演示白磷自燃现象一向均采用二硫化碳溶解白磷。在缺乏二硫化碳的情况下,我们用苯作溶剂溶解白磷,经多次实验,白磷自燃现象效果良好。做法是取1—2毫升苯注入试管中,再加入一小块白磷(用滤纸条抹干其上的水),然 Demonstration of the phenomenon of spontaneous combustion of white phosphorus has been using carbon disulfide to dissolve white phosphorus. In the absence of carbon disulfide, we used benzene as a solvent to dissolve the white phosphorus. After many experiments, the white phosphorus spontaneous combustion phenomenon was good. The method is to take 1-2 ml of benzene into the test tube, and then add a small piece of white phosphorus (dry it on the filter paper).