Russian Mineralogical Society
2nd International Conference "Crystallogenesis and Mineralogy"
Thermodynamic modeling of evaporite minerals crystallization with chloride-bromide solid solutions formation

RMS-DPI code:  2007-1-22-0
Scientific session:  Session 1. Fundamental problems of crystallogenesis
Author listing:  Charykova M.V., Charykov N.A.
Principal author:  Charykova Marina Valentinovna
Language:  Russian
Abstract - Summary 
(short description):
The calculation of thermodynamic parameters for the modeling of natural brines contain-ing Br– was carried out. Excess functions were represented by the Pitzer’s model (for the liquid solutions) and the regular solutions model (for the solid solutions). The five-component recipro-cal water-salt system Na+, K+, Mg2+║ Cl–, Br– – H2O at 25oC was considered as the basic one. For this system and for all its subsystems – 5 quaternary systems (Na+, K+║ Cl–, Br– – H2O, Na+, Mg2+║ Cl–, Br– – H2O, K+, Mg2+║ Cl–, Br– – H2O, Na+, K+, Mg2+║ Cl– – H2O, Na+, K+, Mg2+║ Br– – H2O) and 9 ternary systems – equilibrium phase diagrams (isotherms of solubility) were calculated. In some of these diagrams fields or curves of crystallization of different solid solu-tions (formed by individual salts, its hydrates or ternary compounds) exist. The results of phase equilibrium calculation are fairly well consistent with experimental solubility data.
RMS-DPI code:  2007-1-22-0
Proceeedings volume 
in the RMS catalogue:
Crystallogenesis and Mineralogy
Pages:  34-36
File of proceedings 
 449 K
Status:  printed
Recieved:  07/05/2007
Accepted:  23/05/2007
Published on-line:  21/12/2007
Permanent address of publication:
Contact author(s):  Charykova, Marina Valentinovna

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