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Vol. 32 No. 3
May-June 2010

Making an imPACt | Recent IUPAC technical reports and recommendations that affect the many fields of pure and applied chemistry.
See also www.iupac.org/publications/pac

Chemical Speciation of Environmentally Significant Metals with Inorganic Ligands. Part 3: The Pb2+ + OH, Cl, CO32–, SO42–, and PO43– Systems (IUPAC Technical Report)
Kipton J. Powell, et al
Pure and Applied Chemistry, 2009
Vol. 81, No. 12, pp. 2425–2476

Complex formation between PbII and the common environmental inorganic ligands, Cl, OH, CO32–, SO42–, and PO43-, can be significant in natural waters with low concentrations of organic matter. Numerical modeling of the speciation of PbII among these inorganic ligands requires reliable values for the relevant stability (formation) constants. This paper provides a critical review of such constants and related thermodynamic data.

This review is the third in a series relevant to the speciation of heavy metal ions in environmental waters of low to moderate ionic strength. It provides access to the best available equilibrium data for use in chemical speciation modeling of reactions of Pb2+ with the major inorganic ligands present in environmental systems: Cl–, OH, CO32–, SO42–, and PO43-. The previous reviews in this series were on the Hg2+ and Cu2+ complexation reactions with these ligands.

http://dx.doi.org/10.1351/PAC-REP-09-03-05


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