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Coulometric production of sulfhydryl reagents: Titrations of lead(II) and copper(II)

✍ Scribed by F. Magno; V. Peruzzo

Publisher
Elsevier Science
Year
1970
Tongue
English
Weight
528 KB
Volume
50
Category
Article
ISSN
0003-2670

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✦ Synopsis

ed ~Zetlroclaiw~ico pvepardiva de1 C.N.R., Padova (Italy) (Rcccivcd Janunry zfjth, I 970)

Sulfhydryl compounds offer a wide range of application to analysis, for they have a strong affinity for certain metals and they possess reducing powers in the high PH range. However, their analytical applications are very limited because of their instability toward atmospheric osidation, limited solubility in water and volatility.

Constant-current coulometric generation has made available many unstable reagentsivz, and has been successfully employed for the production of thioglycollie acid and monothioethylene glycol 3.4. The generating reagents were the stable soluble mercury(H) complexes. The presence of groups other than the sulfhydryl one was found to limit the extension of the applicability of these reagents. On the basis of the good results previously obtained with other electrode systems+0, electrodes such as Ag/A@Pr and Ag/AgSPh, were studied for the production of I-propanethiol and benzenethiol in the work described here.

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