编辑同志:我们地区大都睡火炕,不少家庭每年都要扒炕掏灰。有的家庭图省事,在炕洞口或炕口放些用破布沾的汽油,或直接把汽油倒在这些地方点燃,将炕洞灰顺烟筒清除掉。结果引起爆炸,墙倒炕塌。请问,用汽油清除烧灰为啥会引起爆炸?吉林省蛟河煤矿秦志福秦志福同志:要回答你提的这个问题,得首先谈谈汽油的特性。汽油是一级易燃液体,比水轻,易流动,易挥发,易燃烧、爆炸,闪点为-45℃左右,爆 Editorial comrades: Most of our sleeping kang kang, many families every year to pick Kang kai ash. Some family plans to save trouble, put some in the kang hole or kang mouth stained with gasoline, or petrol directly to the light in these places lit, kong ash ash smoke chimney cleared. The result was an explosion, the wall collapsed kang collapse. Excuse me, with gasoline to eliminate the ash Why can cause an explosion? Jilin Jiaohe Coal Mine Qin Zhifu Comrade Qin Zhifu: To answer your question, we must first talk about the characteristics of gasoline. Gasoline is a flammable liquid, lighter than water, easy to flow, volatile, flammable, explosive, flash point of about -45 ℃, burst