Premium
Displacing Exchangeable Potassium in Cation Exchange Determinations
Author(s) -
Yaalon D. H.,
Koyumdjisky Hanna
Publication year - 1968
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1002/ijch.196800030
Subject(s) - chemistry , ion exchange , potassium , adsorption , cation exchange capacity , soil water , inorganic chemistry , clay minerals , ion , mineralogy , organic chemistry , soil science , environmental science
The amounts of exchangeable K displaced by NH 4 , Na, and Li using methods adopted in cation exchange determinations were compared. Besides differences due to the effect of the geometric factor of the replacing ion, related to its size and hydration characteristics, the behaviour of clays of two groups of soils was consistently and significantly different. A critical assessment of the data suggests that there is a considerable diversity in the distribution and bonding energy of the K adsorption sites on the various clays.