THE FLUORIDE COMPLEXES OF SILVER AND STANNOUS IONS IN AQUEOUS SOLUTION
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)
- Research Organization:
- Univ. of California, Berkeley
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-026048
- OSTI ID:
- 4008110
- Journal Information:
- Journal of Physical Chemistry (U.S.), Vol. Vol: 65; Other Information: Orig. Receipt Date: 31-DEC-61
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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