# Will an iron nail sunk in a highly concentrated salt solution rust?

Assume I have a salt solution with the same concentration as the dead sea and I put a iron nail into the solution (assume it sinks). Will it rust? If yes, why? If no, why not?

• IMO, very vague question – RE60K Nov 20 '14 at 12:15

Rust is iron oxide, $(\ce{Fe2O3.nH2O})$
$\ce{4Fe(s) + 6H2O +3O2 ->4Fe(OH)3(s)}$