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Proceedings Paper

Solubility, solvent selection, and thermodynamic properties of some growth solutions of fluorene
Author(s): Irena Kotula; Bernard Marciniak
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Paper Abstract

Experimental measurements of the solubility of fluorene in six halogen derivative solvents are reported for the temperature range 288 K - 323 K. The results have been correlated by using the Weimer-Prausnitz equation and the experimental activity coefficients ((gamma) sWP) obtained have been compared to the values predicted by Scatchard-Hildebrand regular solution theory. When the binary parameter, Is,solv, determined from the lowest solubility datum point temperature is used in the Scatchard- Hildebrand equation, the activity coefficients ((gamma) sSHE) are predicted to within an average of 0.64%. The regular behavior of the solutions has been confirmed by the excess entropy of mixing ((Delta) SE approximately equals 0) and the enthalpy of mixing ((Delta) HMSHE > 0). Based on the solubility ratios calculated from the solubility data, the ranges of temperature for good growth of fluorene crystals have been estimated.

Paper Details

Date Published: 24 March 1999
PDF: 5 pages
Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); doi: 10.1117/12.342967
Show Author Affiliations
Irena Kotula, Pedagogical Univ. (Poland)
Bernard Marciniak, Pedagogical Univ. (Poland)


Published in SPIE Proceedings Vol. 3724:
International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications
Andrzej Majchrowski; Jerzy Zielinski, Editor(s)

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