在车间检修实践中经常听到这样一句话：硫酸罐不用清洗，它不燃烧，可以动火。那么硫酸罐到底该不该清洗呢？我们知道浓硫酸是一种强酸，具有强氧化性，可与许多金属反应生成氢气，而氢气是一种易燃易爆的危险气体，爆炸下限仅为４．１％。许多企业尤其是中小型企业一般用碳钢 In the workshop overhaul practice often hear such a sentence: sulfuric acid tank without cleaning, it does not burn, you can move fire. So sulfuric acid cans in the end should not be cleaned? We know that concentrated sulfuric acid is a strong acid with a strong oxidizing ability to react with many metals to produce hydrogen, which is a flammable and explosive hazardous gas with a lower explosion limit of only 4.1%. Many companies, especially small and medium-sized enterprises, generally use carbon steel