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The hydrogen-peroxide tag has no summary.
20 questions
20
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What is the MXP-351 storable bipropellant?
Masten Space Systems has a proprietary hypergolic bipropellant called MXP-351 intended for use in the XL-1 lunar lander. We seem to know the following information:
Non-cryogenic, with storage life of "...
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19
votes
1
answer
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Does the Soyuz spacecraft use chemically stabilized hydrogen peroxide (H?O?) to remain ISS-dockable for 200+ days?
Hydrogen peroxide (H2O2) from the local shop (dilute, 2-3%) sometimes has a stabilizer to slow its breakdown rate and increase its "shelf-life", since we'd like to keep it around the house on our ...
- 154k
14
votes
1
answer
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Can a Soyuz-MS still propel itself back to earth if all its Hydrogen Peroxide decomposed?
In this answer it is stated that:
If the fuel fully decomposes then return to Earth is still possible but only via ballistic descent
I find it a little bit surprising, but maybe there is enough Δv ...
- 13.1k
12
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1
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Have there been rocket engines designed for diesel? What ISP theoretically possible?
Have there been rocket engines or even test engines that have used diesel as a fuel? If so, what oxidizer had they used and what ISP did they achieve? If not, is it possible to say what ISP is at ...
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11
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6
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When has hydrogen peroxide been used in rocketry?
Peroxide is apparently a very good propellant, but I can't seem to find any instance of it being used. Has it ever been used and if not, why hasn't it? What's its downsides?
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Does hydrogen peroxide work as a rocket fuel oxidizer by itself?
Suppose an aerospace company is building a rocket engine. Their fuel is isopropanol. They don't have access to LOX or another common oxidizer, and the engine cannot be air-breathing. They only have ...
9
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3
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How easy is it to use liquid nitrogen dioxide as an oxidizer?
I was reading a similar question as mine here. But no one talked about nitrogen dioxide (NO2). Its boiling point is 21 °C, so it is easy to store. But how easy it is to handle compared to hydrogen ...
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8
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1
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What is the propellant mass for the Soyuz descent module?
I learned some time ago that the Soyuz capsules use hydrogen peroxide as a monopropellant. I'm trying to use this fact for a chemistry question posed to my students, but I cannot find anywhere how ...
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6
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1
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HTP as oxidizer for main propulsion
Please anyone elaborate why hydrogen peroxide is not used as an oxidizer for main propulsion. I see that everyone agrees on this but from my point of view its a big flaw. I think that industry has ...
- 89
6
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3
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Hypergolic Propellant Combination
Is Rocket Grade Hydrogen Peroxide and Liquid Hydrogen a hypergolic propellant combination? I recall, seeing the combination somewhere on the www, however I couldn't retrace the source where I saw it.
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1
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Does peroxide spontaneously decompose when introduced into hot combustion chambers?
I understand that hydrogen peroxide (HTP) can be decomposed into superheated steam and oxygen using a catalyst, but I haven't been able to find any information on whether or not it will decompose in ...
- 814
5
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1
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If high-test peroxide is most stable when pure, why are most uses of it in rocketry at lower concentrations?
Per the Wikipedia article for High-test peroxide:
Hydrogen peroxide becomes more stable with higher peroxide content. For example, 98% hydrogen peroxide is more stable than 70% hydrogen peroxide. ...
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4
votes
1
answer
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What is the products of a catalyzed reaction between Hydrogen Peroxide and Ethanolamine with Copper(II) Chloride?
I found this article about Hypergols, specifically H2O2. It mentions in table 3 and in the body of the paper that they found that Ethanolamine with Copper Chloride reacted vigorously. In my search for ...
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2
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1
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Decomposing HTP through regenerative cooling for use in closed expander cycle
HTP or high test peroxide has a long history as a low cost and high reliability oxidiser, and has had a lot of recent attention for its pseudo hypergolic nature when passed over a catalyst bed. ...
- 814
2
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0
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Designing a catalyst for use in catalytically hypergolic fuel mixtures using nitrous oxide
The use of hydrogen peroxide with hydrocarbons such as RP1 has long been a popular choice, not least of all for its hypergolic properties when paired with a catalyst bed. This motor design, catalysing ...
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