Journal of Thermal Analysis and Calorimetry

, Volume 65, Issue 1, pp 121–130 | Cite as

Dehydration Kinetics of Lithium Sulfate Monohydrate Single Crystals

  • A. N. Modestov
  • P. V. Poplaukhin
  • N. Z. Lyakhov


Some peculiar properties of lithium sulfate monohydrate dehydration kinetics are investigated. Experiments were carried out under both isothermal and non-isothermal conditions on the bulk single crystals (∼1 cm). Under both heating modes some new data were obtained. Uncommon high dehydration process rate under isothermal conditions and linear dependence of this rate under non-isothermal ones were discovered. Experiments over the water saturated porous ceramics drying and over the water vapors transmitting through the layer of preliminary dehydrated lithium sulfate were carried out. It is attempted to explain observed phenomena considering heat- and mass-transfer conditions.

activation energy lithium sulfate monohydrate non-isothermal kinetics single crystals thick product layers 


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  1. 1.
    Yu. A, Gaponov, N. Z. Lyakhov, B. P. Tolochko and M. A. Sheromov, Nucl. Instr. Meth., A282 (1989) 698.Google Scholar
  2. 2.
    N. Z. Lyakhov, Reactivity of solids: past, present and future. A 'Chemistry for the 21st Century' monograph, Blackwell Science 1999, p. 121.Google Scholar
  3. 3.
    V. G. Vasiliev and Z. V. Ershova, Zhurnal Fiz. Chimii (in Russian), 46 (1972) 2098.Google Scholar
  4. 4.
    H. Tanaka and H. Fujimaru, J. Thermal Anal., 24 (1982) 207.Google Scholar
  5. 5.
    H. Tanaka and K. Nabuyoshi, J. Thermal Anal., 36 (1990) 2601.Google Scholar
  6. 6.
    N. Koga and H. Tanaka, J. Phys. Chem., 93 (1989) 7793.Google Scholar
  7. 7.
    N. Koga and H. Tanaka, Thermochim. Acta, 185 (1991) 135.Google Scholar
  8. 8.
    N. A. Kirdyashkina and V. B. Okhotnikov, React. Kinet. Catal. Lett., 36 (1988) 417.Google Scholar
  9. 9.
    V. B. Okhotnikov, B. I. Yakobson and N. Z. Lyakhov, React. Kinetic. Catal. Lett., 23 (1983) 125.Google Scholar
  10. 10.
    J. A. Cooper and W. E. Garner, Proc. R. Soc., A174 (1940) 487.Google Scholar
  11. 11.
    R. O. Bach, W. W. Baardman and M. W. Forsyth, Chimia, 18 (1964) 110.Google Scholar
  12. 12.
    I. V. Koptyug, V. B. Fenelonov, L. Y. Khitrina, R. Z. Sagdeev and V. N. Parmon, J. Phys. Chem., 102 (1998) 3090.Google Scholar
  13. 13.
    Yu. A. Kovalenko, N. Z. Lyakhov and N. A. Simakova, Neorganicheskie materially (in Russian), 31 (1995) 519.Google Scholar
  14. 14.
    A. K. Galwey, J. Thermal Anal., 38 (1992) 99.Google Scholar
  15. 15.
    A. V. Lyikov, Teplomassobmen (handbook, in Russian), Energiya, Moscow 1978.Google Scholar
  16. 16.
    M. M. Tokarev, S. G. Kozlova, S. P. Gabuda and Yu. I. Aristov, Zhurnal strukturnoy himii (in Russian), 39 (1998) 261.Google Scholar

Copyright information

© Kluwer Academic Publishers 2001

Authors and Affiliations

  • A. N. Modestov
    • 1
  • P. V. Poplaukhin
    • 1
  • N. Z. Lyakhov
    • 1
  1. 1.Institute of Solid State Chemistry and MechanochemistryNovosibirskRussia

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