Abstract
Di(2-ethylhexyl)phosphoric acid was used as a reagent for the extraction of o-aminophenol in 2-octanol and kerosene. Equilibrium data for active and inactive diluents were obtained at various di(2-ethylhexyl)phosphoric acid concentrations. Both neutral and positive forms of o-aminophenol could be extracted by di(2-ethylhexyl)phosphoric acid. The maximum distribution coefficient occurred when the initial pH value was between pKa1 and pKa2, the dissociation constants of o-aminophenol. At the same concentration the extractabilitiy of di(2-ethylhexyl)phosphoric acid increased as the polarity of the diluent increased. The difference of the distribution coefficient between polar diluents and nonpolar diluents decreased with an increase in the di(2-ethylhexyl)phosphoric acid concentration. Fourier transform infrared spectroscopic analysis was used to show that the behavior is controlled by ion association and ion exchange reactions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
