Environmental Engineering Reference
In-Depth Information
Table 1
Conditional stability constants (log
10
K
) of the M-DOM complexes in aqueous solution
Elements or groups
Conditional stability constants (log
10
K
)
pH
References
Fulvic acid
a
Humic acid
a
Tryptophan or
protein or EPS
a
Autochthonou
DOM or hydro-
philic or hydro-
phobic
a
Other organic
ligands
a
Model ligands
Cu
2
+
with COOH and OH
group
-
-
-
-
3.0-6.0
8.15
Martell and Smith
(1974
)
Cu
2
+
with NH
2
(NH
3
)
-
-
-
-
2.8
8.15
Martell and Smith
(1974
)
Cu
2
+
with ethanol amine
-
-
-
-
4.4
8.15
Martell and Smith
(1974
)
Cu
2
+
with glycine (NH
2
-CH
2
-
COOH or NH
3
-
-
-
-
6.6
8.15
Martell and Smith
(1974
)
+
-CH
2
-COO
-
)
Cu
2
+
with ethylene diamine
(NH2-CH
2
-CH
2
-NH
2
)
-
-
-
-
8.5
8.15
Martell and Smith
(1974
)
Cu
2
+
with aspartic acid [HOOC-
CH(NH
2
)-CH
2
-COOH]
-
-
-
-
7.2
8.15
Martell and Smith
(1974
)
Cu
2
+
with iminodiaacetic acid
(HOOC-CH
2
-NH
2
-CH
2
-
COOH)
-
-
-
-
9.4
8.15
Martell and Smith
(1974
)
Cu
2
+
with diaminopropanol
-
-
-
-
8.3
8.15
Martell and Smith
(1974
)
Cu
2
+
with ethylenediamine-N-
acetic acid
-
-
-
-
11.4
8.15
Martell and Smith
(1974
)
Cu
2
+
with diethylenetriamine
-
-
-
-
13.0
8.15
Martell and Smith
(1974
)
Cu
2
+
with fulvic acid (modeled)
9.64 (
K
1
); 3.26 (
K
2
)
-
-
-
-
?
Tipping (
1994
)
Cu
2
+
with fulvic acid (modeled) 4.37 (
K
2
)
-
-
-
-
6
Antunes et al.
(2007
)
Cu
2
+
