Accession Number:

AD0611203

Title:

CHELOMETRIC TITRATIONS WITH AMPEROMETRIC END POINT DETECTION.

Descriptive Note:

Corporate Author:

NORTH CAROLINA UNIV CHAPEL HILL

Personal Author(s):

Report Date:

1960-01-01

Pagination or Media Count:

20.0

Abstract:

The use of the anodic chelon wave as the indicator wave in amperometric titrations extends the usefulness of amperometric analysis by including those metal ions that exhibit ill-defined reduction waves. Furthermore, mixtures of metal ions whose log K values differ by less than 4 units can be titrated selectively, a procedure that is not practical by potentiometric analysis. This method allows the choice of both buffers and chelons in order to obtain optimum selectivity. The time required for an analysis is much less than for the usual amperometric methods since dissolved oxygen need not be removed from the system and the solution can be stirred continuously. A primary disadvantage of the method is the interference from halide ions. However, with reasonable care, this difficulty is avoided by excluding halide ions from the analytical solution.

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE