|Author||Connick, R. E. ♦ Paul, A. D.|
|Source||United States Department of Energy Office of Scientific and Technical Information|
|Subject Keyword||CHEMISTRY ♦ COMPLEXES ♦ FLUORIDES ♦ HYDROGEN ♦ IONS ♦ MERCURY ALLOYS ♦ PHOTOMETRY ♦ SILVER ♦ SOLUTIONS ♦ SPECTRA ♦ THERMODYNAMICS ♦ TIN ♦ URANYL COMPOUNDS ♦ WATER|
|Abstract||Previous work on the fluoride complexing of argentous ion was repeated at an ionic strength of 0.5 M and as a function of temperature to yield values for the equilibrium constant, heat, and entropy of formation of the first fluoride complex. A value for the first fluoride complex of stanous ion was measured at 25' using both an emf method and a spectrophotometric method. The former made use of the tin amalgam- stannous ion couple while the latter depended on uranyl ion as a spectrophotometric indicator for fluoride ion. Although the results of the two methods are in substantial agreement with each other, the values of the equilibrium quotient as a function of stannous ion and hydrogen ion concentrations are not constant. No explanation was found for the discrepancy. (auth)|
|Learning Resource Type||Article|
|Publisher Department||Univ. of California, Berkeley|
|Journal||Journal of Physical Chemistry|
|Organization||Univ. of California, Berkeley|
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