Hydrogen azide

Poison by intraperitoneal route. Mildly toxic by inhalation. A severe irritant to skin, eyes, and mucous membranes. Continued inhalation causes central nervous system problems in humans (changes in EEG, somnolence, cough, headache, change in heart rate, fall in blood pressure, collapse, chills, and fever). High concentrations can cause fatal convulsions. Chronic exposure has been reported to cause injury to kidneys and spleen, hypotension, palpitation, ataxia, weakness. A dangerously sensitive explosive hazard when shocked or exposed to heat. Reacts with heavy metals to form very unstable heavy metal azides. Reacts violently with Cd, Cu, Ni, HNO3, F2. When heated to decomposition it emits toxic fumes of NOx. See also AZIDES.