Hydrazine

Hydrazine

Phase Change Information
Specific Heat	48.4 J/mol*K
Latent Heat	4000 J/mol
Min Condensation Pressure	6.3 kPa at 246.236749353 K
Max Liquid Temperature	6000 kPa at 520.807708414 K
Freezes at	246.236749353 K
Liquid Volume	30 L/kmol
Molar Mass	32 g/mol

Phase Diagram of Hydrazine

Stationpedia

Hydrazine is the perfect fuel for space exploration as it requires no oxidiser to combust, only needing heat or a spark. It is more commonly stored in its liquid form Liquid Hydrazine which is stable at room temperature. Hydrazine is extremely reactive and will violently combust in the presence of an oxidiser. It is extremely toxic to all forms of life.

Description

Hydrazine or N₂H₄ is a Monopropellant that ignites at 520.8 K (247.7°C), or when sparked.

Combustion

• 1x = 4x + 306 kJ (Autoignites at 520.808 K (247.7 °C))

Usage

See also: Fuel

Hydrazine has a low combustion enthalpy, making it suboptimal for rocketry applications that require high performance. However, being a monopropellant allows its use in a Pumped Gas Engine or Pressure-Fed Liquid Engine without requiring any premixing, simplifying rocket and/or launch pad design.

Notes

• Hydrazine is extremely toxic to all forms of life, causing damage in concentrations above 0.1% for plants, or 1kPa for Humans and Zrilians. The increased toxicity to plants is only shared with Hydrochloric Acid.

Sources

Hydrazine can be acquired from traders.

Source	Amount
?	?

References

Gases and Liquids
Elements	Compounds	Mixtures	Other
		Fuel (66.6% H2 + 33.3% O2) Superfuel (50% H2 + 50% N2O) Air (75% N2 + 25% O2)	Atmosphere Coolant