What Is Rust?

• In order to know how to remove a rust stain you need to know exactly what rust is so you are able to use the proper means for removal. Rust is also known by the scientific name iron oxide, which is a compound that is formed from the combination of iron and oxygen in the presence of water. This process is called oxidation, more commonly known as rusting and sometimes as corrosion.
  
  

Rust Stains

• Rust stains appear reddish-brown, especially on clothing. Rust stains on clothing can come from well water because of the high iron content in the water. Most often this can be avoided by making sure there is an excellent filtration system used with a well to eliminate much of the unwanted minerals found in well water. Unfortunately, this doesn't always work to keep all rust stains at bay.
  
  

Removing Rust Stains

• Lemon juice (citric acid) or white vinegar (acetic acid) are both excellent choices for removing rust stains because they are acidic and will dissolve the iron oxide compound. You can use a fresh lemon simply by cutting it in half and squeezing lemon juice directly on the stain. If you don't have a fresh lemon, bottled lemon juice works just as well.
  
  You can also use white vinegar in the same fashion. Pour the white vinegar directly on to the stain. Sprinkle some salt on the stain that is soaked in vinegar and allow this to set and dry.
  
  No matter which option you chose, allow the garment to dry, either in the sun or by lying flat on a table indoors. Once dry, wash in the washing machine according to the manufacture's instructions for the fabric.
  
  

Tips and Warnings

• If you notice rust stains on clothing after washing them, take a look at your washing machine. If the washing machine itself is rusty, it could be the culprit creating the stains on your clothes.
  
  Do not use chlorine bleach to remove rust stains because the bleach will set the stains instead of removing them. If you choose to use commercial rust removers, do so with caution as many of them contain hydrofluoric acid, which is extremely toxic and can burn the skin.