Corrosive liquid tanks are DOT412. These are used to transport a wide variety of heavy liquid corrosive materials, both acids and bases. These tanks are cylindrical and have a smaller diameter than other tankers due to the weight of the corrosives they carry.

These tanks are constructed of a single tank that carries up to 7,000 gallons, with most tanks holding 5,000 or fewer gallons. The tanks are made of stainless steel and are usually lined to protected against corrosion. The piping may be on the top middle of the tank, but is usually located on the end. The piping is usually contained within a housing that includes the manhole and offload piping. This housing protects the piping in the event of a rollover. This area around the manhole is usually coated with a material that resists the chemical being carried and is usually a black, tar-like coating.