Polythiosemicarbazides. II. Effect of chemical structure on chelating properties. Structure of the chelates

✍ Scribed by Tomic, Ernst A. ;Campbell, Tod W. ;Foldi, Veronika S.

• Publisher: John Wiley and Sons
• Year: 1962
• Weight: 637 KB
• Volume: 62
• Category: Article
• ISSN: 0022-3832
• DOI: 10.1002/pol.1962.1206217411

✦ Synopsis

Abstract

Polythiosemicarbazides react with acqueous Cu^+2^ solutions with formation of polymeric chelates, for which the following structure is typical:

The adsorption of Cu^2+^ by the polymer proceeds selectively and in preference to Fe^3+^, Zn^2+^, W^6+^, Al^3+^, Be^2+^, Cr^3+^, UO~2~^2+^, Ni^2+^, V^5+^, Mo^6+^, Hf^4+^, Zr^4+^, Ta^5+^, Nb^5+^. Separations of these metals from Cu^2+^ are therefore possible.