Ultra Pure hydrazine is aniline-free. No aniline is detectable at the detection limit of specified analysis procedures. Specifications for Monopropellant Grade, High Purity Grade and Ultra Pure hydrazine are given in Table 1 below. Physical properties of Ultra Pure hydrazine are given in Table 2 below. Many of these properties are similar to those of water.
Anhydrous hydrazine is a strong reducing agent.
Hydrazine and hydrazine blends are used as fuels in hypergolic bipropellant combinations. They also have other properties, such as high specific impulse. Anhydrous hydrazine in contact with platinum group metal catalysts will decompose in a controlled reaction and can be used as a monopropellant. Ultra Pure hydrazine is very hygroscopic. It also readily absorbs carbon dioxide from the air.