Appearance: Blood red fuming liquid, similar to bromine ; Dark red fuming liquid with pungent odour ; Deep-red liquid with a musty, burning, acrid odor. [Note: Fumes in moist air.]
Other names: Hydrochloric acid, M, Uriatic acidHydronium chloride, Chlorhydric Acid, Hydrochloric acid gas, HCl, Anhydrous hydrogen chloride, Hydrochloric acid, anhydrous, Aqueous hydrogen chloride, [Note: Often used in an aqueous solution.]
Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]