0 Question: Why do nails not rust in tap water that has been boiled to remove dissolved gases? Keywords: experiment, water Asked by anon-225185 to Simon, Paul, Nawapat, Natalie, Katy on 20 Nov 2019.
Paul Laurance-Young answered on 20 Nov 2019:
It will rust eventually, for reasons that are to do with gas exchange and water dissociation! However, short term: When you boil the dissolved gas out, you remove the oxygen in the water. Rust is iron plus oxygen = iron oxide. No oxygen = no rust.
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