Hydrochloric Acid

SECTION 2: Hazards identification

CAS No.…………………… 7647-01-0 UN No...…………………… 1789 EMERGENCY OVERVIEW Anhydrous hydrogen chloride, also referred to as hydrogen chloride gas, is a clear, colorless gas with an extremely sharp odor. “Anhydrous” means dry or without water. Anhydrous hydrogen chloride is extremely attracted to water and when exposed to air, quickly reacts with the moisture in the air forming fumes, which are a mist of hydrochloric acid. NIACET ® anhydrous hydrogen chloride is sold as liquefied gas. Aqueous hydrochloric acid is a highly corrosive liquid that is formed upon mixing anhydrous hydrogen chloride with water or moisture in the air. It emits a pungent odor and strong fumes in moist air. The color ranges from clear to slightly yellow.

Principle Routes of Exposure

Eyes Severely corrosive to the eyes. Causes severe burns. Contact with rapidly expanding gas may cause burns or frostbite.Skin Severely corrosive to the skin. Causes severe burns. Contact with rapidly expanding gas may cause burns or frostbite. SYMTOPS OF EXPOSURE : Inhalation : Inhalation Toxic by inhalation. Severely corrosive to the respiratory system. Eye Contact : Itching or mild irritation. Skin Contact : Skin inflammation is characterized by itching, scaling, reddening, or, occasionally, blistering. Ingestion : Liquid causes burns, to the digestive tract.

Medical Conditions Generally Aggravated by Exposure

Causes Severe Respiratory Tract, Eye and Skin Burns. Harmful If Inhaled. May Cause Target Organ Damage, Based On Animal Data. Contents under Pressure. REPORTED AS CARCINOGEN OR POTENTIAL CARCINOGEN : Not applicable