Abstract
The stability constants for the formation of lead (Pb
) with chloride [Formula: see text] have been determined using a spectrophotometric method in NaClO
solutions as a function of ionic strength (0-6 m) and temperature (15-45 °C). The results have been fitted to the equations: [Formula: see text] with standard errors of 0.05, 0.04 and 0.06, respectively. The thermodynamic values of log
, log
and log
at 25.0 °C and the enthalpies of formation of PbCl
, PbCl
and PbCl
are in good agreement with literature values. We have combined our results with the earlier work of Seward (1984) to yield thermodynamic constants that are valid from 15 to 300 °C: [Formula: see text] with standard errors of 0.05, 0.08 and 0.10, respectively.
