Aluminum does not rust. Alumininum can also be anodized to keep it from corroding when salt and other contaminats get on it.
If they are an alloy, they will eventually rust.
Under most conditions aluminum will not rust in water. However, if the aluminum is alloyed with another metal, oxidation (rusting) could take place.
How long will it t take a quarter to rust in fresh water
Aluminium doesn't rust, ever. But it can corrode, which is similar. Anodising offers some protection, but it's all down to how bad the environment is. Bad enough, and any metal will take damage.
As long as you take proper care of them they should last you quite some time. Since aluminum is lightweight and can typically withstand different weather conditions, you should be just fine.
a long time
It depends on the quality of the nail. If it is painted it Amy take long to rust. In general it may take a month or so for the nail to rust.
How long it takes for an aluminum can to biodegrade
Rusting is basically iron reacting with water and oxygen to form iron oxide. Soda accelerates this because it’s acidic and contains sugar. Here’s a detailed breakdown: Why soda speeds up rust Most sodas (cola, lemon-lime) have a pH around 2–3, which is quite acidic. Acid reacts with iron, loosening the surface and allowing oxygen to react faster. Sugar doesn’t directly cause rust, but it can trap moisture on the metal surface, keeping it wet longer. Carbonation (CO₂ dissolved in soda) slightly increases conductivity, which helps the electrochemical reaction. Approximate timeline Thin, untreated iron nail in cola at room temperature: Visible rust: 24–48 hours Heavy rust covering most of the nail: 3–7 days Steel nail with coating or thicker iron: may take longer, several weeks for heavy rust. Tips to speed it up in experiments Heat the soda slightly (warm, not boiling) — increases reaction rate. Shake or stir occasionally to expose fresh liquid to the metal. Scratching or filing the nail surface exposes more iron, rusting faster. ✅ Summary: A plain iron nail in soda will usually start rusting within a day, and be noticeably rusty in 3–7 days depending on conditions.
5 months
50 years
A Few Hours