Abstract
The equilibria among the species Fe3+, FeCl2+, FeCl2 +, FeOH2+ and Fe(OH)2 + have been examined by ultraviolet absorption spectroscopy. Our results indicate that previous workers have generally overestimated the stability constant of FeCl2+ and that the association of Fe3+ and Cl− is predominantly inner sphere. The formation constant of FeOH2+ obtained in 0.68 m NaCl is in good agreement with our earlier results obtained in 0.68 m NaClO4. Our results indicate that formation of FeOHCl+ is much less significant than has been previously reported. Molar absorptivities for the species Fe3+, FeCl2+, FeCl2 + and FeOH2+ are reported for wavelengths between 220 and 400 nanometers.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
E. Rabinowich and W. A. Stockmayer,J. Am. Chem. Soc. 64, 335 (1942).
H. Coll, R. V. Nauman, and P. W. West,ibid.81, 1284 (1959).
M. J. M. Woods, P. K. Gallagher, and E. L. King,Inorg. Chem. 1, 55 (1962).
R. N. Heistand and A. Clearfield,J. Am. Chem. Soc. 85, 2566 (1963).
J. K. Rowley and N. Sutin,J. Phys. Chem. 74, 2043 (1970).
H. A. Schwarz and R. W. Dodson,ibid.80, 2801 (1976)
R. H. Byrne and D. R. Kester,Mar. Chem. 4, 275 (1976).
R. Kruh,J. Am. Chem. Soc. 76, 4865 (1954).
D. W. Marquardt,J. Soc. Ind. Appl. Math. 11, 431 (1963).
A. Barr, J. Goodnight, J. Sall, and J. Helwig,A User's Guide to SAS 76, (Sparks Press, 1976), p. 193.
R. H. Byrne and D. R. Kester,J. Solution Chem. 7, 373 (1978).
M. J. M. Woods,Studies of Complex Ion Equilibria I. Iron (III) Chloride System II. Thallium(III) Chloride System. (University Microfilms, Inc., Ann Arbor, Michigan, 1961), pp. 208.
D. Dyrssen, D. Jagner, and F. Wengelin,Computer Calculation of Ionic Equilibria and Titration Procedures (Almquest and Wiksell, Stockholm, Sweden, 1969), pp. 250.
R. Koren and B. Perlmutter-Hayman,Inorg. Chem. 11, 3055 (1972).
W. A. E. McBryde,Analyst 94, 337 (1969).
W. A. E. McBryde,ibid.96, 739 (1971).
M. F. Brown and D. R. Kester,Appl. Spectroscopy 34, 377 (1980).
O. B. Khachaturyan and A. A. Belyakova,Russ. J. of Phys. Chem. 50, 1424 (1976).
M. Ishibashi, T. Shigematsu, Y. Yamamoto, M. Tabushi, and T. Kitagawa,Bull. Chem. Soc. Japan 30, 433 (1957).
G. A. Gamlen and D. O. Jordan,J. Chem. Soc., 1435 (1953).
U. Strahm, R. C. Patel, and E. Matijevic,J. Phys. Chem. 83, 1689 (1979).
R. M. Milburn and W. C. Vosburgh,J. Am. Chem. Soc. 77, 1352 (1955).
H. A. Schwarz and R. W. Dodson,J. Phys. Chem. 80, 2543 (1976).
B. Perlmutter-Hayman and E. Tapuhi,J. Coord. Chem. 8, 75 (1978).
A. W. Fordham,Aust. J. Chem. 22, 1111 (1969).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Byrne, R.H., Kester, D.R. Ultraviolet spectroscopic study of ferric equilibria at high chloride concentrations. J Solution Chem 10, 51–67 (1981). https://doi.org/10.1007/BF00652780
Received:
Revised:
Issue Date:
DOI: https://doi.org/10.1007/BF00652780