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- W51579567 abstract "The mechanism of reduction for chromium(III) ion to chromium(II) at the mercury cathode was studied in 0.1M KNO/sub 3/. Data obtained at varying temperature and solution composition from polarograms gave values for DELTA H*, DELTA S*, and DELTA F* which indicated that two mechanisms were involved. At potentials more positive than the polarographic half-wave potential, the mechanism appeared to be simple electron transfer from the electrode to the chromium(III) ion in solution. When the potential was more negative than the half-wave, potential electron exchange between the reduced chromium ion near the electrode surface and a chromium(III) ion in solution became appreciable. Values for the heat of activation for the reduction of chromium(III) to chromium(II) in 0.1M KNO/sub 3/ for the electron transfer and exchange reaction mechanisms were determined to be 34.7 and 27.0 kcal mole/sup -1/, respectively. (auth)" @default.
- W51579567 created "2016-06-24" @default.
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- W51579567 date "1960-05-20" @default.
- W51579567 modified "2023-09-23" @default.
- W51579567 title "MECHANISM OF ELECTROREDUCTION OF CHROMIC ION AT THE MERCURY CATHODE" @default.
- W51579567 doi "https://doi.org/10.2172/4161044" @default.
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