If you have read some of my other Instructables you know that a lot of them require oxygen either from the surrounding air or from an oxidizer. Potassium Nitrate is the most common and easily obtainable but, for those of you who, for whatever reason can't obtain it can make your own from hydrogen peroxide.

Step 1: Gethering Materials

For materials you will need four things:

1. Hydrogen Peroxide (The Kind Diluted In Water)
2. A small glass or plastic cup.
3. Soluble salt (I used Morton's)
4. A small amount of your time.

Step 2: Distillation

The First and only step is to pour about one teaspoon of salt into you cup. Next pour three teaspoons of Hydrogen Peroxide on top of it. This mixture can be enlarged but remember to keep the solution at a ratio of 1:4. 1 being the salt and 4 being the Hydrogen Peroxide. After you have added all ingredients stir them together inside the cup. After all or most of the salt is dissolved let your solution sit until you see two layers in the liquid. These will be the salt water and the Hydrogen Peroxide separating. I am pretty sure the top one will be the Hydrogen Peroxide and the bottom one will be the salt water. Comment at the bottom to tell me what you find. I would also like to know what use you have found for it.

Have fun and enjoy!

a different method is to simply boil out the water in the Hydrogen peroxide solution. Same result - just faster and less wasteful on the salt. I prefer to use my salt on french fries and the like... Otherwise great -ible and keep up the good work. And invest in a hot plate, THEY'RE WONDERFUL!
<p>be carefull bro cause the boiling point of h2o2 is only 150 c, only 50 more than water so while boiling out water you may boil h202 and the vapour form is explosive (carefull)</p>
If you're going to do this be very very careful not to boil off the peroxide because peroxide gas is highly explosive.
I don't think recon506 was correct. Hydrogen peroxide is not very stable. Household stuff *should* be refrigerated but doesn't really need to be at the mere 3-6% it is. Lab grade stuff is 30% but needs to be in the fridge or it becomes 10%. So by boiling it the peroxide will probably break down.<br><br>Not sure that recon506 really was correct in assuming you could distill it this way. <br><br>I think peroxide gas is very explosive because it's a strong oxidizer and/or degrades into 02 and h20, where pure O2 is an oxidizer as well.
if you put a bag over it while boiling it do you think you could get a condensed peroxide gas?
No. There is no such thing as condensed gas. Gas turning to liquid is condensation. A gas condensing, means it turns to liquid. So boiling condensed gas is even more of a confusing oxymoron. What's a more useful answer is that when you boil it you boil both water and hydrogenperoxide. And since they suggested boiling as a method, I assume that hyrogenperoxide isn't very volatile and the vapors boiling gives off are mostly those of water.
steam/vapour but not a distinguishable liquid.
The only way to boil H2O2 without it decomposing is to use vacuum. Your assumption is wrong. Take a couple of semesters of college chemistry or read some books, not the drivel here.
no, everyone listen up, hydrogen peroxide decomposes in the presence of energy, aka heat or sunlight, if you heat it up it will decompose into oxygen and water, you cannot make peroxide gas by boiling it away , because boing it with destroy it. <br> <br>also that is true it does boil at 150c, but it would decompose under normal conditions before ever reaching that tempurature so you would get peroxide gas, just not alot, , and not nearly enough to condense into a usable liquid
<p>You could get 30% with ammonium bisulfate electrolysis, then hydrolysis and distillation.</p>
This topic is an insult to chemists everywhere. Give me physical evidence that hydrogen peroxide *can* be salted out, and I'll give you a full apology. Until then, my mixture of saltwater and hydrogen peroxide remains a fully miscible mixture of saltwater and hydrogen peroxide. <br> <br>Meanwhile, back to freeze distilling, like a regular person.
<p>I'm not the guy your asking, but I will give it a try, If it burns well in my gas engine, I will let you know. (answering because you posted you comment over a year ago) According to a documentary on Hydrogen peroxide, it should burn in a gasoline engine, (high consentrate hydrogen peroxide)</p>
