What chemicals are in Iron Out and how do they work to remove rust and stains effectively?

Iron Out contains chemicals such as sodium metabisulfite and citric acid. These chemicals work by breaking down the iron oxide molecules in rust and stains, making them easier to remove. Sodium metabisulfite reacts with the iron oxide to form a soluble compound, while citric acid helps to dissolve and lift the rust and stains from the surface. Together, these chemicals effectively remove rust and stains from various surfaces.