Abstract
During 1964–1965, we examined and reported the utility of thin-layer chromatography for the identification of certain rubber compounding ingredients. These ingredients included amine antioxidants and antiozonants, phenolic antioxidants, guanidines, accelerators, and the amines obtained from accelerators. Each of these groups was examined in an effort to determine the solvent and indicator systems most suitable for the separation and, hence, identification of the largest possible number of compounds in each of the above categories. As a result, the systems we have chosen and described herein should make it possible to identify most of the above named types of compounding materials manufactured in the United States.
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