@@ -66,7 +66,7 @@ H+ = H+
6666 -dw 9.31e-9 838 6.96 -2.285 0.206 24.01 0
6767# Dw(25 C) dw_T a a2 visc a3 a_v_dif
6868# Dw(TK) = 9.31e-9 * exp(838 / TK - 838 / 298.15) * viscos_0_25 / viscos_0_tc
69- # a = DH ion size, a2 = exponent, visc = viscosity exponent, a3(H+) = 24.01 = new dw calculation from A.D. 2024, a_v_dif = exponent in (viscos_0_tc / viscos)^a_v_dif for tracer diffusion.
69+ # a = DH ion size (= 3.5 - 25) , a2 = exponent (= 0 2.5) , visc = viscosity exponent (= 0 2.5) , a3 = switch [a3 (H+) = 24.01 = new dw calculation from A.D. 2024] , a_v_dif = exponent in (viscos_0_tc / viscos)^a_v_dif for tracer diffusion.
7070
7171# For SC, Dw(TK) *= (viscos_0_tc / viscos)^visc (visc = 0.206 for H+)
7272# a3 > 5 or a3 = 0 or not defined ? ka = DH_B * a * (1 + (vm - v0))^a2 * mu^0.5, in Onsager-Falkenhagen eqn. (For H+, the reference ion, vm = v0 = 0, a *= (1 + mu)^a2.)
@@ -76,7 +76,7 @@ H+ = H+
7676# If a_v_dif <> 0, Dw(TK) *= (viscos_0_tc / viscos)^a_v_dif in TRANSPORT.
7777e- = e-
7878H2O = H2O
79- -dw 2.299e-9 -249 # Holz et al., Phys. Chem. Chem. Phys., 2000, 2, 4740.
79+ -dw 2.299e-9 -249 # Holz et al., Phys. Chem. Chem. Phys., 2000, 2, 4740.
8080# H2O + 0.01e- = H2O-0.01; -log_k -9 # aids convergence
8181Li+ = Li+
8282 -gamma 6 0 # The apparent volume parameters are defined in ref. 1 & 2
@@ -143,10 +143,10 @@ CO3-2 = CO3-2
143143 -viscosity -0.5 0.6521 5.44e-3 1.06e-3 -2.18e-2 1.208 -2.147
144144 -dw 0.955e-9 -103 2.246 7.13e-2 0.3686
145145SO4-2 = SO4-2
146- -gamma 5 -0.04
147- -Vm -7.77 43.17 176 -51.45 3.794 0 42.99 -541 -0.145 0.45 # with analytical_expressions for log K of NaSO4-, KSO4- & MgSO4, 0 - 200 oC
148- -viscosity -0.3 0.501 2.57e-3 0.195 3.14e -2 2.015 0.605
149- -dw 1.07e-9 -114 17 6.02e-2 4.94e-2
146+ -gamma 5.0 -0.04
147+ -Vm 5.36 10.69 33.566 -15.03 4.2582 25 0.341 153.8 1.089e-2 0.9224 # with Na2SO4 & better calculation of sulfates' solubilities in NaCl
148+ -viscosity -0.5 0.521 4.2e-4 9.78e-3 1.24e -2 2.5 -4.94e-2
149+ -dw 1.07e-9 -77.4 10.14 0.5 0.5549
150150NO3- = NO3-
151151 -gamma 3 0
152152 -Vm 6.32 6.78 0 -3.06 0.346 0 0.93 0 -0.012 1
@@ -206,14 +206,14 @@ H2Sg = H2Sg # H2S
206206 -dw 2.1e-9
207207# aqueous species
208208H2O = OH- + H+
209- -analytic 293.29227 0.1360833 -10576.913 -123.73158 0 -6.996455e-5
210209 -gamma 3.5 0
210+ -analytic 293.29227 0.1360833 -10576.913 -123.73158 0 -6.996455e-5
211211 -Vm -9.66 28.5 80 -22.9 1.89 0 1.09 0 0 1
212212 -viscosity -2.26e-2 0.106 2.184e-2 -3.2e-3 0 0.4082 -1.634 # < 5 M Li,Na,KOH
213213 -dw 5.27e-9 478 0.8695
2142142 H2O = O2 + 4 H+ + 4 e-
215- -log_k -86.08
