When should ammonia or other hazardous materials be used with liquid oxygen?

Using ammonia or other hazardous materials in conjunction with liquid oxygen is never safe due to the highly reactive nature of these substances. Liquid oxygen is an oxidizer that significantly increases the risk of combustion and explosion when in contact with flammable materials, including ammonia. The presence of oxygen allows even small amounts of flammable substances to ignite and cause dangerous reactions.

In practical terms, since liquid oxygen can rapidly intensify fires and facilitate violent reactions, safety protocols and regulations universally advise against their combination. Situations involving liquid oxygen require stringent safety measures to prevent interactions that could lead to catastrophic failures. Therefore, the statement that it’s never safe aligns with the principles of chemical safety and safe handling practices.