A spectroscopic study of the structure of the barium salt of p-isononylphenol sulfide
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The barium salt of p-isononylphenol sulfide, one of a series of current motor oil additives, has been characterized on the basis of its infrared spectrum, as have phenol, p-isononylphenol, p-isononylphenol sulfide, and barium isononylphenolate, which are involved in its synthesis as precursors or by-products. The extent of conversion of pisononylphenol sulfide to the corresponding barium salt may be characterized by the decrease in intensity of the OH group absorption bands at 3400 and 1175 cm−1, corresponding to stretching and bending vibrational modes, respectively. The 1175 cm−1 band may be used for kinetic studies and control analyses of the synthesis of the barium salt of p-isononylphenol sulfide.
KeywordsSulfide Phenol Absorption Band Barium Infrared Spectrum
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