Open AccessCation-Exchange Properties of Aluminium(III) Phosphate
Author(s) -
S. Mustafa,
A. Naeem,
N. Rehana,
H. Y. Samad
Publication year - 1996
Publication title -
adsorption science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.682
H-Index - 36
eISSN - 2048-4038
pISSN - 0263-6174
DOI - 10.1177/026361749601300404
Subject(s) - chemistry , potentiometric titration , sorption , inorganic chemistry , ion exchange , aluminium , titration , phosphate , aqueous solution , electrolyte , adsorption , metal ions in aqueous solution , metal , ion , organic chemistry , electrode
Potentiometric titrations of aluminium(III) phosphate have been performed in the presence of aqueous electrolyte solutions containing Cu 2+ , Zn 2+ , Ni 2+ and K + ions as a function of the concentration of the latter, the pH and the temperature. The sorption of Zn 2+ ions has also been studied and the data for metal ion sorption shown to correlate with the Potentiometric titration data, indicating that the process responsible for metal ion uptake is ion exchange. The pK a value of the exchanger and its thermodynamic parameters have been evaluated.