HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Uehara, G. Articles by Mortland, M. M. Search for Related Content PubMed Articles by Uehara, G. Articles by Mortland, M. M. Agricola Articles by Uehara, G. Articles by Mortland, M. M.

Activity Measurements in Water and Clay-Water Systems With Tertiary Electrodes¹

ABSTRACT

A tertiary amalgam electrode was utilized in the measurement of CaCl₂ and Ca⁺⁺ activities. Activity coefficients from electromotive force data compared favorably with those in the literature. The relative influence of various metal ion salts on the CaCl₂ and Ca⁺⁺ activities followed the sequence Rb Mg > K > Na > Li for both kaolinite and Wyoming bentonite. The activities of CaCl₂ and Ca⁺⁺ in bentonite-kaolinite mixtures differed from predicted activity values based on pure clay systems.

¹ Authorized for publication by the Director as Journal Article No. 2532 of the Michigan Agr. Exp. Sta., East Lansing. Presented before Div. II, Soil Science Society of America, Cincinnati, Ohio, Nov. 18, 1959. A portion of a thesis by the senior author presented in partial fulfillment of the requirements for the Ph.D. degree at Michigan State University.

² Assistant Professor, University of Hawaii (formerly research assistant, Michigan State University), and Associate Professor, respectively.

Received for publication December 16, 1959. Accepted for publication January 15, 1960.