Bulletin of the Chemical Society of Japan · 1977 · 14 citations · 3 references
Natural SciencesChemical EngineeringChemistryAnalytical ChemistryElectrochemistryOrganic ChemistryAcid-base ChemistryElectrolyte SolutionsSolvent ExtractionAcid ExtractionExtraction EquilibriaExtraction KineticsExtraction Of Organic CompoundsExtraction SolventsSolvent Extraction ChemistryThermodynamics Of Extraction
Abstract The solvent extraction of hydrohalogenic acids and thiocyanic acid (HX) in 1 mol dm−3 electrolyte solutions with trioctylphosphine oxide (E) has been studied at 25 °C. The extraction constant, Kex1=[HXE]org[H+]−1[X−]−1][E]org−1, for thiocyanic acid was found to be 102.5, while Kex2=[HXE2]org[H+]−1[X−]−1[E]org−2 for hydrobromic and hydroiodic acids were found to be 100.34 and 101.78 respectively.
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