216- -delta_h 134.79 kcal
215+ -log_k -86.06; -delta_h 138.43 kcal
216+ -analytic -1e3 -0.322 -5897.7 416.82 0 -1.88e-5
217217 -Vm 5.7889 6.3536 3.2528 -3.0417 -0.3943 # supcrt
218218 -dw 2.35e-9
2192192 H+ + 2 e- = H2
@@ -316,11 +316,11 @@ AmmH+ = Amm + H+
316316 -dw 2.28e-9
317317AmmH+ + SO4-2 = AmmHSO4-
318318#NH4+ + SO4-2 = NH4SO4-
319- -gamma 2.10 -0.0419
320- -log_k 1.212; -delta_h 8.61 kJ
321- -Vm -8.78 0 -36.09 0 -8.60 0 87.62 0 -0.3123 0.1172
322- -viscosity 0 0.121 -8e-3 0.177 -8e-3 0.512 0.629
323- -dw 0.9e -9 100 2.1 2 0
319+ -gamma 3.64 -4.75e-2
320+ -log_k 1.276; -delta_h -3.24 kcal
321+ -Vm 6.64 8.5 -5.84 -3.1 2 0 19.24 0 -7.84e-2 0.289
322+ -viscosity 0.267 -0.207 9.75e-2 6.18e-2 1.99e-2 1.166 0.61
323+ -dw 1.56e -9 498 25 0.5 0.684
324324H3BO3 = H2BO3- + H+
325325 -log_k -9.24
326326 -delta_h 3.224 kcal
@@ -375,10 +375,11 @@ Ca+2 + CO3-2 + H+ = CaHCO3+
375375 -Vm 3.19 .01 5.75 -2.78 .308 5.4
376376 -dw 5.06e-10
377377Ca+2 + SO4-2 = CaSO4
378- -log_k 2.25
379- -delta_h 1.325 kcal
380- -dw 4.71e-10
381- -Vm 2.791 -.9666 6.13 -2.739 -.001 # supcrt
378+ -gamma 0 4.45e-2
379+ -log_k 2.14; -delta_h 24.4
380+ -analytical_expression 1.478 8.29e-3 -538.2
381+ -vm 2.7 2 2 -3.7
382+ -dw 4.71e-9
382383Ca+2 + HSO4- = CaHSO4+
383384 -log_k 1.08
384385Ca+2 + PO4-3 = CaPO4-
@@ -415,19 +416,19 @@ Mg+2 + H+ + CO3-2 = MgHCO3+
415416 -Vm 2.7171 -1.1469 6.2008 -2.7316 .5985 4 # supcrt
416417 -dw 4.78e-10
417418Mg+2 + SO4-2 = MgSO4
418- -gamma 0 0.2
419- -log_k 2.42; -delta_h 19 kJ
420- -analytical_expression 0 9.64e-3 -136 # mean salt gamma from Pitzer.dat and epsomite/hexahydrite/kieserite solubilities, 0 - 200 oC
421- -Vm 8.65 -10.21 29.58 -18.6 1.061
422- -viscosity 0.318 -5.4e -4 -3.42e -2 0.708 3.7e -3 0.696
419+ -gamma 0 0.20
420+ -log_k 2.42; -delta_h 19.0
421+ -analytical_expression 0 9.64e-3 -136 # epsomite/hexahydrite/kieserite solubilities, 0 - 200 oC
422+ -Vm 11.92 -27.758 29.752 -10.302 -0.1
423+ -viscosity -0.799 1 2.2e -4 8.53e -2 -4.6e -3 1.35 -0.796
423424 -dw 4.45e-10
424425SO4-2 + MgSO4 = Mg(SO4)2-2
425426 -gamma 7 0.047
426- -log_k 0.52; -delta_h -13.6 kJ
427- -analytical_expression 0 -1.51e-3 0 0 8.604e4 # mean salt gamma from Pitzer.dat and epsomite/hexahydrite/kieserite solubilities, 0 - 200 oC
428- -Vm -8.14 -62.2 -15.96 3.29 -3.01 0 150 0 0.153 3.79e -2
429- -viscosity -0.169 5e-4 -5.69e -2 0.11 2.03e -3 2.027 - 1e-3
430- -dw 0.845e -9 -200 8 0 0.965
427+ -log_k 0.52; -delta_h -13.6
428+ -analytical_expression 0 -1.51e-3 0 0 8.604e4 # epsomite/hexahydrite/kieserite solubilities, 0 - 200 oC
429+ -Vm 4.248 9.83 -7 -2.672 2 3.5 5 100 0.3359 9.518e -2
