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在人教版高中化学必修一第一章实验1-4中,采用四氯化碳为萃取剂来萃取碘水中的碘。实验结束时只是将溶有碘的四氯化碳和失去碘的水通过分液操作加以分离,但如何将碘和四氯化碳进行分离以及四氯化碳又如何回收等问题,教材中没有提及。如果在中学化学知识范畴内,师生一
In the People’s Education Edition High School Chemistry Compulsory a first chapter experiments 1-4, the use of carbon tetrachloride as extractant to extract iodine in iodine. At the end of the experiment, only iodine-dissolved carbon tetrachloride and iodine-depleted water were separated by liquid separation. However, how to separate iodine from carbon tetrachloride and how to recover carbon tetrachloride were not included in the textbooks Mentioned. If the chemical knowledge in secondary schools, teachers and students one