Extraction of some mineral acids by tri‐n‐octyl phosphine oxide
- 1 January 1976
- journal article
- research article
- Published by Wiley in Journal of Chemical Technology & Biotechnology
- Vol. 26 (1) , 697-704
- https://doi.org/10.1002/jctb.5020260194
Abstract
The distribution equilibria of hydrochloric, nitric, perchloric, sulphuric and phosphoric acids between aqueous solutions and a solution of tri‐n‐octyl phosphine oxide (TOPO) in organic solvents have been investigated. The organic phases were studied by infrared and nuclear magnetic resonance spectroscopy. As a result, it is found that the extraction of these acids is governed by the formation of HCl·TOPO, HNO3·TOPO and HClO4·TOPO, of H2SO4·2 TOPO and H2SO4·TOPO, and of H3PO4·3 TOPO, H3PO4·2 TOPO and H3PO4·TOPO, respectively.Keywords
This publication has 22 references indexed in Scilit:
- The extraction of zirconium(iv) from hydrochloric acid solutions by tri-n-butyl phosphate and di-(2-ethylhexyl)-phosphoric acidAnalytica Chimica Acta, 1970
- The extraction of thorium (IV) from hydrochloric acid solutions by tri-n-octyl phosphine oxideJournal of Inorganic and Nuclear Chemistry, 1969
- Forbidden transitions in the infra-red spectra of some tetrahedral anions—I. perchloratesSpectrochimica Acta, 1962
- Solute-solvent interaction in the system hydrochloric acid-water-tri-n-butyl phosphateJournal of Inorganic and Nuclear Chemistry, 1960
- The extraction of mineral acids by tri-n-butyl phosphate (TBP)Journal of Inorganic and Nuclear Chemistry, 1960
- The co-extraction of nitric acid and uranyl nitrate by tributyl phosphateJournal of Inorganic and Nuclear Chemistry, 1959
- The extraction of uranyl nitrate from nitric acid solutions by tributyl phosphateJournal of Inorganic and Nuclear Chemistry, 1958
- Infra‐red analysis of phosphorus compoundsJournal of Chemical Technology & Biotechnology, 1956
- The Vibrational Spectrum of Methyl Nitrate1Journal of the American Chemical Society, 1955
- 820. Infra-red spectrum of crystalline potassium perchlorate. Reassignment of the lower fundamental frequencies of the perchlorate ionJournal of the Chemical Society, 1952