Which characteristic defines Anhydrous Ammonia according to its hazard statement?

Anhydrous ammonia is recognized primarily as a flammable gas, particularly because it can form explosive mixtures with air in certain concentrations. Its flammability is a key concern in industrial refrigeration and other applications where ammonia is used. When exposed to an ignition source, it can ignite, leading to significant safety risks.

Furthermore, while ammonia does possess certain toxic properties, the defining characteristic emphasized in the hazard statement pertains to its flammable nature. Understanding the flammability of anhydrous ammonia is essential for safety protocols in environments where it is used. Promoting proper handling, storage, and emergency response procedures is vital to minimize the risks associated with its flammable characteristics.