430+ -viscosity 0.324 6.84e-2 -2.09e -2 0.104 6.19e -3 1.983 1e-3
431+ -dw 1.11e -9 -500 3.5 0.5 0.731
431432Mg+2 + PO4-3 = MgPO4-
432433 -log_k 6.589
433434 -delta_h 3.1 kcal
@@ -453,12 +454,19 @@ Na+ + HCO3- = NaHCO3
453454 -viscosity -4e-2 -2.717 1.67e-5
454455 -dw 6.73e-10
455456Na+ + SO4-2 = NaSO4-
456- -gamma 5.5 0
457- -log_k 0.6; -delta_h -14.4 kJ
458- -analytical_expression 255.903 0.10057 0 -1.11138e2 -8.5983e5 # mirabilite/thenardite solubilities, 0 - 200 oC
459- -Vm 1.99 -10.78 21.88 -12.7 1.601 5 32.38 501 1.565e-2 0.2325
460- -viscosity 0.2 -5.93e-2 -4e-4 8.46e-3 1.78e-3 2.308 -0.208
461- -dw 1.13e-9 -23 8.5 0.392 0.521
457+ -gamma 3.5 0.1072
458+ -log_k 0.94; -delta_h 8.23
459+ -analytical_expression -0.304 4.51e-3 -28.9 # mirabilite/thenardite solubilities, 0 - 200 oC
460+ -Vm 8.523 -4.685 -8.61 0.106 2.7 25 3.634 13.4 3.738e-2 0.5476
461+ -viscosity -1 0.33 0.128 1.143 7.7e-4 1.9e-2 -0.387
462+ -dw 4e-10 -200 3.5 0.5 0.5
463+ 2 Na+ + SO4-2 = Na2SO4
464+ -gamma 0 8.85e-2
465+ -log_k -2.37; -delta_h 82
466+ -analytical_expression 15.432 -5.75e-3 -4796 # sulfates solubilities in NaCl
467+ -Vm 9.405 -15.5 25 8.4 0.25
468+ -viscosity -0.5 0.485 -1e-3 0.147 0 0.947 -0.175
469+ -dw 0.8e-9
462470Na+ + HPO4-2 = NaHPO4-
463471 -log_k 0.29
464472 -gamma 5.4 0
@@ -473,11 +481,11 @@ K+ + HCO3- = KHCO3
473481 -viscosity 0.7 -1.289 9e-2
474482K+ + SO4-2 = KSO4-
475483 -gamma 5.4 0.19
476- -log_k 0.6 ; -delta_h -10.4 kJ
484+ -log_k 1.18 ; -delta_h 3
477485 -analytical_expression -3.0246 9.986e-3 0 0 1.093e5 # arcanite solubility, 0 - 200 oC
478- -Vm 13.48 -18.03 61.74 -19.6 2.046 5.4 -17.32 0 0.1522 1.919
479- -viscosity -1 1.06 1e-4 -0.464 3.78e -2 0.539 -0.69
480- -dw 0.9e -9 63 8.48 0 1.8
486+ -Vm 3.443 5.04 13 -3.324 2.447 0 20 0 7.77e-3 0.3497
487+ -viscosity 0.107 0.19 2.23e-2 -0.148 -4.91e -2 0.537 0.195
488+ -dw 1.22e -9 100 25 0.5 2.5
481489K+ + HPO4-2 = KHPO4-
482490 -log_k 0.29
483491 -gamma 5.4 0
@@ -497,9 +505,8 @@ Fe+2 + CO3-2 = FeCO3
497505Fe+2 + HCO3- = FeHCO3+
498506 -log_k 2
499507Fe+2 + SO4-2 = FeSO4
500- -log_k 2.25
501- -delta_h 3.23 kcal
502- -Vm -13 0 123
508+ -log_k 2.25; -delta_h 3.23 kcal
509+ -Vm 5.8 6.5 3.7 -3 -0.09
503510Fe+2 + HSO4- = FeHSO4+
504511 -log_k 1.08
505512Fe+2 + 2 HS- = Fe(HS)2
@@ -601,9 +608,9 @@ Mn+2 + HCO3- = MnHCO3+
601608 -log_k 1.95
602609 -gamma 5 0
603610Mn+2 + SO4-2 = MnSO4
604- -log_k 2.25
605- -delta_h 3.37 kcal
606- -Vm -1.31 -1.83 62.3 -2.7
611+ -gamma 0 -0.098
612+ -log_k 1.408; -delta_h 21.55
613+ -Vm 1.88 6.5 10 -3 0.1
607614Mn+2 + 2 NO3- = Mn(NO3)2
608615 -log_k 0.6
