SOLID, IN CONTACT WITH WATER, RAPIDLY EYOLVES ACETYLENE GAS, WHICH MAY BE IGNITED BY SPARKS, ACEIYLFNE FORMS IHGHLYEXPLESIVE COMPOUNDS WITH SALTS OF SOME HEAVY METALS. REACTS VIGOROUSLY WITH ACIDS.

• 固体、遇水即产生易燃乙炔气体,该气体遇火可着火,乙炔与某些重金属盐可构成高级爆炸混合物,与酸作用猛烈。