Abstract
The anodic oxidation of the sodium 2-mercaptobenztiazolate anion in alkaline solution yields a finely dispersed difficultly filterable form of di-(2-benztiazolyl)disulfide, an accelerant of the rubber sulfur vulcanization. A crucial problem in the establishing of the continuous di-(2-benztiazolyl)disulfide electrosynthesis is the choice of reaction mixture, which ensures easy filtration of the target product. It was found by using oscillographic voltammetry at platinum microelectrode that the sodium 2-mercaptobenztiazolate anion in aqueous alkaline solution in the presence of 5-methyl-2-hexanol is oxidized to a radical that undergoes dimerization, thus yielding easily filterable form of di-(2-benztiazolyl)disulfide. The obtained result is explained by assuming that the dimer formation occurs in the 5-methyl-2-hexanol adsorption layer at the electrode surface. A reaction scheme of the process is suggested.
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Original Russian Text © E.E. Degtyareva, A.B. Kilimnik, I.A. Ankudimova, 2007, published in Elektrokhimiya, 2007, Vol. 43, No. 10, pp. 1268–1271.
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Degtyareva, E.E., Kilimnik, A.B. & Ankudimova, I.A. Anodic oxidation of sodium 2-mercaptobenztiazolate anion in the presence of 5-methyl-2-hexanol. Russ J Electrochem 43, 1203–1205 (2007). https://doi.org/10.1134/S1023193507100151
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DOI: https://doi.org/10.1134/S1023193507100151