Instructables

I was wondering if anyone here knows how to make liquid rocket fuel

any ideas thanks bye

dbiswas6yesterday

yup u can use oxygen tanks as oxidizers and gasoline ....it is used for amateur orbital liquid rocket engines ........atleasr I'm using it in the rocket I'm building!!!

dbiswas6yesterday

yup u can use oxygen tanks as oxidizers and gasoline ....it is used for amateur orbital liquid rocket engines ........atleasr I'm using it in the rocket I'm building!!!

spinet5 years ago
Mix Liquid oxygen and hydogen to make a very strong fuel
ampeyro spinet2 years ago
you will also need a ton of electricity
ampeyro spinet2 years ago
iquifying hho is a bad idea, it's technicaly an explosive, it's "safer" to liquify hydrogen and oxygen in two diferent tanks with two compressors
If you can tell me how to liquefy
hydrogen Ill be happy. I make about 1 Liter per minute(LPM) of DI hydrogen mon oxygen. Commonly known as HHO. Im interested in making a gas powered rocket.
Dihydrogenmonoxide is commonly known as water

L
. And you don't get monatomic Oxygen when you electrolyze (or any other process I can think of), anyway. Or was I asleep that day in Chem class? . Cool video, though.
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What do you mean by So many of you are confusing HYDRAZINE (very toxic) with Hydrogen Peroxide?
The only person (apart from you) to have mentioned hydrazine is me, and I've not confused it.

Fail to answer this and I'll assume that you're just dumping junk randomly on the site.

L
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OK you're not just posting junk - I appreciate the reply.

Where has anyone mentioned "Hydrogen MONoxide and the toxicity of Hydrogen Peroxide" on this thread (not in your previous comment)
And to reiterate my previous question (which you haven't answered):
What do you mean by So many of you are confusing HYDRAZINE (very toxic) with Hydrogen Peroxide?
The only person (apart from you) to have mentioned hydrazine is me, and I've not confused it.

L
i used to have hydrogen peroxide and theres barely any hydrogen but if you could make hydrogen gas and turnit into a liquid that would be nice
Liquefying hydrogen is not an easy or cheap job, unfortunately.

