Rust and limescale are two different types of mineral buildup that can occur on metal surfaces, such as pipes or appliances.
Rust is a reddish-brown substance that forms when iron or steel comes into contact with oxygen and water. It is a type of corrosion that can weaken metal structures and make them more prone to breaking or leaking.
Limescale, on the other hand, is a white, chalky substance that forms when hard water deposits minerals such as calcium and magnesium onto surfaces. It is most commonly found in areas with hard water, and can build up on appliances such as kettles, washing machines, and dishwashers.
The main difference between rust and limescale is their composition and the way they form. Rust is primarily composed of iron oxide, while limescale is composed of calcium carbonate and other minerals. Rust forms through a chemical reaction, while limescale forms through a natural process of mineral buildup.
Rust can often be removed using chemical rust removers or abrasive materials, while limescale can be removed using acid-based cleaners or descalers.