“测定空气中氧气含量”实验的改进

Improved Experiment of “Measuring Oxygen Content in Air”

针对沪教版九年级化学教材中“测定空气中氧气含量”实验存在的不足,在文献研究的基础上设计和优化实验,得到一种利用铁粉吸氧腐蚀原理和连通器装置的改进方案。改进方案具有原料廉价易得、绿色环保、装置简约、操作简便、现象明显、动态可视、科学高效、安全可靠的优点。

In view of the shortcomings of the experiment of “measuring oxygen content in air” in the ninth-grade chemistry textbook of Shanghai. On the basis of the literature research, this paper designed and optimized the experiment, and made an improved plan based on the principle of oxygen absorption corrosion and communicating vessel. It had the advantages of cheap raw materials, environmentally friendly, simple device, easy operation, obvious phenomena, dynamic visibility, scientific and efficient, safe and reliable.