<p>You are absolutely right about this. Also, plastic cup? At high concentrations of H2O2 a lot of things catch fire on contact, so even if this process worked (it doesn't), there are huge safety issues not discussed at all.</p><p>That said, I agree; total hoax. You need to use an actual distillation process.</p>
<p>What is the consentration (%)?</p>
I'm at a loss with chem but theoretically you could use electrolisys to pull this off right ?
liquid Hydrogen Peroxide makes a wonderful rocket fuel. no need for an oxidizer tank for the Hydrogen Peroxide contains both the oxidizer and the fuel (hydrogen as the fuel, oxygen as the oxidizer)
When H2O2 is used as a MONOPROPELLANT, there is no fuel nor oxidizer. The compound is broken down by catalytic action of a silver screen, evolving O2 and H2O and generating heat. The Bell rocket belt uses this method for relatively safe rocket thrust close to the body of the operator. The exhaust temperature and composition are safer than most other reactions would produce. The downside is a lack of specific impulse, because the reaction is relatively tame.
I'd like to know if this fellow is still alive. <br>jpoopdog is confusing &quot;I got away with it&quot; with &quot;it must be safe, because I got away with it&quot;. <br> <br>Just for completeness, lead poisoning is generally an accumulate heavy metal poison. As such, it rarely kills immediately, unless of course the lead is provided as a soluble salt. The symptoms of lead poisoning are often found in cognitive dysfunction (children who ate lead based paint don't do so well in school). <br> <br>I'm all for supporting inquisitive thought but draw the line when it puts the individual at serious risk of harm (including death). What fascinates me is that in today's climate of terror threats, much of what jpoopdog has admitted to would be considered a felony. <br> <br>BTW, I'm saying this from the perspective of someone who has been both a chemist (doctoral program in physical chemistry many, many years ago) and a medical doctor. Many of the things I &quot;got away with&quot; as a high school student were never safe. I just &quot;got away with it&quot;. No one was seriously hurt (although a friend has a keloid scar on his knee from a conc nitric acid bottle that he grabbed by the glass stopper and poured on himself. Bad luck - but it was MY bottle of conc acid. <br> <br>Do you self a favor before it is too late. Stay away from energetic compounds (explosives and propellants) until you have formally studied them. Chemistry is a great field to study - I know - I did it for many years but you don't want to hurt yourself or others. <br> <br>Much of what you have said in these posts will hurt someone. Waynesl gave you some good advice. If you're still alive (and not in jail), head it. <br> <br>Good luck, <br>nitrous
So, how do you make a rocket then?
wrong. The reaction of decomposing H2O2 is 2 H2O2 > 2 H2O + O2 + heat. This is not a Redox Reaction. However the O2 can then be used as a oxidizer. For instance a common liquid fuel rocket engine is to pass high concentrated H2O2 over a silver screen (catalyst to decompose the H2O2) into the combustion chamber and add kerosene to it. The heat of the decomposition is enough to cause the kerosene to burn with the O2 created. However the decomposition of the H2O2 would produce a thrust on its own given that it is going from a liquid to a gas and being heat to produce a pressure.
Hydrogen Peroxide works as a stand alone fuel. Old torpedoes used h2o2 solely as a fuel (with a copper pellet as a catalyst to separate it into it's component gasses), complications of which caused the sinking of several subs. They're even still in use on modern satellites to control their orientation, because it's easy to precisely control the thrust.
yes that is true. I already said it would work by itself. see last sentence from above. I was merely pointing out that it is not a Redox Reaction as rocketguitarguy had stated but was instead a decomposition.
so can i use this to make black powder?
use very pure h202 instead if kno3. use too much and it will oxidize on contact with the charcoal and sulfure, not enough and you end up with a wet black mess. it can be ignited by catalycticaly decomposing the &quot;wet powder&quot; , in an exothermic, but fast reaction, its only realu use though would be for a very quick production rocket fuel, nothing else, its why people dotn use it, its too hazardous, plus not many people would do it anyway as pure h2o2 is hard to come by
