接着剤の熱分解によるシアン化水素の発生

概要

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When binding agents are used at high temperatures, workers often suffer from the poisoning by hydrogen cyanide generated by their decomposition. The authors investigated the relation between the heating temperature and the amount of produced hydrogen cyanide on thermal degradation of binding agents which contain nitrogen atoms in their original compositions. Hydrogen cyanide was not recognized from any binding agents tested below 250℃, while its considerable amounts were generated from nitril rubber and urea resin above 350℃. The mechanisms of production of hydrogen cyanide from these binding agents were considered. In the case of nitril rubber, acid amide would be produced by its hydrolysis at first, and this acid amide may then turn to hydrogen cyanide. In heating urea resin, cyanuric acid may be an intermediate product which turns to hydrogen cyanide gradually.
社団法人日本産業衛生学会の論文
1965-08-20