Journal of Solution Chemistry

, Volume 19, Issue 5, pp 447–455 | Cite as

Investigations of salt — Mixed solvent systems XXXVIII. Crystallization enthalpy of magnesium chloride in mixed solvent systems

  • H. H. Emons
  • H. Jahn
  • G. Wolf


The crystallization enthalpies of MgCl2 in MgCl2−H2O-cosolvent systems at 25°C were determined calorimetrically as a function of the cosolvent content in the mixed solvent. Methanol, acetone, and N,N-dimethylformamide were employed as cosolvents. The results show the individual cosolvents to have very differently influences on the energy state of the salt in the saturated solution. The most pronounced changes are effected by an increase of the DMF content in the mixed solvent. The intensity of Mg2+-DMF interaction at a higher DMF content in the saturated solution considerably exceeds the Li+-DMF interaction in LiCl solutions.

Key words

Acetone enthalpy of crystallization enthalpy of dissolution enthalpy of transition ion-solvent interaction magnesium chloride methanol N,N-dimethylformamide solvation 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. 1.
    H.-H. Emons, H. Jahn, and G. Wolf,J. Solution Chem. 19, 437 (1990).Google Scholar
  2. 2.
    H.-H. Emons, F. Birkeneder, and K. Pollmer,Z. Anorg. Allg. Chem. 534, 175 (1986).Google Scholar
  3. 3.
    H.-H. Emons, F. Birkeneder, K. Pollmer, and G. Kabisch,Z. Anorg. Allg. Chem. 521, 231 (1985).Google Scholar
  4. 4.
    H.-H. Emons, K. Pollmer, and G. Kabisch,Z. Chem. 24, 28 (1984).Google Scholar
  5. 5.
    H.-H. Emons, K. Pollmer, and F. Birkeneder,Z. Chem. 24, 73 (1984).Google Scholar
  6. 6.
    G. Kabisch, J. Bader, H.-H. Emons, and K. Pollmer,J. Mol. Liqu. 26, 139 (1983).Google Scholar
  7. 7.
    G. Kabisch and K. Pollmer,Z. Chem. 22, 70 (1982).Google Scholar
  8. 8.
    G. Wolf, H. Jahn, V. Pekárek, and V. Vacek,J. Solution Chem. 15, 269 (1986).Google Scholar
  9. 9.
    A. König and V. Vacek,Thermochim. Acta 89, 243 (1985).Google Scholar
  10. 10.
    V. Vacek, V. Pekárek, and P. V. Ilić,Thermochim Acta 90, 33 (1985).Google Scholar
  11. 11.
    H.-H. Emons, G. Wolf, and C. Kropp,Thermochim Acta 81, 59 (1984).Google Scholar
  12. 12.
    V. Vacek and A. König,Thermochim Acta 70, 225 (1983).Google Scholar
  13. 13.
    S. Kolarik, V. Pekarek, and V. Vacek,Chem. Prumysl. 32, 516 (1982).Google Scholar
  14. 14.
    R. Rychly and J. Nývlt,Kristall und Technik 9, 799 (1974).Google Scholar
  15. 15.
    G. Wolf,Sci. Instru. 1, 79 (1986).Google Scholar
  16. 16.
    G. Wolf,Proc. 3 rd Polish Conference of Calorimetry PAN, Zakopane (Poland), 47 (1984).Google Scholar
  17. 17.
    H.-H. Emons and E. M. May,Z. Anorg. Allg. Chem. 473, 203 (1981).Google Scholar
  18. 18.
    G. Wolf, S. Kolbe, and H. Jahn, to be published.Google Scholar
  19. 19.
    C. Reichardt,Solvent Effects in Organic Chemistry (Verlag Chemie, Weinheim-New York, 1979).Google Scholar
  20. 20.
    G. Liebmann and H.-H. Emons,Wiss. Z. TH Leuna-Merseburg 17, 553 (1975).Google Scholar
  21. 21.
    M. Broul, J. Nyvlt, and O. Söhnel,Solubility in Inorganic Two-Component Systems (Academica, Prag., 1981).Google Scholar

Copyright information

© Plenum Publishing Corporation 1990

Authors and Affiliations

  • H. H. Emons
    • 1
  • H. Jahn
    • 1
  • G. Wolf
    • 1
  1. 1.Sektion ChemieBergakademie FreibergFreibergGDR

Personalised recommendations