Abstract

Abstract The method of amperometric titration has been applied for the quantitative determination of mercaptobenzothiazole, zinc benzothiazolylmercaptide and dibenzothiazolyl disulfide, the latter two being known to constitute the decomposition products of the first during vulcanization reaction. It has been found that mercaptobenzothiazole as it is, or formed by a suitable reaction from the other two accelerators mentioned above, can be quantitatively estimated amperometrically. The total amount of mercaptobenzothiazole present in a mixture of two or all three of the above-mentioned accelerators and also the total amount of mercaptobenzothiazole liberated in a mixture of two or three of them can be quantitatively estimated.

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