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THERMODYNAMICS OF THE EXCHANGE OF NICOTINE ON ALUMINIUM‐MONTMORILLONITE
Author(s) -
SINGHAL J. P.,
SINGH R. P.,
SINGH C. P.,
GUPTA G. K.
Publication year - 1976
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.1365-2389.1976.tb01973.x
Subject(s) - montmorillonite , enthalpy , thermodynamics , aluminium , entropy (arrow of time) , ion , ion exchange , chemistry , nicotine , materials science , organic chemistry , physics , neuroscience , biology
Summary The ion exchange equilibria involving the interaction of nicotine with Almontmorillonite was studied thermodynamically. The exchange isotherms at 30° and 60°C indicated a preference for Al ions by montmorillonite as compared with nicotinium ions. A separation factor supported the conclusion. The enthalpy gain indicated tighter binding of Al. The entropy gain indicated a diffused and disordered arrangement of nicotinium ions in the Goüy layer with Al forming a more ordered arrangement in the Stern layer.