| 1 | It is extremely corrosive. | |
| 2 | Stomach acid is one of the most powerful corrosives. | |
| 3 | HF has a pungent odor. It is extremely corrosive. | |
| 4 | But chemical mordents mordants such as allon alum are popular today. | |
| 5 | A caustic or corrosive substance or drug. |