论文部分内容阅读
第一章卤族元素实验作业(一) 氯的制法及性质本课实验目的:在於了解氯的实验窒制法和研究气的物理性及化学性。实验2 用95图仪器制氯,在发生气的大试管中加入一克高锰酸钾和 6毫升的浓盐酸。实验3 装满氯的1.2试管中分别投入预热的铁粉和红热的细铜丝。实验4 装满氯的第三试管,投入热松节油浸湿的夹泸纸条。
The first chapter of the halogen element experiment (a) the preparation of chlorine and nature of the purpose of this lesson: is to understand the experimental chlorine method of asphyxia method and research gas physical and chemical. Experiment 2 Chlorine was prepared from 95 apparatus, and one gram of potassium permanganate and 6 ml of concentrated hydrochloric acid were added to the large test tube where the gas was generated. Experiment 3 filled with 1.2 tubes of chlorine were put in preheated iron powder and red hot thin copper wire. Experiment 4 filled with a third test tube of chlorine, into the hot turpentine wet folder Lu paper.