Segregation in alkali halide crystallization from aqueous solutions
Por:
Rosenberger F., Riveros H.G.
Publicada:
1 ene 1974
Resumen:
Segregation from solutions and melts is compared theoretically. It is shown from thermodynamic arguments that equilibrium solution segregation is more effective. Segregation coefficients k0 are calculated for aqueous alkali halide systems, based upon theoretical heat of dissolution values (solid solution) and solubility data (liquid solution). Good agreement with experimental values is obtained over a range of 1 > k0 > 10-4. A critical discussion of the available experimental data and limitation of the thermodynamic theory in terms of off-equilibrium nhenomena is given.
Filiaciones:
Rosenberger F.:
Department of Physics, University of Utah, Salt Lake City, UT 84112, United States
Riveros H.G.:
Instituto de Fisica, Universidad National Autonoma de Mexico, Mexico 20, DF, Mexico
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