自じ己こ反はん応のう性せい物ぶっ質しつ

noun

self-reactive substance

Technical term in chemistry for a substance that can undergo a strongly exothermic decomposition even without oxygen, often subject to transport and storage regulations.

• 自じ己こ反はん応のう性せい物ぶっ質しつは、国こく連れんの危き険けん物ぶつ輸ゆ送そう規き則そくでクラス4.1に分ぶん類るいされる。

  Self-reactive substances are classified as Class 4.1 under the UN dangerous goods transport regulations.

• この化か合ごう物ぶつは自じ己こ反はん応のう性せい物ぶっ質しつに該がい当とうするため、保ほ管かん温おん度どを厳げん密みつに管かん理りする必ひつ要ようがある。

  Because this compound is a self-reactive substance, its storage temperature must be strictly controlled.