Solubility, solvent selection, and thermodynamic properties of some growth solutions of fluorene

Irena Kotula; Bernard Marciniak

doi:10.1117/12.342967

24 March 1999 Solubility, solvent selection, and thermodynamic properties of some growth solutions of fluorene

Irena Kotula, Bernard Marciniak

Proceedings Volume 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications; (1999) https://doi.org/10.1117/12.342967
Event: International Conference on Solid State Crystals '98, 1998, Zakopane, Poland

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) _s^WP) obtained have been compared to the values predicted by Scatchard-Hildebrand regular solution theory. When the binary parameter, I_s,solv, determined from the lowest solubility datum point temperature is used in the Scatchard- Hildebrand equation, the activity coefficients ((gamma) _s^SHE) 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) S^E approximately equals 0) and the enthalpy of mixing ((Delta) H^M_SHE > 0). Based on the solubility ratios calculated from the solubility data, the ranges of temperature for good growth of fluorene crystals have been estimated.

Citation Download Citation

Irena Kotula and Bernard Marciniak "Solubility, solvent selection, and thermodynamic properties of some growth solutions of fluorene", Proc. SPIE 3724, International Conference on Solid State Crystals '98: Single Crystal Growth, Characterization, and Applications, (24 March 1999); https://doi.org/10.1117/12.342967

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