L
sadly
Wow. Chillax lemonie. A word of the wise, I don't care how smart you are, when you get incredibly defensive, people start to ask "I wonder why that guy is so defenisve...there must be a reason...hmmmm," even if there really is no reason at all. Please just relax as the answering of your question is pointless. (I know this was 2 months ago, but I thought it is advice you should consider at any time.)
I assume you changed your user? I still don't know where you were coming from with this, or why you bothered to reply to an old comment without answering the question. L
first off...what the hell would you need this for!?!?!?!?!?...wont gasoline do?????? ur at number 2 on the u.s bomb threat list arnt u??...joking lol secondly...to power space shuttles they use liquid oxygen(not too easy to obtain)
just gasoline wont do, to maximise power it must be somewhat contained and containd means minimal air, therefore gasoline wont light it needs the oxidizer. one form of liquid-like rocket feul [explained in october sky] is mixing potassium nitrate KNO3 and pure alcohol [AKA Moonshine] and this was used for small scale rockets. unfortunately my teenage ignorance hinders my knowing ratios of KNO3 and alcohol or the chemical energy stored in the final product. *sad face*
this comment is 3 years old....
And im #1... (jk)
To power space shuttles they use liquid hydrogen. To oxidize the hydrogen in a vacuum they use liquid hydrogen. And the SRBs are powered by atomized aluminum powder, which is oxidized by ammonium perchlorate with a bit of iron oxide mixed in.
nfk114 years ago
use:oil,fome peanuts,some soda and a mentos in everything and now you have liquid rocket fuel.
521934 years ago
you can use gasoline and a 50% hydrogen peroxide solution for oxidizer.  go to this web site for plans:
http://home.total.net/~launch/
fireball01e5 years ago
Hi, i have made and experimented with a couple home/workshop built liquid fuel motors. I used a system of keosene/aircraft fuel, pumped oxygen and a blast of nitro on one model. out of all 12 experiments, only one made it off the ground. The rest exploded, mainly because of the fuel sources being mounted above the engines (its a rocket, so i had no choice but to install them there). The system is fairly safe on a test stand. Im going to build another proto during april and ill get the video up. The hydrogen/liquid fuel method is very hard to make the fuel and also the engines are not very affective (and when they are, they have a tendancy to overheat causing fire/explosion). but this depends on your designs, facilities to cast the components or locate components and how much you are putting into your project. Also last word of warning; most liquid fuel engines/fuel storage is very heavy, so you must think of extra risk factors like; size, parachute, failsafes and propulsion. if one of these aspects are over looked or not followed, you could possibly cause alot of damage and possibly kill someone.
how big was the nozzle hole because too much pressure can make it explode
poop#15 years ago
their are many propellents one of them that i might use is kerosene and alchohol, hydrogen and liquid oxygen is another but i dont recommend that, the basics of liquid propellent is that their are two parts to it fist is the oxidizer wich helps ignite and combust second is the fuel wich helps that flame keep going. see alchohol is realy flammble if their is a high percentage of it , which makes it the oxidizer , next is the kerosene which can last a very long time so that makes it the fuel. you can also have a liquid oxidizer and a solid fuel(which is much safer) so now all i have to say now is be safe and goodluck
you can make h20 though electrolocis
lemonie7 years ago
Binary liquid fuels? Yes, but you'd have a job getting both liquid components, and you shouldn't try it either.
How about water rocket tech only the liquid is a flammable one, air pushes on the liquid through an atomizer which has a heat source that ignites the liquid through a nozzle . If it's not good enough then I'll think of something. Simple though, I think, no idea where to get atomizer, maybe a narrow hole will do to make a line that will ignite in a nozzle .
You could do that with a can of butane, but you wouldn't get enough thrust out of it. Chemical-fuel rockets use high energy density fuels and oxidisers. Some examples: Hydrazine hydrate (nasty) / concentrated hydrogen peroxide (dangerous) Hydrazine hydrate (nasty) / concentrated nitric acid (dangerous) Kerosene / liquid oxygen (very dangerous) Liquid hydrogen (very dangerous) / liquid oxygen (very dangerous) L
You look so much younger there/then... That's a single push rather than a sustained-burn, but a super Instructable. L
Hey man, that thing is over a year old. I should hope I look younger.
KentsOkay5 years ago
One aspect of liquid-fueled rockets I have not seen here is the immediacy of launch when using liquefied propellants. Generally, when using a liquid fuel for rockets, the vehicles cannot be stored with fuel. Additionally, most backyard rocketry hobbyists are not equipped to perform nitrogen or argon purges of their propellant tanks after test fueling their bird. The "best" liquid fuels for hobbyists are those that are relatively stable at room temperature and have reasonably high flash points. Gasoline, for example, is a much safer fuel than methyl ethyl ketone. For nozzles for liquid-fueled rockets, are generally made from less-reactive materials than solid-fueled rockets. This is because you generally want to recover and reuse liquid-fueled rockets. Liquefied gases (such as liquid oxygen) can generally be purchased by anyone over 21 from companies who specialize in LOX and dry ice. Prior to building or launching any rocket, check your local, state and federal laws regarding model rocketry.
cd415 years ago
this scared me.. Probably beecause when i looked it was under a thread about homemade explosives or it may have to do with the fact that we are almost to weird for our own good.
assasin7 years ago
ive heard mixing nail polish remover(acetone)and hydrogen peroxide does sum thing. if u guys know reply
Acetone peroxide (TCAP) is to unstable for rocket, not to mention it's something the average American shouldn't be doing. Though hydrogen peroxide and mangenese dioxide react and this is sometimes used for rocket fuel. But they use upwards of 90% hydrogen peroxide.
Heh. Back when I was a kid, and a chemistry buff, and a space nut, I made up these "plans" for a rocket that dripped peroxide on MnO2 to create the oxygen that I had read was needed. I just had no concept of the sort of mass flow involved... (Hey, we're talking like 8 years old, in 1967 or so!)
Do you by chance remember what percentage of peroxide you used?
it was a paper design; I think I planned to use ordinary drug-store (3%) peroxide. It never would have worked at all, even if I had built it. It was right up there with the solid fuel rocket I made, after being warned about fine-powder explosions by my dad ("nearly anything will burn if finely enough powdered. Grain silos explode periodically") by packing some copper pipe with powdered chalk...
Tombini assasin5 years ago
Go ahead make acetone peroxide, tell me how it goes... seriously blowing your hands off isn't fun
Bad Idea! this would EXTREMELY unstable.
the terrorists were going to use it in that plot to hyjack 11 planes a couple months ago.
Tombini5 years ago
A very common hybrid propelled rocket propellant is compressed hydrogen peroxide reacted through solid rubber or and other non-brittle fuel
wow. just reading these comments makes me think of when that guy on nitro circus 3 got hit in the head with a rocket
get concentrated rubbing alcohol and liquid oxygen, compress them in two different tanks and release and mix the two in a combustion chamber and then have a nozzle direct the gases out
remember to use check valves and flame arrestors so the gases don't mix and ignite inside the pressurized fuel tanks
if you mix the two into one single tank and expect it to work, you will die in a horrible explosion
http://science.howstuffworks.com/ez-rocket.htm
What is concentrated rubbing alcohol? IPA is IPA, surely?
And how would you source LOX?
the stuff at drug stores is only a few percent alcohol though can't you buy liquid oxygen for welding and such?
I get it with the alcohol, but you could use other fuels. Liquid oxygen boils at -183'C and as such requires specialised storage and transport: not easy to get hold of (unfortunately).
LOX is actually pretty easy to obtain. Sorta scary. Liquids can't be compressed, though, and LOX has a habit of boiling at room temperature, so it's not quite so simple. If you're interested in making rocket motors, the "next step" up from solid fuel is probably a "hybrid motor" using nitrous oxide as the oxidizer. There have even been successful "tri-bird" motors that start as a Nitrous/solid hybrid and then inject alcohol for liquid-fuel operation. Unlike lox, nitrous "self-pressurizes" to reasonable levels (~700psi)
KentsOkay7 years ago
This link ( link ) will take you to a group that has my topic on making a liqued fuel rocket
Kiteman7 years ago
Concentrated ydrogen peroxide pumped through a hot silver catalyst. It breaks down into large volumes of steam and oxygen gas:

