Clays and Clay Minerals

, Volume 45, Issue 3, pp 476–479 | Cite as

Reduction and Reoxidation of Nontronite: The Data Reassessed

  • L. Heller-Kallai

Key Words

Infrared Spectra Ion Exchange Nontronite Redox Reactions 


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  1. Chen SZ, Low PF, Roth CB. 1987. Relation between potassium fixation and the oxidation state of octahedral iron. Soil Sci Soc Am J 41:41–86.Google Scholar
  2. Heller-Kallai L. 1976. Interaction of montmorillonite with alkali halides. In: Bailey SW, editor. Proc Int Clay Conf; 1975; Mexico. Wilmette, IL: Applied Publ. p 361–372.Google Scholar
  3. Heller-Kallai L, Rozenson I. 1981. Nontronite after acid or alkali attack. Chem Geol 32:32–103.CrossRefGoogle Scholar
  4. Heller-Kallai, L, Yariv S, Riemer M. 1973. The formation of hydroxy interlayers in smectites under the influence of organic bases. Clay Miner 10:10–40.CrossRefGoogle Scholar
  5. Khaled EM, Stucki JW. 1991. Effect of iron oxidation state on cation fixation in smectites. Soil Sci Soc Am J 55:55–554.CrossRefGoogle Scholar
  6. Komadel P, Madejova J, Stucki JW. 1995. Reduction and reoxidation of nontronite: Questions of reversibility. Clays Clay Miner 43:43–110.CrossRefGoogle Scholar
  7. Lear PR, Stucki JW. 1985. The role of structural hydrogen in the reduction and reoxidation of iron in nontronite. Clays Clay Miner 33:33–545.CrossRefGoogle Scholar
  8. Lear PR, Stucki JW. 1989. Effects of iron oxidation state on the specific surface area of nontronite. Clays Clay Miner 37:37–552.CrossRefGoogle Scholar
  9. Mehra OP, Jackson ML. 1959. Iron oxide removal from soils and clays by a dithionite-citrate system buffered with sodium bicarbonate. In: Swineford A, Editor. Clays Clay Miner, Proc 7th Natl Conf; 1958; Washington, DC. New York: Pergamon Press p 317–327.Google Scholar
  10. Rozenson I. 1975. Reduction-oxidation reactions in diocta-hedral clays [M.Sc. thesis.]. Jerusalem: Hebrew Univ (in Hebrew).Google Scholar
  11. Rozenson I, Heller-Kallai L. 1976. Reduction and oxidation of Fe3+ in dioctahedral smectite. 1: Reduction with hydrazine and dithionite. Clays Clay Miner 24:24–282.Google Scholar
  12. Russell JD. 1979. Infrared spectroscopic study of the interaction of nontronite and ferruginous montmorillonite with alkali metal hydroxides. Clay Miner 14:14–137.Google Scholar
  13. Russell JD, Goodman BA, Fraser AR. 1979. Infrared and Mössbauer studies of reduced nontronites. Clays Clay Miner 27:27–71.CrossRefGoogle Scholar
  14. Stucki JW. 1988. Structural iron in smectites. In: Stucki JW, Goodman BA, Schwertmann U, editors. Iron in soil minerals. NATO ASI Series. Dordrecht: D. Reidel Publ. p 625–675.CrossRefGoogle Scholar
  15. Stucki JW, Lear PR. 1990. Variable oxidation state of iron in the crystal structure of smectite clay minerals. In: Coyne LM, McKeever SWS, Blake DF, editors. Spectroscopic characterization of minerals and their surfaces. Washington, D.C.: Am Chem Soc., p 330–358.CrossRefGoogle Scholar
  16. Stucki JW, Golden DC, Roth CB. 1984. Effects of reduction and reoxidation of structural iron on the surface charge and dissolution of dioctahedral smectites. Clays Clay Miner 32:32–355.Google Scholar
  17. Stucki JW, Roth PR. 1976. Interpretation of infrared spectra of oxidized and reduced nontronite. Clays Clay Miner 24:24–296.Google Scholar
  18. Stucki JW, Roth PR. 1977. Oxidation-reduction mechanism for structural iron in nontronite. Soil Sci Soc Am J 41:41–814.CrossRefGoogle Scholar
  19. Stucki JW, Tessier D. 1991. Effects of iron oxidation state on the structural order of Na-nontronite. Clays Clay Miner 39:39–143.CrossRefGoogle Scholar
  20. Tee GB, Huang P. 1986. Influence of citric and tannic acid on hydroxy-Al interlayering in montmorillonite. Clays Clay Miner 34:34–44.Google Scholar
  21. Wu J, Low PF, Roth CB. 1989. Effects of octahedral iron reduction and swelling pressure on interlayer distances in Na-nontronite. Clays Clay Miner 37:37–218.Google Scholar

Copyright information

© The Clay Minerals Society 1997

Authors and Affiliations

  • L. Heller-Kallai
    • 1
  1. 1.Institute of Earth SciencesThe Hebrew UniversityJerusalemIsrael

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