Which substance is used to remove rust from metal?
lye
hydrochloric acid
ammonia
sulfuric acid

Hydrochloric acid ( ) is often employed to remove rust because it effectively reacts with iron oxide, the compound that forms rust, and dissolves it in the process. However, this powerful acid must be used with caution, as it can also corrode the underlying metal if not properly neutralized afterward. Always wear protective gear and ensure you’re in a well-ventilated area!

For a more environmentally friendly approach, some people use a vinegar solution, which contains acetic acid that breaks down rust without causing harm to the metal. Many DIY enthusiasts swear by this method, as it’s not only safe but also highly effective for light rusting. Plus, it makes the whole rust-removal process feel like more of a home improvement adventure!