http://science.howstuffworks.com/question159.htm

http://en.wikipedia.org/wiki/Hydrogen_peroxide

http://www.spaceuk.org/htp/htp.htm
Question for you..... I really don't want to screw around with it, I just want to further my knowledge..... How is MEK Peroxide used as a rocket fuel? I ask because of the few people I know that work with it, all of them have made a rocket fuel reference. I'm talking of concentrations in the 50-65% range (which is the same concentration used for polyester resin catalysts).
That's a resin of some sort, isn't it? A lot of modern solid fuel rockets (boosters and such) use resins as the fuel, with an oxidiser mixed into the resin while it is still liquid. That makes it easy to shape into the correct cross-section without falling out of the rocket (as powders can), and adds strength to the structure so that less weight is needed on bodywork. I've even heard of rockets using asphalt as a fuel (without the gravel).
Kiteman Kiteman7 years ago
Yoink - I've just googled it - MEKP is explosive! It would go off as soon as you started to pump it!
That's the rocket pack formula.
It's what the UK space-programme ran on as well, until the politicians pulled the funding.
I thought all the UK programs ran on lagers and ales?
:-D Don't forget tea and biscuits as well...
Aeshir Kiteman7 years ago
What about a catalyst for baking soda/vinegar? Is there such a thing?
Kiteman Kiteman7 years ago
>doh<

Concentrated Hydrogen peroxide...
jtobako7 years ago
gasoline, same as Goddard started with.
Yeah, just use gasoline. It's got a great weight/power ratio. And a gazillion times safer (but you could still get yourself killed).
Aeshir7 years ago
Zincoshine! Or Rocket Candy! Lol. From a book I read called Rocket Boys (true story, made into a movie called October Sky).
Kiteman Aeshir7 years ago
They aren't liquid fuels. Fun, though.
photozz7 years ago
I don;t know why, but reading your question made me giggle. Kinda like asking, "Does anyone know how to soak up large amounts of blood?"