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P. Fix and -. , Fraction speciation calculationLog Conc. mol/l" -axis_scale x_axis 1 24 -axis_scale y_axis 0 0.01 -head Fraction Sx-Sy-Sz-SxCu+ SyCu+ SzCu+ SxCa+ SyCa+ SzCa+2 Ca++ Cu++ pH -start ; 10 graph_x "Fraction" 15 graph_y mol, mol mol, p.mol mol

-. Sy and . Syh, 097 #constante de protonation du malate Sy-+ 2H+ = SyH2+ ; log_k 8.556 #deuxième cste de protonation du malate Sz-+ H+ = SzH ; log_k 5.097 #constante de protonation du malate Sz-+ 2H+ = SzH2+ ; log_k 8.556 #deuxième cste de protonation du malate Cu+2 + Sx-= CuSx+, malate cste Ca+2 + Sx-= CaSx+ ; log_k 2.72 # 2.72 malate cste

+. Cu+2 and . Cusy+, 83 # 4.53 malate cste Ca+2 + Sy-= CaSy+

+. Cu+2 and . Cusz+, 83 # 5.53 malate cste Ca+2 + Sz-= CaSz+ ; log_k 2.72 # 2.72 malate cste # Sol NATW solution 1 ; Sx 5.2 ; Sy 3.7 ; Sz 3.4 ; Cu(+2) 0.11 ; pH 7.6; reaction ; Ca(NO3)2 ; 0.14 ; equilibrium_phases ; Fix-pH -6

+. Cu+2 and . Cusy+, 53 # 5.53 malate cste Ca+2 + Sy-= CaSy+

+. Cu+2 and . Cusz+, 72 malate cste # Sol CCTW solution 1 ; Sx 16.0 ; Sy 2.9 ; Sz 3.4 ; Cu(+2) 0.15 ; pH 7.5; reaction ; Ca(NO3)2 ; 0.14 ; equilibrium_phases ; Fix-pH -6.4 HNO3 ; end # > 250 µm #valeur Sx=48 solution 1 ; Sx 26.6 ; Sy 3.8 ; Sz 3.9 ; Cu(+2) 0.15 ; pH 7.5; reaction ; Ca(NO3)2 ; 0.14 ; equilibrium_phases ; Fix-pH -6.3 HNO3 ; end # 250à63 µm solution 1 ; Sx 8.2 ; Sy 4.8 ; Sz 12.4 ; Cu(+2) 0.09 ; pH 7.3; reaction ; Ca(NO3)2 ; 0.14 ; equilibrium_phases ; Fix-pH -6.05 HNO3 ; end # 63à20 µm solution 1 ; Sx 33.9 ; Sy 22.3 ; Sz 11.3 ; Cu(+2) 0.39 ; pH 7.2; reaction ; Ca(NO3)2 ; 0.14 ; equilibrium_phases ; Fix-pH -6.2 HNO3 ; end # 20à2 µm solution 1, 53 # 5.53 malate Ca+2 + Sz-= CaSz+ ; log_k 2.72 # 2 #constante pour les sols contaminés T0 Cu+2 + Sx-= CuSx+, p.53

+. Cu+2 and . Cusy+, 53 # 4.53 malate cste Ca+2 + Sy-= CaSy+

+. Cu+2 and . Cusz+, 53 # 4.53 malate cste Ca+2 + Sz-= CaSz+