Resolution of acid strength in tetrahydrofuran of substituted benzoic acids
✍ Scribed by J. Barbosa; D. Barrón; E. Bosch; M. Rosés
- Publisher
- Elsevier Science
- Year
- 1992
- Tongue
- English
- Weight
- 672 KB
- Volume
- 265
- Category
- Article
- ISSN
- 0003-2670
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✦ Synopsis
Dlssoclatlon constants of a senes of substituted benzolc acids and then tetrabutylammomum salts were determmed m tetrahydrofuran by potentlometrlc and conductlmetnc methods A comparison of the pK, values of the acids with those obtamed m other amptnprotlc and aprotlc media showed the better resolution of acid strength m tetrahydrofuran
📜 SIMILAR VOLUMES
The dissociation equilibria of substituted benzoic acids in cationic and anionic micellar systems, investigated potentiometrically. show pK shifts of less than 1.0 in cationic and 0.5-3 in anionic micelles. Visual titrations of otherwise insoluble acids in cntionic micelles give satisfactory results
The equivalence between the resolution of the acid strength in a given solvent and the ratio (p\*/p) of Hammett's reaction constants for the solvent and water was obtained on the basis of empirical linear free energy relationships (LFER). The resolution for benzoic acids in a number of solvents from
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