Bulletin of the Chemical Society of Japan
Online ISSN : 1348-0634
Print ISSN : 0009-2673
ISSN-L : 0009-2673
Studies of the Alkaline Earth Complexes in Various Solutions. I. Barium(II) Complexes with Sulfate and Oxalate Ions in 1M Sodium Perchlorate Media
Tatsuya SekineMitsuo SakairiYuko Hasegawa
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1966 Volume 39 Issue 10 Pages 2141-2144


The distribution of barium(II) at a very low concentration was determined between a carbon tetrachloride solution of 0.1 M thenoyltrifluoroacetone and 0.2 M tributylphosphate and aqueous solutions of 1 M Na(ClO4) at 25°C. The net distribution ratio is decreased when a part of the perchlorate ions are replaced by sulfate or oxalate ions. This decrease was explained in terms of the complex formation of Ba2+ with these ligands. The stability constants were determined graphically from the experimental data as follows:
(Remark: Graphics omitted.)

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