H_King Posted August 28, 2008 Share Posted August 28, 2008 I am using GWB 6.0.3 on Windows XPSP2 Using REACT, I calculate SiO2-aqueous for 1kg water and 100 g quartz from 25 to 150C. pH is set to 7 The values obtained are consistently below those reported by Rimstidt in his 1997 review paper on quartz solubility. Rimstidt(1997) T molal SiO2 H4SiO4(PPM) 25 0.000182 17.47 105 0.001111 106.78 150 0.002277 218.82 200 0.004305 413.77 The ultimate goal is to calculate the solubility at T=250C, pH=10 and NaCl=0.5 molar. However, must first get correct answer for fresh water Quote Link to comment Share on other sites More sharing options...
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