Abstract
The complexes of uranyl ion with diisopropylaminoethanethiol hydrochloride have been investigated by potentiometric and conductometric titration techniques in aqueous 0.1 M KNO3. It was observed that below pH 4.5, two complexes 1∶1 and 1∶2 are formed with considerable overlapping and the latter complex is more stable. Their log Kstab values have been computed by alternative methods and are found to be 8.33 and 7.42 at 30°C and 8.40 and 7.72 at 40°C. The values of ΔG, ΔH and ΔS for complexation at 40°C are −23.25 kcal/mole, 16.46 kcal/mole and 128.0 cal/degree/mole respectively.
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Literatur
R. S. Saxena undK. C. Gupta, Electrochim. Acta.13, 1749 (1968).
R. S. Saxena undU. S. Chaturvedi, Electrochim. Acta.16, 1107 (1971).
R. S. Saxena undU. S. Chaturvedi, J. Electroanal. Chem.36, 515 (1971).
R. S. Saxena, K. C. Gupta undM. L. Mittal, Austral. J. Chem.21, 641 (1968).
R. S. Saxena, K. C. Gupta undM. L. Mittal, Canad. J. Chem.46, 311 (1968).
M. Calvin undN. C. Melchior, J. Amer. Chem. Soc.70, 3270 (1948).
J. Bjerrum, Metal Ammine Formation in Aqueous Solution. Haase and Son Copenhagen (1941).
R. S. Saxena undU. S. Chaturvedi, Electrochim Acta18, 327 (1973).
K. H. Schrøder, Acta Chem. Scand.20, 1401 (1966).
H. Irving undH. S. Rossotti, J. Chem. Soc.1953, 3397.
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Saxena, R.S., Chaturvedi, U.S. Elektrometrische Untersuchungen an Uranylkomplexen mit Diisopropylaminoäthanthiolhydrochlorid. Monatshefte für Chemie 104, 1208–1213 (1973). https://doi.org/10.1007/BF00910034
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DOI: https://doi.org/10.1007/BF00910034