Hydrazine: Difference between revisions

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
	v; t; e;

← Older edit

VisualWikitext

Latest revision as of 00:47, 7 April 2026

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

@@ Line 16: / Line 16: @@
 | heat_capacity_ratio = 1.26 <!--Chemistry.PolyatomicDegreesOfFreedom-->
 }}
+[[File:Phase Diagram of Hydrazine.png|thumb|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 ==
-<blockquote><q>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.</q><br>
+'''Hydrazine''' or '''N<sub>2</sub>H<sub>4</sub>''' is a [[wikipedia:Monopropellant|Monopropellant]]  that ignites at 520.8 K (247.7°C), or when sparked.
-'''- [[Stationpedia]]'''</blockquote>
-'''Hydrazine''' or '''N<sub>2</sub>H<sub>4</sub>''' is a [[Hypergol]]. Hydrazine will spontaneously autoignite at 520.8 K (247.7°C), or at any temperature in the presence of [[Oxygen]], [[Ozone]] or [[Nitrous Oxide]].<!--untested-->
 === Combustion ===
-* 1 mol N2H4 -> 4 mol [[Pollutant|X]] + 306 kJ (autoignition at 247.7°C)
+* {{Combustion|Fuel=Hydrazine, 1|OutputA=Pollutant, 4|ShowAutoignition=true}}
 == Usage ==
 ''See also: [[Fuel]]''
-Hydrazine has a low combustion enthalpy, making it suboptimal for [[rocketry]] applications that require high performance. However, the fact it is 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.
+Hydrazine has a low [[wikipedia:Heat_of_combustion|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 toxic to all forms of life, causing damage in concentrations above 1kPa.
+* 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==