Hydrazine - Revision history

Jebadiha: Fixed incorrect description stating Hydrazine was hypergolic & added some links.

2026-04-03T05:08:21Z

Fixed incorrect description stating Hydrazine was hypergolic & added some links.

← Older revision		Revision as of 05:08, 3 April 2026
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	'''- [[Stationpedia]]'''</blockquote>		'''- [[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-->~~		'''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.

	=== Combustion ===		=== Combustion ===
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	''See also: [[Fuel]]''		''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===		===Notes===

Jebadiha: Added Phase Diagram

2026-03-26T04:47:20Z

Added Phase Diagram

← Older revision		Revision as of 04:47, 26 March 2026
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	\| 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]]

	== Description ==		== Description ==

RA2lover: /* Notes */ note hydrazine is 10x more toxic to plants than pollutant is

2026-03-17T04:47:38Z

Notes: note hydrazine is 10x more toxic to plants than pollutant is

← Older revision		Revision as of 04:47, 17 March 2026
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	===Notes===		===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==		==Sources==

RA2lover: /* Combustion */ Move to combustion template, will fix it soon.

2026-03-16T22:46:19Z

Combustion: Move to combustion template, will fix it soon.

← Older revision		Revision as of 22:46, 16 March 2026
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	=== Combustion ===		=== 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 ==		== Usage ==

RA2lover: Fix icon, add source

2026-03-13T02:25:47Z

Fix icon, add source

← Older revision		Revision as of 02:25, 13 March 2026
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	{{Infobox gas		{{Infobox gas
	\| gas_name = Hydrazine		\| gas_name = Hydrazine
	\| image = Icon-~~hydrazine~~.png		\| 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 -->
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	===Notes===		===Notes===
	~~TBW~~
			* Hydrazine is toxic to all forms of life, causing damage in concentrations above 1kPa.

	==Sources==		==Sources==
			Hydrazine can be acquired from [[traders]].
	{\| class="wikitable"		{\| class="wikitable"
	\|-		\|-
	! Source !! Amount		! Source !! Amount
	\|-		\|-
	\| ? \|\| ?		\|? \|\| ?
	\|}		\|}

RA2lover: Update data to 0.2.6203.27017 values(assuming the changes mentioned on changelog were the only ones)

2026-03-13T02:02:53Z

Update data to 0.2.6203.27017 values(assuming the changes mentioned on changelog were the only ones)

← Older revision		Revision as of 02:02, 13 March 2026
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	\| 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 = ~~204~~ kJ / mol <!-- Chemistry.ENTHALPY_HYDRAZINE -->		\| 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
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	== Description ==		== 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>		<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>
	'''- Stationpedia'''</blockquote>		'''- [[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-->		'''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 ===		=== Combustion ===
	* 1 mol N2H4 -> 4 mol [[Pollutant\|X]] + ~~204~~ kJ (autoignition at 247.7°C)		* 1 mol N2H4 -> 4 mol [[Pollutant\|X]] + 306 kJ (autoignition at 247.7°C)

	== 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, 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 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.

	===Notes===		===Notes===

RA2lover: Footgunning myself at this point

2026-02-25T07:06:35Z

Footgunning myself at this point

New page

{{Infobox gas
| gas_name = Hydrazine
| image = Icon-hydrazine.png
| heat = 48.4 J/mol*K 
| latent_heat = 4000 J/mol 
| minimum_condensation = 6.3 kPa at 246.236749353 K
| max_liquid = 6000 kPa at 520.807708414 K 
| freezes = 246.236749353 K
| autoignition_temperature = 520.807708414 K
| coefficient_a = 8E-22 
| coefficient_b = 9.15642808045339 
| thermal_efficiency = 0.08 
| enthalpy = 204 kJ / mol 
| liquid_volume = 30 L/kmol 
| molar_mass = 32 g/mol
| heat_capacity_ratio = 1.26 
}}

== 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> 
'''- Stationpedia'''</blockquote>

'''Hydrazine''' or '''N2H4''' 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]].

=== Combustion ===
* 1 mol N2H4 -> 4 mol [[Pollutant|X]] + 204 kJ (autoignition at 247.7°C)

== 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.

===Notes===
TBW

==Sources==

{| class="wikitable"
|-
! Source !! Amount
|-
| ? || ?
|}

== References ==
<References />
{{:Gases and Liquids/Menu}}
[[Category:Gas]][[Category:Liquid]]