统编教材高中化学第二册第八节“油脂”里提到肥皂是利用动物性脂肪(牛脂、羊脂等)、植物油和氢氧化钠溶液按一定比例在皂化锅内加热制成的。为了加深学生对皂化反应的理解和应用,提高他们分析问题和解决问题的能力,这里介绍“肥皂的简易制法”作为课外活动的内容。 The textbook on high school chemistry textbook No. 2 in Section 8 “Oil and Grease” mentions that soap is made by heating animal fat (tallow, suet, etc.), vegetable oil, and sodium hydroxide solution in a saponification pan at a certain ratio. In order to deepen students’ understanding and application of the saponification reaction and improve their ability to analyze problems and solve problems, the “simple method of making soap” is introduced here as the content of extracurricular activities.