FUMING

Fum″ing, a. Producing fumes, or vapors. Cadet's fuming liquid (Chem.), alkarsin. — Fuming liquor of Libavius (Old Chem.), stannic chloride; the chloride of tin, SnCl4, forming a colorless, mobile liquid which fumes in the air. Mixed with water it solidifies to the so-called butter of tin. — Fuming sulphuric acid. (Chem.) Same as Disulphuric acid, uder Disulphuric.