609616 -delta_h -0.396 kcal
@@ -696,7 +703,8 @@ Ba+2 + HCO3- = BaHCO3+
696703 -delta_h 5.56 kcal
697704 -analytic -3.0938 0.013669
698705Ba+2 + SO4-2 = BaSO4
699- -log_k 2.7
706+ -log_k 3.457; -delta_h 26.15
707+ -vm -6.25 24.66 -4.38 10.97 0.5
700708Sr+2 + H2O = SrOH+ + H+
701709 -log_k -13.29
702710 -gamma 5 0
@@ -815,12 +823,13 @@ Zn+2 + 2 CO3-2 = Zn(CO3)2-2
815823Zn+2 + HCO3- = ZnHCO3+
816824 -log_k 2.1
817825Zn+2 + SO4-2 = ZnSO4
818- -log_k 2.37
819- -delta_h 1.36 kcal
820- -Vm 2.51 0 18.8
826+ -gamma 0 0.1
827+ -log_k 2.26; -delta_h 16.15
828+ -Vm 0.409 6.5 2 -3 0
821829Zn+2 + 2 SO4-2 = Zn(SO4)2-2
822- -log_k 3.28
823- -Vm 10.9 0 -98.7 0 0 0 24 0 -0.236 1
830+ -gamma 0.59 0.1
831+ -log_k 1.15; -delta_h 17.52
832+ -Vm 9.21 10.6 9 -3.2 3.8 25 0 100 -1e-3 0.256
824833Zn+2 + Br- = ZnBr+
825834 -log_k -0.58
826835Zn+2 + 2 Br- = ZnBr2
@@ -866,12 +875,13 @@ Cd+2 + 2 CO3-2 = Cd(CO3)2-2
866875Cd+2 + HCO3- = CdHCO3+
867876 -log_k 1.5
868877Cd+2 + SO4-2 = CdSO4
869- -log_k 2.46
870- -delta_h 1.08 kcal
871- -Vm 10.4 0 57.9
878+ -gamma 0 0.1
879+ -log_k 1.016; -delta_h 6.84
880+ -Vm 2.11 6.5 10 -3 0.1
872881Cd+2 + 2 SO4-2 = Cd(SO4)2-2
873- -log_k 3.5
874- -Vm -6.29 0 -93 0 9.5 7 0 0 0 1
882+ -gamma 5.201 -0.1
883+ -log_k 2.688; -delta_h 0.19
884+ -Vm 9.14 10.6 -3.06 -3.2 3.8 7.44 1.27 0.32 -1e-3 2.5
875885Cd+2 + Br- = CdBr+
876886 -log_k 2.17
877887 -delta_h -0.81 kcal
@@ -991,29 +1001,24 @@ Witherite
9911001 -Vm 46
9921002Gypsum
9931003 CaSO4:2H2O = Ca+2 + SO4-2 + 2 H2O
994- -log_k -4.58
995- -delta_h -0.109 kcal
996- -analytic 68.2401 0 -3221.51 -25.0627
997- -analytical_expression 93.7 5.99E-3 -4e3 -35.019 # better fits the appendix data of Appelo, 2015, AG 55, 62
998- -Vm 73.9 # 172.18 / 2.33 (Vm H2O = 13.9 cm3/mol)
1004+ -log_k -4.55; -delta_h -6.70
1005+ -analytical_expression 72.244 -1.474e-2 -4040 -23.7823 # fits the appendix data of Appelo, 2015, AG 55, 62
1006+ -Vm 73.9
9991007Anhydrite
10001008 CaSO4 = Ca+2 + SO4-2
1001- -log_k -4.36
1002- -delta_h -1.71 kcal
1003- -analytic 84.9 0 -3135.12 -31.79 # 50 - 160oC, 1 - 1e3 atm, anhydrite dissolution, Blount and Dickson, 1973, Am. Mineral. 58, 323
1009+ log_k -4.25; -delta_h -22.4
1010+ -analytical_expression 5.725 -2.478e-2 -790.4 # 50 - 160oC, 1 - 1e3 atm, anhydrite dissolution, Blount and Dickson, 1973, Am. Mineral. 58, 323
10041011 -Vm 46.1 # 136.14 / 2.95
10051012Celestite
10061013 SrSO4 = Sr+2 + SO4-2
10071014 -log_k -6.63
10081015 -delta_h -4.037 kcal
1009- # -analytic -14805.9622 -2.4660924 756968.533 5436.3588 -40553604.0
10101016 -analytic -7.14 6.11e-3 75 0 0 -1.79e-5 # Howell et al., 1992, JCED 37, 464
