Anhydrous hydrazine (N2H4) is a clear, colorless, hygroscopic liquid with a distinct ammonia-like odor. It is a highly polar solvent, miscible with other polar solvents but immiscible with non-polar solvents.
Anhydrous hydrazine is available in monopropellant and standard grades. Monopropellant grade meet all requirements of the most recent version of Military Specification MIL-P-26536. Specifications for standard grade anhydrous hydrazine are given below.
|
AH Specifications |
|
|
Component |
% by Weight |
|
Hydrazine, min |
98 |
|
Iron, max |
0.003 |
|
Water, max |
1.5 |
|
Aniline, max |
0.5 |
Physical properties of anhydrous hydrazine are given below. Many of these properties are similar to those of water. In addition, anhydrous hydrazine is a strong reducing agent. Mixtures of hydrazine and very strong oxidizers are hypergolic. They also have other properties, such as high specific impulse, which make them valuable as aerospace fuels.
|
AH Typical Physical Properties |
||
|
Density |
@ 25ºC (g/ml) |
1.004 |
|
@ 25ºF (lb/gal) |
8.379 |
|
|
Viscosity |
@ 25ºC (cp) |
0.90 |
|
Boiling Point |
@ 760 mm Hg (ºC) |
113.5 |
|
@ 760 mm Hg (ºF) |
236.3 |
|
|
Freezing Point |
@ 760 mm Hg (ºC) |
2.0 |
|
@ 760 mm Hg (ºF) |
35.6 |
|
|
Flash Point |
TCC (ºC) |
37.8 |
|
TCC (ºF) |
100 |
|
|
Flammable Limits in Air |
(%by vol) |
4.7 - 100 |
For more information on Anhydrous Hydrazine (AH) or our other propellants products, please Contact Us.
