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The effect of salts on the ionisation of gelatin

Thimann, Kenneth V. (1930) The effect of salts on the ionisation of gelatin. Journal of General Physiology, 14 (2). pp. 215-222. ISSN 0022-1295. http://resolver.caltech.edu/CaltechAUTHORS:THIjgp30

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Abstract

The effect of the addition of sodium chloride to gelatin solutions is shown from the Donnan relationship to increase the ionisation of the gelatin, the increase produced in acid solutions reaching a maximum at about 1/1000 molar salt concentration. This effect is attributed to the formation of complex ions. From the similar action of calcium and copper chlorides the effective combining power of gelatin for complex positive ion formation is deduced. The bearing of complex ion formation on the zwitter-ionic structure and solubility phenomena of proteins is pointed out.


Item Type:Article
Additional Information:Copyright © 1930 by The Rockefeller University Press. (Accepted for publication, August 4, 1930) The author's thanks are due to Dr. M. Kunitz for directing his attention to some of the published measurements, to H. M. Winegarden, and particularly to Dr. H. Borsook for his helpful advice and criticism.
Record Number:CaltechAUTHORS:THIjgp30
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:THIjgp30
Alternative URL:http://www.jgp.org/cgi/content/abstract/14/2/215
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:10385
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:01 May 2008
Last Modified:26 Dec 2012 09:59

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