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Table 1 Dissociation constants of metal organic complex in seawater

From: Speciation of metals in natural waters

Metal [M] [L] log KML Reference
Cu(II) 1–10 nM 2–60 nM 8.5 36–44
Zn(II) 0.1–2 nM 1.2 nM 12 45
Cd(II) 2–800 pM 100 pM 12.0 46
Pb(II) 17–49 pM 200–500 pM 11 47
Ni(II) 1. 7–4.3 nM 2–4 nM 17–19 48
Co(II) 10–103 pM 9–83 pM 11–16 49–51
Fe(III) 0.2–8 nM 0.4–1 3 nM 19–23 52–55