First of all, recipe for disaster. Second, where you gonna get very pure h2o2? Third, it won't even work.
trolling dude, trolling. i was like 14 at the time
Lol, take care with your trolling. Some idiot will take it seriously, and try it.
anyone listening to this should know it would never work unless the carbon and sulfur used was atomized and at leat 99.995% (LR grade) pure. otherwise it would oxidize on contact. anyways it wouldnt work. rockets i have checked use parrafin and some agent to help decompose water as the H&sup2;O&sup2; decomposes .
Be severely careful. The reason why H2O2 is normally in a 3% volume is because it is highly reactive. in chemistry labs we only use a max of 10%. everything above 30% is highly touch reactive and very dangerous
In general, chemistry labs use 30%.
None of this answer the question of which is water and h2o2 and I wana know too so Plc answer<br>
So,Is this a solid oxidizer as in could you mix it with sugar and shoot a rocket off?Really want to know because i am having trouble finding potassium nitrate.
no. it will not work. H2O2 is a liquid at STP.<br>Buy KNO3 from pharmacy as a diuretic. When cooking with sugar, use Al electric skillet to avoid ignition. Also be prepared for large quantity of thick white smoke from exhaust.
Most of the people commenting here need to lay off the tinkering and confabulating until they've studied some real chemistry texts and learned the principles and calculations and methods, before they get hurt. <br>About 25% of these comments are spot-on, though wasted as pearls before swine. Another 25% are pure nonsense, and the last 50% or so are poorly-formed arguments in the right general direction but not effective. I've been building pyrotechnics and propellants for 50 years, and the nature of much of this drivel causes me to fear for the safety of the experimenters and their neighborhoods. I hope not to dampen your enthusiasm, but to direct you toward serious, effective study of this wonderful subject. It IS rocket science, but everything you've discussed here was settled and published before any of us were born. The method of concentrating posited in the instructible will actually work, but is very ineffective. The product is only slightly more concentrated than the source material, and contaminated with Sodium, Chlorine and Iodine. An interesting and harmless experiment producing a small but detectable change- suitable for an instructable, but NOT for munitions or propellants, as many readers supposed. When professional chemical engineers like http://www.peroxidepropulsion.com/ get involved, high concentration H2O2 is made by reduced-pressure fractional distillation in dedicated glass apparatus, or by freeze crystallization. There is a detailed discussion at: http://www.rsc.org/ebooks/archive/free/BK9780854045365/BK9780854045365-00001.pdf <br>If you really want to brew your own, and have a vacuum pump and can blow glass, then see the attached diagram of the temperature gradients you'll need to dance around for crystallization. Below 62% water freezes before hydrogen peroxide, but after 62% hydrogen peroxide freezes before water. So quite high concentrations can be achieved if you freeze it to 62%, throw out the ice and then freeze it again, this time keeping the ice which is now relatively pure hydrogen peroxide. Of course, The freezing points are just too close between 55% and 65% to be able to cross the barrier without massive losses. <br>Therefore one would Freeze concentrate, removing water ice until concentration reached a suitable 50ish% and then evap to 70ish% and then freeze concentrate collecting H.perox.Ice until 90+% and then distill till ya get the really scary stuff. By the time you get that process rolling, your buddy can have the silver-catalyst jet pack built, and it will be a wild ride home!
exactly right i am a pyro and beleav that u cannot have fun without work wether calculations or preperation
