Hi!! I write this letter to confirm the safety of a reation. I've heard that one of my friends made his hands injured because he touched it without knowing that it is the sulfuric acid. And, he told me that he washed his hands with the vinegar. Do you think it is right to use vinegar to cope with such an emergence situation. I thought that since both of them; sulfuric acid, vinegar are acids, it would be more dangerous. Isn't it?/ If so, then what do you think is the best way to cope with such a dangerous situation. In fact, I don't know about chemestry well. But, I couldn't find any place to ask about this kind of problem. I hope to get an answer from you. Thank you!!!