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Hydrogen Consumption and Silica Release During Initial Stages of Phosphate Adsorption on Kaolinite at a Constant pH
Author(s) -
Kafkafi U.
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.196800046
Subject(s) - chemistry , kaolinite , phosphate , adsorption , hydrolysis , inorganic chemistry , potassium , sodium , reaction rate constant , hydrogen , calcium , kinetics , mineralogy , organic chemistry , physics , quantum mechanics
The release of silica from kaolinite is enhanced immediately after application of phosphate. The rate of the silica release was inferred from the rate of hydrogen additions needed to keep the system at a constant pH. Potassium increases silica hydrolysis from kaolinite surfaces in 1N solution more than calcium or sodium.