Hydrochloric Acid (33–36%) is a clear, colorless to slightly yellow aqueous solution of hydrogen chloride gas in water, known for its strong corrosive properties and pungent odor. This concentration range is commonly used in industrial applications such as pH control, metal cleaning, water treatment, and chemical synthesis. It is highly reactive with metals and organic materials, making it effective for removing rust and scale. Due to its hazardous nature, it must be handled with appropriate safety measures, including protective equipment and proper ventilation. Hydrochloric Acid (33–36%) is typically supplied in high-density polyethylene containers or bulk tanks, and should be stored in a cool, dry, and well-ventilated area away from incompatible substances.