"R-717" . . "spirit of hartshorn" . "AMMONIA" . "amoniaco" . . "ammoniac" . . "azane" . "ammonia" . "An azane that consists of a single nitrogen atom covelently bonded to three hydrogen atoms." . . "Ammoniak" . "NH3" . "Ammonia" . . "ammonia" . . . . "ammonia" . "[NH3]" .