化学实验中的安全问题始终是化学教师在具体教学中需要关注的热点问题。例如,初中化学硫、磷的燃烧实验往往产生有害气体或烟尘,极易给师生造成伤害。为此,笔者利用储气瓶自制了环保型燃烧实验装置。一、实验装置原理为避免燃烧产生的有害气体或烟尘四处扩散,该自制环保型燃烧实验装置可把燃烧过程限制在一个相对封闭的空间,并增加吸收装置,从而尽量减少燃烧产物对环境的污染。二、实验装置材料储气瓶、饮料瓶(用烧热的打孔器在其中上部烙 The safety issue in chemical experiments has always been a hot issue that chemistry teachers need to pay attention to in their specific teaching. For example, chemical sulfur and phosphorus combustion experiments in junior high schools often produce harmful gases or fumes, which can easily cause harm to teachers and students. For this reason, the author used a gas cylinder to make an environmentally friendly combustion experiment device. First, the experimental device principle In order to avoid the combustion of harmful gases or smoke spread everywhere, the self-made environment-friendly combustion experimental device can limit the combustion process in a relatively closed space, and increase the absorption device to minimize the environmental pollution of combustion products . Second, the experimental device material gas cylinders, beverage bottles (with a hot hole in the upper part of the branding