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Rust can be removed from metal using household products like lemon juice, baking soda, vinegar, and steel wool, or you can purchase chemicals to remove it. These include furniture, auto parts, nails and screws, and tin cans. However, steel is the primary metal in engineering and manufacturing, so you’ll find it in many places around the house and in your yard. No matter how long you leave an aluminum can in water, it won’t rust. For metal that rusts under water, such as bridge pillars, it will instead appear green because of a reaction with chloride.īecause rust requires iron, it will only occur in metals that contain iron, such as steel. Rust will appear as a reddish-brown color on the surface of metals and is rough to the touch. It’s actually a combustion reaction, minus the flames you would get with a fire. Simply put, rust occurs when iron reacts with oxygen from water or moisture to produce iron oxide.
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Let’s get to the bottom of the impact of rust on scrap metal. Wet paper and broken glass are examples of tarnished products that will usually be turned away by recyclers.īut what about rusted scrap metal? If you’re trying to recycle metal furniture or car parts that have been left outside, they are likely covered in rust. In the recycling world, the condition of your products is often a crucial factor in determining its recycling market.