Hydrazine (H₂N-NH₂)

A colorless, fuming liquid miscible with water, hydrazine (diazine) is a weak base but a strong reducing agent. Hydrazine is used as a rocket fuel because its combustion is highly exothermic and produces 620 KJ/mol:

Hydrazine is produced by the oxidation of ammonia using the Rashig process. Sodium hypochlorite is the oxidizing agent and yields chloramine NH₂Cl as an intermediate. Chloramine further reacts with ammonia producing hydrazine:

Hydrazine is then evaporated from the sodium chloride solution. Hydrazine can also be produced by the Puck process. The oxidizing agent is hydrogen peroxide: