Nital is a type of nitric acid that is commonly used for metal etching and other metal surface treatments, such as surface cleaning, coating, and finishing. This acid is routinely used to clean and prepare metal before welding, application of powder coating, and other finishing processes. Due to its relatively high concentration and caustic nature, Nital is considered to be a hazardous substance and should be handled with extreme care. It gives off a unique, pungent odor, and interacting with it should be avoided. Nital acid solutions are commonly found in a range of concentrations, and they are widely used in metalworking and automotive shops.