10111017 -Vm 46.4
10121018Barite
10131019 BaSO4 = Ba+2 + SO4-2
1014- -log_k -9.97
1015- -delta_h 6.35 kcal
1016- -analytical_expression -282.43 -8.972e-2 5822 113.08 # Blount 1977; Templeton, 1960
1020+ -log_k -9.89; -delta_h 11.82
1021+ -analytical_expression -34.438 -3.316e-2 -1500 15.9485 # Blount 1977; Templeton, 1960
10171022 -Vm 52.9
10181023Arcanite
10191024 K2SO4 = SO4-2 + 2 K+
@@ -1023,12 +1028,14 @@ Arcanite
10231028 -Vm 65.5
10241029Mirabilite
10251030 Na2SO4:10H2O = SO4-2 + 2 Na+ + 10 H2O
1026- -analytical_expression -301.9326 -0.16232 0 141.078 # ref. 3
1031+ -log_k -0.706; -delta_h 124
1032+ -analytical_expression -53.037 0.1242 4562 # ref. 3
10271033 Vm 216
10281034Thenardite
10291035 Na2SO4 = 2 Na+ + SO4-2
1030- -analytical_expression 57.185 8.6024e-2 0 -30.8341 0 -7.6905e-5 # ref. 3
1031- -Vm 52.9
1036+ -log_k 0.65; -delta_h -23.1
1037+ -analytical_expression 159.849 1.699e-2 -5000 -59.6073 # ref. 3
1038+ Vm 52.9
10321039Epsomite
10331040 MgSO4:7H2O = Mg+2 + SO4-2 + 7 H2O
10341041 log_k -1.74; -delta_h 10.57 kJ
@@ -1901,7 +1908,6 @@ Pyrolusite
19011908110 moles = 2e-3 * 6.98e-5 * (1 - sr_pl) * TIME
19021909200 SAVE moles * SOLN_VOL
19031910 -end
1904-
19051911END
19061912# =============================================================================================
19071913#(a) means amorphous. (d) means disordered, or less crystalline.
@@ -1943,14 +1949,14 @@ END
19431949# Av is the Debye-H�ckel limiting slope (DH_AV in PHREEQC basic).
19441950# a0 is the ion-size parameter in the extended Debye-H�ckel equation:
19451951# f(I^0.5) = I^0.5 / (1 + a0 * DH_B * I^0.5),
1946- # a0 = -gamma x for cations, = 0 for anions.
1952+ # a0 = -gamma x for cations, = 0 for anions (or fitted) .
19471953# For details, consult ref. 1 and subroutine calc_vm(tc, pa) in prep.cpp.
19481954# =============================================================================================
19491955# The viscosity is calculated with a (modified) Jones-Dole equation:
19501956# viscos / viscos_0 = 1 + A * Sum(0.5 z_i m_i) + fan * Sum(B_i m_i + D_i m_i n_i)
19511957# Parameters are for calculating the B and D terms:
1952- # -viscosity 9.35e-2 -8.31e-2 2.487e-2 4.49e-4 2.01e-2 1.570 0
1953- # # b0 b1 b2 d1 d2 d3 tan
1958+ # -viscosity 9.35e-2 -8.31e-2 2.487e-2 4.49e-4 2.01e-2 1.570 0
1959+ # # b0 b1 b2 d1 d2 d3 tan
19541960# z_i is absolute charge number, m_i is molality of i
19551961# B_i = b0 + b1 exp(-b2 * tc)
19561962# fan = (2 - tan V_i / V_Cl-), corrects for the volume of anions and neutral species
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