Abstract
A previously published equation of state is examined with respect to validity of predicted fugacity values for comparison with mineral reaction equilibria. It is found that values of f H2O should be valid for the range from 0.0 to 0.3 and probably to 0.4 in mole fraction NaCl for temperatures from 300° to 600° C and less accurately to 900° C. Comparison is made with existing experimental results near 630° C for the dehydration of brucite; the agreement is excellent. Comparison with recent results at 850° C from a different experiment is also satisfactory. However, fugacity of NaCl is not given on an absolute basis, even in this range below x NaCl=0.4.
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Received: 8 October 1994 / Accepted: 11 May 1995
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Pitzer, K., Jiang, S. Equation of state for NaCl-H2O: comparison with mineral dehydration equilibria. Contrib Mineral Petrol 122, 428–430 (1996). https://doi.org/10.1007/s004100050138
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DOI: https://doi.org/10.1007/s004100050138