a.问题的提出。氟化氢腐蚀玻璃实验是无机化学实验的重要内容之一 ,也是中学化学的重要演示内容之一。然而在做这一实验时 ,绝大多数实验结果都是现象模糊 ,效果不显著。实验用的玻璃经过去蜡 ,有的仍然是透明如初 ,光滑无损 ,有的则变成了一块毛玻璃 ,实验成功率极低。b.存在 a. The question is raised. Hydrogen fluoride corrosion glass experiment is one of the important contents of inorganic chemistry experiments, and it is also one of the important demonstration contents of middle school chemistry. However, in the experiment, the vast majority of experimental results are ambiguous and the effect is not significant. The experimental glass was dewaxed, and some of them were still transparent, smooth and non-destructive, and some became a piece of frosted glass. The experimental success rate was extremely low. b. existence