96
Chemical Oceanography, 4th Edition
Table 3.4
Stability Constants for the Formation of Chloride
and Hydroxide Complexes
Ion
Log K MCl
Log K MOH
Log K MCl – LogK MOH
Ag +
3.1
2.3
0.8
Cd 2+
2.0
5.5
–3.5
Hg 2+
7.3
11.5
–4.2
Zn 2+
–0.5
4.4
–4.9
Cu 2+
0.4
6.3
–5.9
Pb 2+
1.5
7.8
–6.3
Table 3.3
Stability Constants for the Formation
of Fluoride and Hydroxide Complexes
Ion
Log K MF
Log K MOH
Radius
Be 2+
4.29
10.28
0.31 Å
Mg 2+
1.82
2.3
0.65
Ca 2+
1.04
1.4
0.99
Sr 2+
—
0.9
1.13
Ba 2+
0.45
0.8
1.35
log [M]
–16
–14
–12
–10
–8
–6
–4
–2
0
Atomic Number
0
10
20
30
40
50
60
70
80
90
H
Al
Be
Li
P
Br
Sr
Rb
Na
Cl
Si
Mg
K
C
B
N
F
Ca
S
Sc
Ti
V
Cr
Mn
Fe
Co
Ni
Cu
Zn
Ga
As
Se
Mo
Nb
Zr
Ru
Rh Pd
Ag
Cd
In Sn
Sb
I
Ba
Ir
Bi
W
Au
Pb
Tl
Hg
Pt
Re
Lu
Rare
Earths
Cs
Hf
Figure 3.2
The range of concentrations of elements in seawater.