乙炔的实验室制法和性质实验是中学化学和中等师范化学中的非常重要的演示实验及学生实验。教材中采用电石和水反应来制取乙炔。用这种方法制得的乙炔气流不稳定，并且消耗电石较多，同时因所制乙炔气流速度过快易使空气受污染，因此，通常是用饱和食盐水代替水。通过实验定量? Acetylene’s laboratory methods and nature experiments are very important demonstration experiments and student experiments in middle school chemistry and secondary normal chemistry. The use of calcium carbide and water in the textbooks produces acetylene. The acetylene gas flow produced by this method is unstable and consumes more calcium carbide. At the same time, air is polluted due to the fast acetylene gas flow rate. Therefore, saturated brine is usually used instead of water. Quantitative by experiment?