在切割废弃的循环水管线时管线内部发生燃烧，为什么?？ 对，我现在也在考虑是不是缓蚀阻垢剂等在管壁沉积引起的燃烧，缓蚀阻垢剂的主要成分有有机磷和亚磷酸以及 ... 首先需排除物料串入循环水的风险 百度了一下： reactivity profile phosphorous acid decomposes when heated to form phosphine, a gas that usually ignites spontaneously in air. absorbs oxygen from the air to form phosphoric acid [hawley]. forms yellow deposits in aqueous solution that are spontaneously flammable upon drying. reacts exothermically with chemical bases (for example: amines and inorganic hydroxides) to form salts. these reactions can generate dangerously large amounts of heat in small spaces. dissolution in water or dilution of a concentrated solution with additional water may generate significant heat. reacts in the presence of moisture with active metals, including such structural metals as aluminum and iron, to release hydrogen, a flammable gas. can initiate the polymerization of certain alkenes. reacts with cyanide compounds to release gaseous hydrogen cyanide. may generate flammable and/or toxic gases in contact with dithiocarbamates, isocyanates, mercaptans, nitrides, nitriles, sulfides, and strong reducing agents. additional gas-generating reactions occur with sulfites, nitrites, thiosulfates (to give h2s and so3), dithionites (to give so2), and carbonates (to give co2). 查看更多
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