# Exchangeable cations in diluted seawater
#
SOLUTION 1
 Na 485
 K 10.6
 Mg 55.1
 Ca 10.7
 Cl 566
SOLUTION 2
END

MIX
 1 1
 2 0
EXCHANGE 1
 X 1e-9
USER_GRAPH
 -chart_title "Exchangeable Cations"
 -axis_scale x_axis 0 1 0.2
 -axis_scale y_axis 0 0.7 0.1
 -axis_titles "Fraction of seawater" "Exchangeable Fraction"
 -connect_simulations
 -head fr_sea Na-X K-X Mg-X2 Ca-X2
 -start
 10 graph_x tot("Cl") / 0.566
 20 graph_y mol("NaX")/1e-9, mol("KX")/1e-9, 2*mol("MgX2")/1e-9, 2*mol("CaX2")/1e-9
 -end
END
MIX; 1 0.9; 2 0.1
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.8; 2 0.2
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.7; 2 0.3
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.6; 2 0.4
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.5; 2 0.5
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.4; 2 0.6
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.3; 2 0.7
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.2; 2 0.8
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.1; 2 0.9
EXCHANGE 1
 X 1e-9
END

MIX; 1 0.02; 2 0.98
EXCHANGE 1
 X 1e-9
END