The dissociation constants of the methylammonium ions and the basic strengths of the methylamines in water

Autor:	Douglas Hugh Everett, W. F. K. Wynne-Jones
Rok vydání:	1941
Předmět:	Dissociation constant General Energy Chemistry Ionization Inorganic chemistry Physics::Atomic and Molecular Clusters Thermodynamics Free energies Physics::Chemical Physics Methylamines Heat capacity Dissociation (chemistry) Ion
Zdroj:	Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences. 177:499-516
ISSN:	2053-9169 0080-4630
DOI:	10.1098/rspa.1941.0037
Popis:	The dissociation constants of the three substituted methylam monium ions have been determined in water at 10° intervals from 0 to 50° C. From these results values have been derived and tabulated for the free energies of dissociation, heats of dissociation, entropies of dissociation and the heat capacity changes for these ions, as well as the corresponding quantities for the ionization of the amines. The heat capacity changes are discussed and it is shown that they can not be interpreted by simple electrostatic theory . It is shown that the anomalous order of the basic strengths of the amines probably disappears at low temperatures.
Databáze:	OpenAIRE
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