- 作者: A. A. El-Harakany; M. Sh. Ramadan
- 作者服務機構: Chemistry Department-Faculty of Science Alexandria University, Alexandria, Egypt
- 中文摘要:
A spectrophotometric method has been used for the determination of the dissociation constant of P-nitroaniline indicator (which has a charge type A/sup +/B/sup 0/) in various THF-water solvent mixtures at 25.degree.C. The dissociation constant is found to decrease with the addition of THF which indicated that the basicity of the medium is increased by the addition of the organic solvent.
The relative basicity of the medium is compared with other aqueous-organic solvent mixtures and the trend of decreasing basicity is in the order THF-H/sub 2/O>DMF-H/sub 2/O>AN-H/sub 2/O>HAC-H/sub 2/O. - 英文摘要: --
- 中文關鍵字: Dissociation constant; acidity function; ion-solvent interaction; thermodynamics of dissociation; ionization; solvent effect.
- 英文關鍵字: Dissociation constant; acidity function; ion-solvent interaction; thermodynamics of dissociation; ionization; solvent effect.