It is a clear, colorless liquid. It is relatively thick and oily. Another common name for sulfuric acid is oil of vitriol. When heated, it can produce strong, thick, acrid odors. Otherwise, it does not have any scent. It is also tasteless, although harmful if swallowed. Sulfuric acid can be utilized in a broad range of industries, and it is found in the production of many different products, including dyes, resins, detergents, nylon, explosives, batteries, and even oil refinement. However, the primary purpose of this acid is to make phosphoric acid, which is a key ingredient in most fertilizers. It can also be used as a cleaning agent, particularly to remove rust and limescale from most metals. Due to its corrosive nature, gloves and goggles must be worn at all times. A breathing mask should also be used to prevent accidental inhalation. Sulfuric acid is not flammable, but it must be stored in a cool, dry area.