Journal of thermal analysis

, Volume 32, Issue 3, pp 927–937 | Cite as

Thermal analysis of some cyano compounds

  • D. De Marco
  • A. Marchese
  • P. Migliardo
  • A. Bellomo
Article
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Abstract

The thermal behaviour of the cyano compounds NaCN, K4Fe(CN)6 · 3H2O, K3Fe(CN)6, K3Co(CN)6 and K2Hg(CN)4 has been investigated by using conventional thermal analysis techniques and infrared spectroscopy. The results indicate the absence of “decomplexing” reactions for all the complexes, and “internal” redox reactions for the compounds K3Fe(CN)6, K3Co(CN)6 and K2Hg(CN)4. In all the investigated cases, the formation of cyanate and carbonate is demonstrated.

Keywords

Polymer Spectroscopy Physical Chemistry 3H2O Inorganic Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Zusammenfassung

Das thermische Verhalten der Cyanoverbindungen NaCN, K4Fe(CN)6 · 3H2O, K3Fe(CN)6, K3Co(CN)6 und K2Hg(CN)4 wurde mittels konventioneller thermischer Analysentechniken und Infrarotspektroskopie untersucht. Die Ergebnisse deuten darauf hin, daß bei allen Komplexen keine „Dekomplexierungs“-Reaktionen verlaufen und bei den Verbindungen K3Fe(CN)6, K3Co(CN)6 und K2Hg(CN)4 „interne“ Redoxreaktionen vor sich gehen. In allen untersuchten Fällen werden Cyanat und Carbonat gebildet.

Резюме

Используя обыченые т ермоаналитические методы и ИК спектроск опию, было изучено термическое поведение цианосоед инений NaCN, K4Fe(CN)6 · 3H2O, K3Fe(CN)6, K3Co(CN)6 и K2Hg(CN)4. Полученные рез ультаты служат доказательством отс утствия для всех комплексов реакций « декомплексирования » и отсутствие «внутрен них» окислительново сстановительных окислительновосста новительных реакций для соединен ий K3Fe(CN)6, K3Co(CN)6 и K2Hg(CN)4. Разложение всех исследованных с оединений протекает с образованием цианат а и карбоната.

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References

  1. 1.
    W. P. Griffith, Quart. Rew., 16 (1962) 188.Google Scholar
  2. 2.
    W. P. Griffith, Coord. Chem. Rew., 17 (1975) 177.Google Scholar
  3. 3.
    P. Rigo and A. Turco, Coord. Chem. Rew., 13 (1974) 133.Google Scholar
  4. 4.
    A. Bellomo, D. De Marco and A. Casale, Atti Soc. Pel. Sci. Fis. Mat. Nat., LII (1972) 328.Google Scholar
  5. 5.
    A. Bellomo, D. De Marco and A. Casale, Ann. Chim., 63 (1973) 447.Google Scholar
  6. 6.
    D. De Robertis, A. Bellomo and D. De Marco, Talanta, 26 (1979) 157.Google Scholar
  7. 7.
    D. F. Shriver, S. A. Shriver and S. E. Anderson, Inorg. Chem., 4 (1965) 725.Google Scholar
  8. 8.
    D. B. Brown and D. F. Shriver, Inorg. Chem., 8 (1969) 37.Google Scholar
  9. 9.
    G. B. Seifer and Z. A. Makarova, Dokl. Akad. Nauk. SSR., 169 (1968) 358.Google Scholar
  10. 10.
    G. B. Seifer, Russ. J. of Inorg. Chem., 5 (1) (1960) 33.Google Scholar
  11. 11.
    G. B. Seifer, Russ. J. of Inorg. Chem., 7 (6) (1962) 640.Google Scholar
  12. 12.
    G. B. Seifer, Russ. J. of Inorg. Chem., 7 (3) (1962) 246.Google Scholar
  13. 13.
    G. B. Seifer, Russ. J. of Inorg. Chem., 7 (10) (1962) 1187.Google Scholar
  14. 14.
    G. B. Seifer, Russ. J. of Inorg. Chem., 8 (5) (1963) 607.Google Scholar
  15. 15.
    G. B. Seifer, Russ. J. of Inorg. Chem., 8 (6) (1963) 702.Google Scholar
  16. 16.
    C. Duval, Inorganic Thermogravimetric Analysis, Elsevier Publ. Comp. N.Y., 1953.Google Scholar
  17. 17.
    P. K. Gallagher and F. Schrey, Thermal Anal., 2 (1969) 929.Google Scholar
  18. 18.
    P. K. Gallagher and B. Prescott, Inorg. Chem., 9 (1970) 2510.Google Scholar
  19. 19.
    P. K. Gallagher and J. P. Luongo, Thermochim. Acta, 12 (1975) 159.Google Scholar
  20. 20.
    P. K. Gallagher, Mat. Res. Bull., 3 (1968) 225.Google Scholar
  21. 21.
    A. S. Brar, H. S. Sandhu and S. S. Sandhu, J. Thermal Anal., 26 (1983) 7.Google Scholar
  22. 22.
    F. P. Treadwell, Chimica Analitica, Ed. Vallardi, Milano, 1960.Google Scholar
  23. 23.
    K. Nakamoto, Infrared and Raman spectra of Inorganic and Coordination Compounds, J. Wiley and Sons, N.Y., 1978.Google Scholar
  24. 24.
    J. Fujita, K. Nakamoto and M. Kobayashi, J. Am. Chem. Soc., 20 (1956) 3963.Google Scholar
  25. 25.
    C. N. R. Rao, Chemical Application of Infrared Spectroscopy. Academic Press, N.Y., 1963.Google Scholar
  26. 26.
    D. M. Adams, Metal-Ligand and Related Vibrations, Edward Arnold Ltd., London, 1967.Google Scholar
  27. 27.
    P. Pascal, Nouveau Traité de Chimie Minérale, Masson et Cie Editeur, Paris, 1966.Google Scholar
  28. 28.
    F. A. Miller and C. H. Wilkins, Anal. Chem., 24 (8) (1952) 1253.Google Scholar
  29. 29.
    R. A. Nyquist and R. O. Kagel, Infrared Spectra of Inorganic Compounds, Academic Press, N.Y., 1971.Google Scholar
  30. 30.
    R. C. Mackenzie, Differential Thermal Analysis, Academic Press, N.Y., 1972.Google Scholar
  31. 31.
    D. A. Dows, A. Haim and W. K. Wilmarth, J. Inorg. Nucl. Chem., 21 (1961) 33.Google Scholar
  32. 32.
    L. H. Jones, Inorg. Chem., 2 (1963) 777.Google Scholar

Copyright information

© Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest 1987

Authors and Affiliations

  • D. De Marco
    • 1
  • A. Marchese
    • 1
  • P. Migliardo
    • 1
  • A. Bellomo
    • 1
  1. 1.Institute of Analytical ChemistryUniversity of MessinaMessinaItaly

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