hello , I have been reading all of your in puts and though I am not exstreamly educated in the field you are talking about. I have read exstensively on hydrogen peroxide rockets. hydrogen peroxidde can be purchased at 35% food grade buy the gallons and then have a much higher base to start your process with. I personally feal the the freezing method is the safest method to use and im in the process for learning as much about this method as i can to produce 85% to 90% peroxide for rockets. I have however found 85% to 90% peroxide for sale on line as well but I, unsure if its legal to purchase in the united states.
Once you have odtained the concentrated H2O2, what kind of container can it be safely kept-in?
This is a pretty convenient method to concentrate h202, but I'm thinking cold distillation would be a better bet if purity is a concern, like if your h202 is an ingredient in any pyrotechnics. For example I'm trying to build a <a href="http://en.wikipedia.org/wiki/Explosively_pumped_flux_compression_generator">Flux Compression Gen</a> (a <a href="http://en.wikipedia.org/wiki/Explosively_pumped_flux_compression_generator#Helical_generators">MK-2</a>, actually), and the explosive it calls for becomes extremely unstable with any impurities.<br>
Ok I did the boiling method. I wound up with a small amount of light blue slightly viscous fluid which I believe no be pure or nearly pure hydrogen peroxide.
Did you boil it in glass or metal? Metal pots won't work, it'll catalyze the breakdown of the peroxide. Use very clean glass if you haven't tried that already.
Yeah i did it in metal. After I had it for a day or 2 I tried pouring it on a pinecone and lighting it and nothing happened. I'm not sure why it was blue and syrupy, it must have been a copper compound in water that I had.
That's...not the best way of testing how high-test H2O2 is. A better way would be to mix a fixed volume of H2O2 with something that'll break it down, either manganese dioxide, a bit of raw potato, or mashed cow liver (catalse enzyle), put this in a bottle with a balloon or gas catch to measure the volume of oxygen produced. Then compare to regular 3%.
Have you done that? I have some low quality MnO2 that I could use, so I could try to boil down a bottle of 3% in a pyrex bowl and test it with your method to see of it worked. I kindof think iit would decompose and would just be left with water though. <br> <br>Do you know how to synthesize H2O2 from scratch? I've heard it can be made by shining ultraviolet light on water, and I've wanted to make a Nitrogen laser anyway...
Yeast works very well.
Yeast? So you just put some yeast and sugar into water? I can do that. What concentration can you get?
I mean H2O2 reacts very strongly with yeast.
A couple of things.<br> <br> First the hydrogen peroxide you get at the drug store is 3% concentration so the most you could conceivably get out of that one-quart container would about half an ounce. That's at 100% concentration.<br> <br> I kind of doubt you'd get 100% concentration but anything beyond 40% concentration is considered &quot;high concentration&quot; hydrogen peroxide and it's pretty ugly stuff.<br> <br> That brings me to point two which is high-strength hydrogen peroxide isn't something to mess with. It decomposes easily and since one of the things that it generates when it decomposes is heat it turns out heat accelerates decomposition. Another one of HSHP unpleasant qualities is that it's pretty reactive. It will, for instance, react with organic materials like what people are made of.<br> <br> The stuff will react with skin making skin flammable and even explosive. Other organics like clothing can burst into flames or explode.<br> <br> The Germans called it &quot;T-stoff&quot; during World War II and used it in rockets but it was nasty stuff to work with - http://en.wikipedia.org/wiki/T-Stoff<br> <br> Here's the Wikipedia article with the link to the area on safety - http://en.wikipedia.org/wiki/Hydrogen_peroxide#Safety<br>
so what is the actual ratio-- I find it a bit confusing, or maybe I misread it... you say the ratio is 1:4 salt to H2O2, but you only put three tablespoons of H202 in. so wouldn't the ratio be 1:3?? I realize the salt concentration would be 1 in 4, and the HP concentration would be 3 in 4, but I'm sure the ratio would be 1:3. the only reason I ask to clarify is because you said to 'make sure you keep the same ratio'.... thanks for the clarity.
&nbsp;I think that he means 1:4 as is 1 part salt to the entire mixture. as in there are 4 total parts and only 1 of them is salt.

About This Instructable




More by spencer012:Distill Hydrogen Peroxide 
Add instructable to: