Hydrazine: Difference between revisions
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{{Infobox gas | {{Infobox gas | ||
| gas_name = Hydrazine | | gas_name = Hydrazine | ||
| image = Icon- | | image = Icon-Hydrazine.png | ||
| heat = 48.4 J/mol*K <!-- Chemistry.SPECIFIC_HEAT_HYDRAZINE --> | | heat = 48.4 J/mol*K <!-- Chemistry.SPECIFIC_HEAT_HYDRAZINE --> | ||
| latent_heat = 4000 J/mol <!-- LATENT_HEAT_HYDRAZINE --> | | latent_heat = 4000 J/mol <!-- LATENT_HEAT_HYDRAZINE --> | ||
| Line 11: | Line 11: | ||
| coefficient_b = 9.15642808045339 <!-- Chemistry.COEFFIENT_B_HYDRAZINE (sic) --> | | coefficient_b = 9.15642808045339 <!-- Chemistry.COEFFIENT_B_HYDRAZINE (sic) --> | ||
| thermal_efficiency = 0.08 <!-- Liquid hydrazine: 0.00 --> | | thermal_efficiency = 0.08 <!-- Liquid hydrazine: 0.00 --> | ||
| enthalpy = | | enthalpy = 306 kJ / mol <!-- Chemistry.ENTHALPY_HYDRAZINE --> | ||
| liquid_volume = 30 L/kmol <!--Chemistry.MOLAR_VOLUME_HYDRAZINE--> | | liquid_volume = 30 L/kmol <!--Chemistry.MOLAR_VOLUME_HYDRAZINE--> | ||
| molar_mass = 32 g/mol | | molar_mass = 32 g/mol | ||
| heat_capacity_ratio = 1.26 <!--Chemistry.PolyatomicDegreesOfFreedom--> | | 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 == | == Description == | ||
'''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. | |||
'''Hydrazine''' or '''N<sub>2</sub>H<sub>4</sub>''' is a [[ | |||
=== Combustion === | === Combustion === | ||
* 1 | * {{Combustion|Fuel=Hydrazine, 1|OutputA=Pollutant, 4|ShowAutoignition=true}} | ||
== Usage == | == Usage == | ||
''See also: [[Fuel]]'' | ''See also: [[Fuel]]'' | ||
Hydrazine has a low combustion enthalpy, making it suboptimal for rocketry applications that require high performance. However, | 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=== | ===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== | ==Sources== | ||
Hydrazine can be acquired from [[traders]]. | |||
{| class="wikitable" | {| class="wikitable" | ||
|- | |- | ||
! Source !! Amount | ! Source !! Amount | ||
|- | |- | ||
| ? || ? | |? || ? | ||
|} | |} | ||
Latest revision as of 00:47, 7 April 2026
 | |
| 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 |
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
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| Elements | Compounds | Mixtures | Other |
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