Arsine is a colorless, non-irritating, highly toxic gas with a mild garlic odor. Arsine is part of electronic gases and is one of the simplest arsenic compounds. Its chemical formula is AsH3.
It is flammable and explosive and can get ignited by heat, flames, or sparks. It is also soluble in water and has a boiling point of -62.5ºC.
It generally ships in cylinders as a compressed liquefied gas.