DMAZ

1. Description

DMAZ 2-dimethylaminoethylazide is liquid rocket fuel. Many of its physicochemical properties are similar to monomethylhydrazine (MMH). Therefore, DMAZ is a great candidate that could replace this carcinogenic and toxic substance in the future. Studies carried out so far indicate that the use of this alternative is definitely greater. What’s more, DMAZ can be used both in two-component systems – as a fuel with an oxidizer – or in one-component systems, as an independent propellant. A very beneficial advantage is also hyperergolic (spontaneous) ignition in contact with some oxidants, which eliminates the need for an additional ignition system in the engine. Although DMAZ belongs to the group of organic azides, thanks to its molecular structure it turns out to be definitely a more stable compound than others in this group. This substance shows neither sensitivity to impact or friction, nor explosive properties. At present, protecting the environment and limiting the use of hazardous substances is becoming increasingly important. The same trend is also observed in the space industry. Alternative green rocket fuels that could replace hydrazine are sought. DMAZ is one such candidate.

2. Technical data

Molar mass

114 g/mol

Specific pulse

308,2 s

Enthalpy of creation

586 cal/g

Boiling point

135°C

Melting point

-68,9°C

Density

0,933 g/cm3

Viscosity

2 cP

Surface tension

25 dyn/cm

Flash point

29,4°C

Specific impulse (DMAZ-NTO)

352 s

Density pulse (DMAZ-NTO)

457,6 s