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Activity Measurements in Water and Clay‐Water Systems With Tertiary Electrodes
Author(s) -
Uehara Goro,
Mortland M. M.
Publication year - 1960
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1960.03615995002400040014x
Subject(s) - kaolinite , bentonite , electromotive force , clay minerals , chemistry , metal , mineralogy , inorganic chemistry , geology , geotechnical engineering , physics , organic chemistry , quantum mechanics
A tertiary amalgam electrode was utilized in the measurement of CaCl 2 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 CaCl 2 and Ca ++ activities followed the sequence Rb ≥ Mg > K > Na > Li for both kaolinite and Wyoming bentonite. The activities of CaCl 2 and Ca ++ in bentonite‐kaolinite mixtures differed from predicted activity values based on pure clay systems.