Dimethylamine in the Extracts of Rubber Articles Used in Contact with Foods:Hygienic Chemistry of Rubber Articles Used in Contact with Foods. V

概要

論文の詳細を見る
Dimethylamine (DMA) levels in the extracts of 25 rubber articles were studied by gas chromatography. DMA was detected in H2O or 1N HCl extracts of 15 samples obtained under reflux for 1 hour, in amounts of 3-1280 and 17-2830mg/kg, respectively.Vulcanizing accelerators containing dimethylamino groups in their structures were detected in benzene extracts of these rubber articles by thin layer chromatography.Thiuram-type vulcanizing accelerators were almost completely decomposed to DMA on reflux with H2O or 1N HCl for 1 hour, but dithiocarbamate degradation varied very greatly depending on the kind of solvent and the salts present.It can be concluded that DMA in rubber extracts is the decomposition product of vulcanizing accelerators containing dimethylamino group in their structures, and that DMA can be extracted fairly effectively from unaltered vulcanizing accelerators in rubber articles using H2O or 1N HCl.
公益社団法人日本食品衛生学会の論文