Conclusions
-
1.
The acidity function H0 of aqueous solutions of HCl (up to 9.33%) at 50°C was measured by the indicator method (indicators-4- and 2-nitroanilines). It was shown that the H0 of these solutions at 25 and 50°C are equal for the same HCl content in the solution.
-
2.
The ionization of 4-nitroaniline was studied in aqueous-ethanol solutions of HCl at 16.35; 25.32; 54.27% EtOH at 50°C. It was found that as at 25°C, the acidity functions of the aqueous and aqueous-ethanol solutions of HCl are equal at the same concentration of the acid, expressed on molar ratios scale m. A standard state for each composition of the solvent is an infinitely dilute solution of an acid in this solvent.
Similar content being viewed by others
Literature cited
S. G. Sysoeva, I. S. Kislina, and M. I. Vinnik, Izv. Akad. Nauk SSSR, Ser. Khim., 286 (1987).
Collection: Synthesis of Organic Preparations [Russian translation], Vol. 1, Inostr. Lit., Moscow (1949), p. 239.
C. D. Johnson, A. R. Katritzky, and S. A. Shapiro, J. Am. Chem. Soc.,96, 6654 (1969).
E. M. Arnett and G. W. Mach, J. Am. Chem. Soc.,88, 1117 (1966).
A. I. Gel'bshtein, G. G. Shcheglova, and M. M. Temkin, Zh. Neorg. Khim.,1, 282 (1956).
M. A. Paul, J. Am. Chem. Soc.,76, 3236 (1954).
W. N. White, Th. Vogelmann, M. Morse, and H. S. White, J. Org. Chem.,42, 162 (1977).
Author information
Authors and Affiliations
Additional information
Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2711–2715, December, 1987.
Rights and permissions
About this article
Cite this article
Sysoeva, S.G., Kislina, I.S. & Vinnik, M.I. Acidity functions H0 of aqueous and aqueous-ethanol solutions of HCl at 50°C. Russ Chem Bull 36, 2513–2516 (1987). https://doi.org/10.1007/BF00957223
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00957223