Stability constants of iron(III)-8-hydroxyquinoline complexes |
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| Authors: | TD Turnquist EB Sandell |
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| Institution: | School of Chemistry, University of Minnesota, Minneapolis, Minn.U.S.A. |
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| Abstract: | Spectrophotometric determination of the formation constants of iron(III)-8-hydroxyquinoline complexes in 0.1 M sodium perchlorate solution at 25° gave the values K1=FeOx2+]/(Fe3+]Ox-])=4.9·1013, K2=FeOx2+]/(FeOx2+]Ox-])=4.2·1012 and K3=FeOx3]/(FeOx2+]Ox-])=3.9·1010. FeOx2OH and FeOx(OH)2 are obtainable as solid phases. FeOx3 (Ksp=3·10-44, intrinsic solubility 1.6·10-7 M) dissolves in basic solutions to form FeOx2(OH)2 -In a solution saturated with FeOx3, (FeOx2(OH)2-]Ox-])/OH-]2=7.7·10-5. |
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| Keywords: | Present address: Department of Chemistry Mount Union College Alliance Ohio |
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