Studies on phosphorus oxychloride and aluminium chloride complex

  • K. N. Venkataraman
  • A. R. Vasudeva Murthy


1. Anhydrous aluminium chloride reacts with phosphorus oxychloride to give a complex with a composition AlCl3.2 POCl3 which can be prepared in the form of a free flowing powder.

2. The phosphorus oxychloride-aluminium chloride complex in nitrobenzene dissociates into AlCl3.POCl3 and POCl3 as indicated by the cryoscopic measurements.

3. The solution of the complex in nitrobenzene has a higher specific conductivity than the corresponding electrical conductivities of individual components. Similar higher electrical conductance is observed when the two components are mixed in nitrobenzene in different proportions.

4.When a solution of anhydrous aluminium chloride in nitrobenzene is titrated conductometrically against a solution of phosphorus oxychloride in nitrobenzene, a limiting value in the conductivity is reached at point corresponding to the molecular composition, the components in the ratio of 1:2 AlCl3: POCl3 in solution.

5. The absorption maxima of the complex in nitrobenzene solution differ from the absorption maximum of the individual components.


Nitrobenzene Aluminium Chloride Oxychloride Phosphorus Oxychloride Nitrobenzene Solution 
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.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    Groenveld, W. L...Rec. Trav. Chim., 1956,75, 594.Google Scholar
  2. 2.
    Gutman, V... Ibid., 1956,75, 603.Google Scholar
  3. 3.
    Payne, D. S... Ibid., 1956,75, 620.Google Scholar
  4. 4.
    Casselmann, W...Ann. Chem., 1852,83, 257; 1856,98, 213.CrossRefGoogle Scholar
  5. 5.
    Gutman, V...Z. anorg. allgem. Chem., 1952,269, 279.CrossRefGoogle Scholar
  6. 6.
    Greenveld, W. L. and Zuur, A. P.Rec. Trav. Chem., 1957,76, 1005.Google Scholar
  7. 7.
    Venkataraman, K. N. and Vasudeva Murthy, A. R.Jour. Sci. and Ind. Res., 1959,18 B, No. 12, 537–539.Google Scholar
  8. 8.
    Larsen, E. M., Howatson, J., Gammill, A. M. and Wittenberg, L.J. Am. Chem. Soc., 1952,74, 3489.CrossRefGoogle Scholar
  9. 9.
    Venkataraman, K. N. and Vasudeva Murthy, A. R.Curr. Sci., 1958,27, 389.Google Scholar
  10. 10.
    Meisen Heimer, J. and Dorner, O...Ann. Chem. Justus Liebys, 1930,482, 130.CrossRefGoogle Scholar
  11. 11.
    Roberts, H. M. and Bury, C. R.J. Chem. Soc., 1923, 2037.Google Scholar
  12. 12.
    Meyer, J...Z. Physick. Chemie., 1910,72, 245.Google Scholar
  13. 13.
    Friedel, C. and Crafts, J. M.Compt. rend., 1880,106, 1764.Google Scholar
  14. 14.
    Werner, A...Z. anorg. Chem., 1897,15, 1.CrossRefGoogle Scholar
  15. 15.
    Beckmann, E...Z. Physick. Chem., 1903,46, 860.Google Scholar
  16. 16.
    Menschutkin, B...J. Rus. Phy. Chem. Soc., 1910,42, 58.Google Scholar
  17. 17.
    Kohler, E. P...Am. Chem. Jour., 1900,24, 385.Google Scholar
  18. 18.
    Dadape, V. V. and Rao, M. R. A.J. Am. Chem. Soc., 1955,77, 6192.CrossRefGoogle Scholar
  19. 19.
    Larsen, E. M. and Wittenberg, L. J... Ibid., 1955,77, 5850.CrossRefGoogle Scholar
  20. 20.
    Payne, D. S. ..J. Chem. Soc., 1953, 1052.Google Scholar
  21. 21.
    Plotinikov, V. A. and Vaisberg, R. G.Mem. Inst. Chem. Ukrain Acad. Sci., 1936,3, 337.Google Scholar
  22. 22.
    Biltz, W. and Voigt, A...Z. anorg. Chem., 1923,126, 39.CrossRefGoogle Scholar
  23. 23.
    Uschakow, M. I... Ibid., 1929,183, 144.Google Scholar
  24. 24.
    Gutman, V...Monatsh, 1952,83, 169.Google Scholar
  25. 25.
    —————..Z. anorg. u. allgem. Chem., 1952,267, 279.CrossRefGoogle Scholar
  26. 26.
    Davis, T. L. and Heggie, R.J. Am. Chem. Soc., 1935,57, 1622.CrossRefGoogle Scholar

Copyright information

© Indian Academy of Sciences 1960

Authors and Affiliations

  • K. N. Venkataraman
    • 1
  • A. R. Vasudeva Murthy
    • 1
  1. 1.Department of Inorganic and Physical ChemistryIndian Institute of ScienceBangalore-12

Personalised recommendations