Download Chemical Modeling of Aqueous Systems II by Daniel C. Melchior, R. L. Bassett PDF

By Daniel C. Melchior, R. L. Bassett

Chemical Modeling in Aqueous structures

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84 6 0. MnS0 0. 66 6 0. 87 6 Na S0 4 0. 07 6 2 S Mn+2 + 3 4 M S0 - 2 4 2 n S 0 4 = Mn(S0 ) 4 2 2 Na+ = Na+ 0. 70 4 0. 10 6 0. 95 6 0. NiS0 4 Pb+2 = Pb+2 0. 2 0. 5 0. 12 0. 88 S0 -2 = S0 -2 0. 040 Fit 0. 26 Fit 0. 20 6 0. 5 4 2 2 2 2 3 2 2 4 3 2 2 4 4 2 4 0. 121 - WATEQ 0. 0299 2 0. 12 6 0. 85 6 0. 0 4 0. 5 4 Mn+ + 3 CI" = MnCI 2 2 WATEQ 4 0. 50 a 0. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1990. 02 6 0. 86 6 0. ch003 / Data derived from gypsum solubility in sodium chloride, sodium sulfate, and calcium chloride solutions were used in addition to calcium sulfate solutions.

165 0. 82 4 4 6 0. 65 6 0. 39 + 2 0. 6264 b 3 2 Cd +2 5 0. a 0. 4 2 C a + 2 SO4- = Ca(S0 ) C(j+2 = cd + 0. 00 2 0. 00 0. 19 6 0. 50 0. 0967 CIO4- 0. 50 0 0. 2883 0. 50 0. 0. 02 6 0. 05 6 0. C0SO4 C0SO4 0. 0024 CsCl 0. 18 6 0. 13 6 0. 29 Cu 2 4 0. 0390 Co(CI0 ) - + 4 CI" = CuCU" 2 2 KCI - 3 +2 2 0. 8 WATEQ WATEQ 2 Cu Cu Fit C o + 2 Co+ + Cs = Cs Cu+2 = c u Cu Cu 2 + CI" = CoCI+ + +2 4 = CIO4- C0+2 = Co 2 WATEQ 0. 5 Fit 0. 2269 0. 00 Fit 0. 00 4 4 0. 00 Fit 0. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1990.

1975, 4, 249-265. H. Am. J. Sci. 1974, 274, 1199-1261. E. Critical Stability Constants, Volume 4, Inorganic Complexes 1976; Plenum Press, New York. ; ACS Symposium Series; American Chemical Society: Washington, DC, 1990. Chapter 3 Ion-Association Models and Mean Activity Coefficients of Various Salts David L. S. Geological Survey, Denver Federal Center, Mail Stop 418, Lakewood, CO 80225 Calculations using the aqueous model from WATEQ and an aqueous model mod­ ified from WATEQ were compared to experimental mean activity coefficients for various salts to determine the range of applicability and the sources of errors in the models.

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