Robert W. Potter II
Robert O. Fournier
1982
<p><span>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 </span><i>m</i><span> = </span><i>A</i><span> + </span><i>B</i><span>(log </span><i>V</i><span>) + </span><i>C</i><span>(log </span><i>V</i><span>)</span><sup>2</sup><span> where </span><i>m</i><span> is the molal silica concentration, </span><i>V</i><span> is the specific volume of pure water, and </span><i>A</i><span> = −4.66206 + 0.0034063</span><i>T</i><span> + 2179.7</span><i>T</i><sup>−1</sup><span> − 1.1292 × 10</span><sup>6</sup><i>T</i><sup>−2</sup><span> + 1.3543 × 10</span><sup>8</sup><i>T</i><sup>−3</sup><i>B</i><span> = −0.0014180</span><i>T</i><span>— 806.97</span><i>T</i><sup>−1</sup><i>C</i><span> = 3.9465 × 10</span><sup>−4</sup><i>T T</i><span> 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.</span></p>
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10.1016/0016-7037(82)90135-1
en
Elsevier
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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