An equation correlating the solubility of quartz in water from 25° to 900°C at pressures up to 10,000 bars
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Abstract
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 + 0.0034063T + 2179.7T−1 − 1.1292 × 106T−2 + 1.3543 × 108T−3B = −0.0014180T— 806.97T−1C = 3.9465 × 10−4T 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.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | An equation correlating the solubility of quartz in water from 25° to 900°C at pressures up to 10,000 bars |
| Series title | Geochimica et Cosmochimica Acta |
| DOI | 10.1016/0016-7037(82)90135-1 |
| Volume | 46 |
| Issue | 10 |
| Year Published | 1982 |
| Language | English |
| Publisher | Elsevier |
| Description | 5 p. |
| First page | 1969 |
| Last page | 1973 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |