ISSN:
1572-8927
Keywords:
Thermodynamics
;
Pitzer model
;
phase equilibrium
;
sodium phosphate
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract A computational model is developed to calculate thermodynamic phase equilibria in alkaline solutions of trisodium phosphate up to 100°C. A variety of data are used, including isopiestic measurements, freezing point data, vapor pressure data at 100°C, heat capacities, heats of dilution, and solubility measurements. Pitzer's ion-interaction treatment is used to model electrolyte solutions and many unknown parameters are determined from existing data through nonlinear least-squares fitting. Phase equilibria are determined by minimization of total Gibbs energy using a modification of the code SOLGASMIX. Results calculated using the model accurately predict experimental data.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1021784515522
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