A colorless,flammable,very poisonous gas,H3As,having an odor like garlic and used in chemical warfare,as a solid-state doping agent,and in organic synthesis.

• 砷化三氢一种无色可燃，毒性大的气体，H3As，有种类似大蒜的气味，用在化学武器中，用作固体添加剂，和用于有机合成。