Abstract
ABSTRACTThe extraction of cobalt(II) from sulfate medium of ionic strength 0.33 mol dm−3 by capric acid dissolved in chloroform has been carried out at 25°C. By using the slope analysis method, the stoichiometry of the organometallic complex extracted was determined. Cobalt(II) complex exists as a mononuclear species CoL2.2HL in the lower concentration region of capric acid and a binuclear ones (CoL2.2HL)2 in the higher concentration region. Extraction constants for each species were given. UV–visible and FTIR spectroscopy have also been used for the investigation of the extractant and their complexes. Electronic spectrum of cobalt(II) caprate species indicates the octahedral structure.
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