Stability constants of complexes of metal ions with peatsoil humic acids under non-acid-conditions
2021 ◽
Vol 14
(1)
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pp. 54-63
Keyword(s):
Stability constants of complexes of four divalent metal ions viz. Cu2+, Pb2+,Mg2+ and Cd2+ with humic acids (HA) were determined by potentiometric titration of humic acids with the corresponding salt of the divalent metals in aqueous media under non-acid-condition. The log K (logarithm of the stability constant) ranged from 1.0942 to 2.7471 for metal-humic acid complexes were determined using point-wise computational method. The order of stability constants were obtained as follows: Cu >Pb> Cd > Mg for metal -HA complexes respectively, indicating a higher degree of complexation with Cu metal ion.
1982 ◽
Vol 47
(4)
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pp. 1078-1085
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1969 ◽
Vol 47
(12)
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pp. 2320-2323
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Keyword(s):
Keyword(s):
2008 ◽
Vol 27
(2)
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pp. 157
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1972 ◽
Vol 34
(4)
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pp. 1291-1295
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1966 ◽
Vol 28
(12)
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pp. 2911-2917
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1965 ◽
Vol 38
(5)
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pp. 771-777
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