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2. The Best Rust Removers Keep Tools and Gear Shining

   www.aol.com/lifestyle/best-rust-removers...

   Given that, acid chemical rust removers are best limited to removing rust from bare iron and steel. Sodium hydrosulfite, a more gentle option, requires a longer soaking time, but won’t scar or ...

3. Stain removal - Wikipedia

   en.wikipedia.org/wiki/Stain_removal

   Oxalic acid is used widely as an acid rinse in the laundry industry due to its ability to remove rust and ink stains. Oxalic acid converts insoluble iron compounds into a soluble complex ion. It is because of this property that oxalic acid is one of the primary components in commercial solutions used to remove scale from automobile radiators. [5]

4. Rust converter - Wikipedia

   en.wikipedia.org/wiki/Rust_converter

   Rust converters are chemical solutions or primers that can be applied directly to an iron or iron alloy surface to convert iron oxides into a protective chemical barrier. These compounds interact with iron oxides, especially iron(III) oxide , converting them into an adherent black layer ( black oxide ) that is more resistant to moisture and ...

5. You Can Use Vinegar and Baking Soda To Remove Rust - AOL

   www.aol.com/lifestyle/vinegar-baking-soda-remove...

   Once you've removed the rust, rinse the object with clean water to remove any remaining vinegar-and-salt residue and place it back into the container with fresh water. Add two tablespoons of ...

6. Pickling (metal) - Wikipedia

   en.wikipedia.org/wiki/Pickling_(metal)

   Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminum alloys. [1] A solution called pickle liquor, which usually contains acid, is used to remove the surface impurities.

7. Rust - Wikipedia

   en.wikipedia.org/wiki/Rust

   Rust scale forming and flaking off from a steel bar heated to its forging temperature of 1200°C. Rapid oxidation occurs when heated steel is exposed to air. Rust is a general name for a complex of oxides and hydroxides of iron, [4] which occur when iron or some alloys that contain iron are exposed to oxygen and moisture for a long period of ...