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DISPLACEMENT OF AMMONIUM IONS FOR CATION EXCHANGE CAPACITY MEASUREMENTS
Author(s) -
TUCKER B. M.
Publication year - 1974
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1974.tb01129.x
Subject(s) - chemistry , ammonium , cation exchange capacity , reagent , potassium , inorganic chemistry , ion exchange , ammonium nitrate , potassium nitrate , ion , calcium , adsorption , displacement (psychology) , calcium nitrate , soil water , organic chemistry , geology , psychology , soil science , psychotherapist
Summary The best reagent for displacing adsorbed NH, for the measurement of cation exchange capacity of soils is a mixed ZN nitrate solution of potassium and calcium. The equivalent ratio of K to Ca should be in the range from 1 to 3. This mixture is better than simple solutions of Li, Na, K, Mg, Ca, Sr, and Ba nitrates and mixtures of KNO 3 with any one or two of these other nitrates.