Abstract
The molar absorptivities of Pb2+, PbCl+, PbCl2, and PbCl −3 were obtained between 210 and 300 nm. Molar absorptivity data were used to determine lead speciation directly from Pb(II) absorbance characteristics in a variety of media including natural seawater. The absorbance characteristics of lead in a particular chloride medium reveal the lead chloride formation constants appropriate to that medium. Our analyses indicate that lead chloride formation constants are significantly smaller in MgCl2 media than in HCl at constant ionic strength.
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Byrne, R.H., Young, R.W. & Miller, W.L. Lead chloride complexation using ultraviolet molar absorptivity characteristics. J Solution Chem 10, 243–251 (1981). https://doi.org/10.1007/BF00645013
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DOI: https://doi.org/10.1007/BF00645013