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COPPER ADSORPTION BY ALKALINE SOILS
Author(s) -
DHILLON S. K.,
SIDHU P. S.,
SINHA M. K.
Publication year - 1981
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.1365-2389.1981.tb01730.x
Subject(s) - adsorption , copper , soil water , langmuir equation , alkali soil , chemistry , precipitation , carbonate , hydroxide , electrolyte , langmuir , inorganic chemistry , environmental chemistry , soil science , geology , electrode , organic chemistry , geography , meteorology
Summary The adsorption of copper by four alkaline soils of northwest India was investigated using 0.05 m CaCI 2 as supporting electrolyte. The adsorption data conformed to the competitive Langmuir adsorption equation although there was possibliity of copper hydroxide or carbonate precipitation at higher concentrations of added copper. The adsorption capacities of soils were related to CEC, clay content and CaCO 3 equivalent of soil. The free energy changes for adsorption and for interaction were negative and positive respectively.