Isolation and characterization of the tertiary amine Alamine 304 hydrochioride. Its application on the extraction of Co(II), Au(III) and Pt(IV)
Keywords:Solvent extraction, Alamine 304 hydrochloride, Cobalt, Gold, Platinum
Amine Alamine 304 dissolved in xylene reacts with hydrochloric acid to form the amine chloride (R3NH+Cl-) and the amine dichloride (R3NH2Cl2). The former compound was isolated and characterized by chemical analysis, X-ray powder diffraction, infrared spectroscopy and scanning electron microscopy. Lattice parameters of the isolated amine chloride were determined and refined by least-square numerical treatment (monoclinic cell, with a = 29.017(4) Å, b = 14.564(7) Å, c = 5.043(1) Å, b = 95.68(3) ° and V = 2,120 Å3). The amine chloride is a potential anion-exchanger with metals, thus data on the liquid-liquid extraction of Co(II), Au(III) and Pt(IV) are also reported.
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