Physics
Scientific paper
Oct 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982gecoa..46.1969f&link_type=abstract
Geochimica et Cosmochimica Acta, vol. 46, Issue 10, pp.1969-1973
Physics
38
Scientific paper
The solubility of quartz in water from 25° to 900°C at specific volume of the solvent ranging from about 1 to 10 and from 300° to 600°C at specific volume of the solvent ranging from about 10 to 100 is given by an empirically derived equation of the form: log M = A + B ( log V ) + C ( log V ) 2 where m is the molal silica concentration, V is the specific volume of pure water, and A = -4.66206 + 0.0034063 T + 2179.7 T -1 - 1.1292 × 10 6 T -2 + 1.3543 × 10 8 T -3 B = -0.0014180 T -- 806.97 T -1 C = 3.9465 × 10 -4 T T is temperature in kelvins. The experimental data used in formulating the empirical relation ranged in pressure from 1 bar at 25°C to about 10,000 bars at 900°C, and the lowest pressure in the low-density steam region was about 30 bars. According to the above equation, the average difference in molality between 518 measured and calculated solubilities is -0.016 m with a standard deviation of 0.089.
Fournier Robert O.
Potter Robert W. II
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