Accession Number : AD0802417

Title :   APPLICATION OF METAL IONS TO DETECTION.

Descriptive Note : Quarterly progress rept. no. 1, Jul-Sep 66,

Corporate Author : ARIZONA UNIV TUCSON DEPT OF CHEMISTRY

Personal Author(s) : Freiser, Henry

Report Date : 21 NOV 1966

Pagination or Media Count : 39

Abstract : This program is, in general, concerned with finding a reaction that is either catalyzed or inhibited by trace concentrations of a metal ion or a metal complex, with which a chemical agent of interest can interfere when present in submicro quantities. Preliminary studies were made of three such systems: (1) The effect of ethylenediamine-N,N,N',N'-tetraacetic acid (EDTA) on Mn (II) -catalyzed oxidation of Malachite Green by periodate; (2) the effect of ligands on the Hg (II) - catalyzed oxidation of arsenic (III) by cerium (IV); and (3) the effects of ligands on the Ag (1) - catalyzed oxidation of arsenic (III) by cerium (IV). The preliminary results obtained in each of the systems studied provide sufficient encouragement to justify further exploration. It is expected that practical methods based on the Ce (IV) - As (III) system could be developed for sulfur-containing ligands. New systems involving catalysis by metal ions, such as Cu and Fe will be investigated, since with these metals ligands containing nitrogen and oxygen should have significant effects. (Author)

Descriptors :   *CATALYSIS), *IONS), *MOLECULAR STRUCTURE), (*CHELATE COMPOUNDS, (*TRANSITION METALS, (*CHEMICAL BONDS, METALS, CHEMICAL REACTIONS, ACETIC ACID, MANGANESE, OXIDATION, MERCURY, ARSENIC, CERIUM, SILVER, SULFUR, ETHYLENEDIAMINE, SOLVENTS, DETECTION.

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE