Abstract
The equilibria among the species Fe 3+ , FeCl 2+ , FeCl 2 + , FeOH 2+ and Fe(OH) 2 + have been examined by ultraviolet absorption spectroscopy. Our results indicate that previous workers have generally overestimated the stability constant of FeCl 2+ and that the association of Fe 3+ and Cl − is predominantly inner sphere. The formation constant of FeOH 2+ obtained in 0.68 m NaCl is in good agreement with our earlier results obtained in 0.68 m NaClO 4 . Our results indicate that formation of FeOHCl + is much less significant than has been previously reported. Molar absorptivities for the species Fe 3+ , FeCl 2+ , FeCl 2 + and FeOH 2+ are reported for wavelengths between 220 and 400 nanometers.
Original language | American English |
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Journal | Journal of Solution Chemistry |
Volume | 10 |
DOIs | |
State | Published - Jan 1 1981 |
Keywords
- Hydrolysis
- ferric chloride
- ferric hydroxide
- UV spectroscopy
- complexes
- ion pairs
Disciplines
- Life Sciences