of Chemistry, Hangzhou University, Hangzhau
  • Received:1987-12-09 Online:1989-08-24 Published:1989-08-24

关键词: 铬天青S, 有机溶剂, 溴化十六烷基三甲铵, 分配系数, 分光光度法

Abstract: The distribution constants (KD) of CAS (HR3-) between micellar (CTMAB) and aqueous phase in the presence of organic solvents (DMSO, MeOH, EtOH, Me2CO, i-PrOH, Dioxane) were determined by spectrophotometric method.The KDof the systems in the presence of organic solvent is higher than that of the systems without the presence of organic solvents.This indicates that the organic solvents increase the effective concentration of CAS (HR3-) on the surface of the micelle, which is beneficial to colour reaction.The relationship between the distribution constant and sensitivity of colour reaction is studied in detail.

Key words: Chrome azurol S, Organic solvents, CTMAB, Distribution constants, Spectrophotometric method

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