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Hazard Predictions

• Flammable: Reaction products may be flammable
• Generates gas: Reaction liberates gaseous products and may cause pressurization
• Generates heat: Exothermic reaction at ambient temperatures (releases heat)
• Intense or explosive reaction: Reaction may be particularly intense, violent, or explosive
• Toxic: Reaction products may be toxic

5-azidotetrazole may explode on contact with acetic acid (Thiele, J. et al. 1895. Justus Liebigs Annalen der Chemie. 287:238).

Azides may react with acids to form explosive hydrazoic acid, which is a gas at slightly above ambient temperatures (BP 37C) (Urben, P.G. 1995. Bretherick's Handbook of Reactive Chemical Hazards, 5th Edition, Volume 2. Oxford: Butterworth-Heinemann. pp. 195).

Carboxylic acids may cause azides to decompose to N2 gas (G. L'abbe, "Decomposition and addition reactions of organic azides", Chem. Rev., 1969, 69 (3), pp 345-363).

An acid-base reaction with hydrazine can produce some heat (Predicted).

Aliphatic and aromatic diazo compounds may be decomposed by organic acids, possibly releasing heat and nitrogen gas as reaction products (Predicted).

Potential Gas Byproducts

• Hydrazoic Acid (HN3)
• Nitrogen (N2)