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考点一、实验安全的注意事项与实验事故的处理1.安全中要注意“三禁七防”:(1)三禁:1禁止手触、鼻闻、口尝;2禁止一盏酒精灯点燃另一盏酒精灯;3加热液体时禁止试管口对着人.(2)七防:1防爆炸;2防暴沸;3防失火;4防中毒;5防倒吸;6防烫伤;7防仪器炸裂.2.常见的意外事故的处理:(1)酒精及其它易燃有机物小面积失火,应立即用湿布扑灭;(2)钠、磷等失火应迅速用砂覆
Test points First, the experimental safety precautions and the handling of experimental accidents 1. Safety should pay attention to “three ban seven defenses”: (1) three ban: 1 Prohibition of hand touch, nose smell, taste; 2 ban an alcohol Lamp ignites another alcohol lamp; 3 when the liquid is heated, the test tube mouth is forbidden to face to the person. (2) Seven defenses: 1 Explosion-proof; 2 Riot boiling; 3 Anti-misfire; 4 Anti-poisoning; 7 anti-explosion equipment .2 common accidental treatment: (1) small areas of alcohol and other flammable organic matter should be extinguished with a damp cloth; (2) sodium, phosphorus and other fire should be promptly covered with sand