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Reciprocal Effects of Magnesium and Potassium as Shown by Their Cationic Activities in Four Clays
Author(s) -
McLean E. O.
Publication year - 1950
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/sssaj1950.036159950014000c0020x
Subject(s) - reciprocal , citation , potassium , soil water , library science , chemistry , magnesium , computer science , soil science , environmental science , philosophy , linguistics , organic chemistry
PREVIOUS work from this laboratory has indicated the feasibility of measuring the cationic activities of a monovalent and a divalent cation in the same system by means of the clay membrane technique, and literature dealing with the mutual effects of exchange cations was briefly summarized (4). The results indicated that interactions of the calcium and potassium cations were striking in montmorillonite clay. Further work on these two cations is being reported by Marshall and Barber (1). The present paper deals with the reciprocal effects of potassium and magnesium in four different clay systems. That magnesium ion activities may be measured in homionic systems by means of clay membranes has been shown by Marshall and Eime (3).