Search Results

You are looking at 1 - 6 of 6 items for :

  • Author or Editor: A. Chmarzyński x
  • Chemistry and Chemical Engineering x
  • Refine by Access: All Content x
Clear All Modify Search

The concentration dependences of the differential enthalpies of solution were measured along several crystallization paths in the above-mentioned system, and the enthalpies of crystallization of mixed crystals occurring as a stable solid phase in the system were calculated on this basis. The obtained results confirmed the existence of a region of breaking continuity in the equilibrium solid phases.

Restricted access

Abstract  

The direct measurements of differential enthalpies of solution Δsol H 2, of LiCl·H2O, NaCl, KCl, MgCl2·6H2O, CaCl2·6H2O and BaCl2·2H2O, as the function of molality,m, in the region of concentrated solutions were performed. On this basis the enthalpies of crystallization, Δcryst H m, were calculated and compared to the appropriate literature data.

Restricted access

Abstract  

The concentration dependencies of the differential enthalpies of solution along several crystallization paths in the above mentioned system were measured. On this basis enthalpies of crystallization of equilibrium solid phases occurring there were calculated.

Restricted access

Abstract  

For the equilibrium solid phases occurring in the systems: KCl−KBr−H2O, K2SO4−(NH4)2SO4−H2O and KNO3−NH4NO3−H2O, the concentration dependencies of differential solution enthalpies, Δsol H 2 for several crystallization paths, were measured. The limiting differential solution enthalpies, Δsol H 2 0 , were determined by extrapolation of the above dependencies to the ionic strength,I m 0 , corresponding to the appropriate binary solutions. For KCl−KBr−H2O system only, the clear dependence between Δsol H 2 0 andI m 0 values was found and discussed.

Restricted access

Abstract  

The concentration dependencies of the differential enthalpies of solution were measured along several crystallization paths in the KCl−KBr−H2O system. On this basis enthalpies of crystallization of mixed crystals occurring as a stable solid phase in the system were calculated.

Restricted access

The enthalpies of crystallization of NaCl, KCl, LiCl·H2O, MgCl2·6H2O, CaCl2·6H2O and BaCl2·2H2O from aqueous solution were determined by means of different calculation methods on the basis of the earlier-measured differential and integral enthalpies of solution of the above salts. The obtained crystallization enthalpies are discussed and compared with the appropriate literature data.

Restricted access