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Studies on the antioxidants: XI. oxidation products of concomitantly used butylated hydroxyanisole and butylated hydroxytoluene
Author(s) -
Kurechi T.,
Kato T.
Publication year - 1980
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02673944
Subject(s) - butylated hydroxyanisole , butylated hydroxytoluene , chemistry , antioxidant , autoxidation , organic chemistry , toluene , nuclear chemistry
The effects of antioxidants used concomitantly were studied for their contribution to the autoxidation process and for the function‐al mechanism of the antioxidating process. In this study, an equal mixture of butylated hydroxyanisole (BHA) and butylated hydroxy‐toluene (BHT) in benzene was irradiated with ultraviolet rays and the chemical structures and antioxidant activities of the resulting oxides were derived. The chemical changes of the substrates and oxides were followed quantitatively by gas chromatography. The resulting oxide was confirmed to be 3,3′,5′‐tri‐ tert ‐butyl‐5‐methoxy‐2,4′‐dihydroxydiphenyl methane, which was a dehydrogenated dimer of BHA and BHT. The stability study on this compound by AOM showed its strong activity as an antioxidant on lard and soybean oil.