硫和铁反应的传统实验方法是把硫粉和铁粉在石棉网上混匀并堆放于其中间位置，将一端已烧红热的玻璃棒立即插入混合物内，观察发生的现象。该法有两方面不足①玻璃棒与混合物接触有限，不能保证它们之间充分反应；②在开放环境中操作，既有硫升华逸出，又难免有二氧化硫跑... The traditional method for the reaction of sulfur and iron is to mix the sulfur powder and iron powder on the asbestos mesh and place them in the middle, and immediately insert the red hot glass rod at one end into the mixture to observe the phenomenon. There are two aspects of this method is insufficient. 1 The contact between the glass rod and the mixture is limited, it can not guarantee the full reaction between them. 2 It is operated in the open environment, both sulfur sublimation escape, and it is inevitable that sulfur dioxide run...