卤素单质是探究非金属的性质和同主族元素化学性质递变规律的典型物质,并且在实际生产生活中也有广泛地应用。由于卤素单质都有毒、且有强的挥发或升华性,在制备、分装和取用过程中对操作者的身体会造成一定的损害。到目前为止,中学化学实验室还没有存放氯、澳和碘的最佳方法,贮存时会造成这些物质大量外逸,通过开窗通风无法将其完全排出室外,这些物质对铁制品的腐蚀也非常严重。试验结束后,若将 Halogen element is to explore the nature of non-metallic and the same main elements of the chemical composition of the law of gradual change in the law, and in the actual production of life also has a wide range of applications. Halogen element is toxic, and there is strong volatility or sublimation, in the preparation, packaging and access to the operator’s body will cause some damage. So far, the best methods for storing chlorine, O and iodine in chemical laboratories in secondary schools have not yet been found, which can cause massive expulsion of these substances when stored and can not be completely vented through window-opening ventilation. The corrosion of these substances against iron products very serious. After the test, if so