硫化氢和二氧化硫都是无色剧毒气体。中学教材要求制取或使用硫化氢和二氧化硫时,必须在密闭系统或通风橱中进行。鉴于普通中学、农村中学(包括部分重点中学在内)实验及设备尚不完善等实际困难。现将有关H_2S和SO_2制取与性质实验的联合装置,介绍如下,供参考。 Both hydrogen sulfide and sulfur dioxide are colorless and highly toxic gases. When secondary school textbooks require the preparation or use of hydrogen sulfide and sulfur dioxide, they must be conducted in closed systems or fume hoods. In view of the fact that ordinary schools and rural middle schools (including some key middle schools) are not yet fully equipped with practical experiments and equipment. The joint device for the preparation of H2S and SO2 and the nature of the experiment is described below for reference.