In industry demanding purity (food, pharmaceutical, drinking water), high-quality Muriatic Acid is used to control the pH of process water streams. One of the most important applications of Muriatic Acid is in the pickling of steel, to remove rust or iron oxide scale from iron or steel before subsequent processing, such as extrusion, rolling,galvanizing, and other techniques. Technical quality HCl at typically 18% concentration is the most commonly used pickling agent for the pickling of carbon steel grades. Part No. : RXSOL-22-2205-210.