Hydrochloric acid is a colorless, highly corrosive acid created by dissolving hydrogen chloride in water. Over the years, hydrochloric acid has been referred to as muriatic acid. The hydrochloric acid developed for municipal water use typically features a hydrogen chloride concentrate of up to 15-32 percent.
For generation of chlorine dioxide, 15% hydorchloric acid is typically used to minimize corrosion and fuming. However, 30% hydrochloric acid is used when the bleach component is eliminated and only sodium chlorite is reacted with hydrochloric acid. Refer to equipment generation pages for the reaction chemistry.
