log(Cr)

log(Fe3+)

log(H+)

0.00

−4.10

−8.29

−4.25

0.01

−7.14

−4.11

−8.13

−4.10

0.05

−5.84

−4.05

−7.98

−4.05

0.10

−5.30

−3.99

−7.98

−3.92

0.25

−4.57

−3.85

−7.77

−3.84

0.50

−4.02

−3.68

−7.67

−3.80

0.75

−3.69

−3.56

−7.65

−3.77

0.90

−3.54

−3.50

−7.70

−3.75

0.95

−3.47

−3.48

−7.76

−3.72

0.99

−3.39

−3.47

−7.75

−3.70

1.00

−3.31

−3.47

−7.73

−3.69