ION TRANSFER OF BROMOCRESOL PURPLE ACROSS THE LIQUID/LIQUID INTERFACES  

作　　者：汪尔康 孙志胜 

机构地区：[1]Chengchun Institute of Applied Chemistry, Academia Sinica

出　　处：《Science China Chemistry》1989年第3期268-277,共10页中国科学（化学英文版）

基　　金：Project supported by the National Natural Science Foundation of China

摘　　要：In this paper, the ion transfer process of bromocresol purple(BCP) across the liquid/liquid interface has been described. The effects of the supporting eletrolyte in two phases and solvent on the transfer behavior of bromocresol purple have been investigated in detail and the relationship between the ion transfer and concentration of electrolytes in the organic phase is explained in terms of the dissociation of TBA^+ anti TPB^- in the organic phase. The proposed transfer mechanism for BCP has been proved to be reasonable by UV-spectroscopy of the products of the electrolysis in aqueous phase. The standard potential differences △_0~wφ~0 and standard Gibbs energies △_0~WG^0 of BCP transfer from water to some organic solvents are calculated. The dissociation constants of BCP obtained are in agreement with the literature values.In this paper, the ion transfer process of bromocresol purple（BCP） across the liquid/liquid interface has been described. The effects of the supporting eletrolyte in two phases and solvent on the transfer behavior of bromocresol purple have been investigated in detail and the relationship between the ion transfer and concentration of electrolytes in the organic phase is explained in terms of the dissociation of TBA⁺ anti TPB^- in the organic phase. The proposed transfer mechanism for BCP has been proved to be reasonable by UV-spectroscopy of the products of the electrolysis in aqueous phase. The standard potential differences △₀^wφ⁰ and standard Gibbs energies △₀^WG⁰ of BCP transfer from water to some organic solvents are calculated. The dissociation constants of BCP obtained are in agreement with the literature values.

关 键 词：bromocresol PURPLE ion TRANSFER liquid/liquid interface CYCLIC voltammetry. 

分 类 号：O6[理学—化学]