Explanation

A general term for hydrazine and its derivatives that can be used as rocket fuel. It generally refers to anhydrous, methyl, unsymmetrical dimethylhydrazine, mixed 50, monopropellant-3, hydrazin-70, UH25, etc. A uniformly transparent liquid with a fishy odor. Soluble in solvents such as water and ethanol, with strong hygroscopicity and emitting white smoke in the air. It is a reducing agent that reacts with many oxidizing substances and can spontaneously ignite when in contact with strong oxidizing agents. The thermal stability improved with the increase of the number of carbon atoms in hydrazine. Not sensitive to impact, compression, friction, gunfire, and vibration. Fire or explosion may occur only in the presence of high temperature, open flame, oxidizer or catalyst. The production process is mature and has been widely applied in the aerospace field. Not only can it be used separately as a fuel for storing liquid propellants, but it can also be composed of mixed hydrazine fuel. unsymmetrical dimethylhydrazine is mixed with kerosene to form oil hydrazine fuel, and mixed with amine fuels to form amine fuel. It often forms bipropellant liquid propellant with oxidizer such as red fuming nitric acid, nitrogen tetroxide, etc., and is widely used in various launch vehicles, strategic missiles and tactical missiles. It is also used for attitude control of launch vehicles and spacecraft orbits.

Classification