Enthalpies of Anion Exchange of Chloride by Pyridinecarboxylate in AV-17-8 Anionite

Autor: E. V. Ostapova, G. N. Al’tshuler, O. G. Al’tshuler
Rok vydání: 2019
Předmět:
Zdroj: Russian Journal of Physical Chemistry A. 93:743-747
ISSN: 1531-863X
0036-0244
DOI: 10.1134/s0036024419040034
Popis: Enthalpies of Cl– anion exchange for anions of nicotinic, isonicotinic, dipicolinic, and cinchomeronic acids on the strongly basic anionite AV-17-8 are measured at 298 K by means of microcalorimetry. Partial and standard enthalpies of sorption of pyridinecarboxylic acid anions on the Cl-form of AV-17-8 anionite from aqueous solutions are determined. The values of standard enthalpies lie in the range 3–14 kJ/mol, increasing in the order nicotinate, isonicotinate, dipicolinic acid anions, and cinchomeronic acid anions.
Databáze: OpenAIRE