Make "Sterno" Flaming Jelly From Antacid, Vinegar and Alcohol





Introduction: Make "Sterno" Flaming Jelly From Antacid, Vinegar and Alcohol

About: NurdRage is a dedicate group of science nerds trying to further amateur science with direct how-to instructions in video format. We saw what was already online and we thought "we could do better".....

How to Make Flaming Jelly from Antacid, Vinegar and Alcohol.

Useful for camping, pyro, fondue and just setting stuff on fire in general.

First, get one of those antacids that have equal or greater than 1000mg of calcium carbonate per tablet. Crush the tablets into a powder. Then simply add 10-20mL of vinegar and stir. Let the mixture dry out until it becomes less than 5ml per tablet of volume. But keep it as a liquid slurry, if it dries out too much add some water. Once you have your slurry add it to rubbing alcohol in small amounts and stir until it becomes a jelly. Then scoop it out and light it up!

Exactly how much slurry you need depends on the particular antacid you choose. So just experiment until you get the right mixture. If you add too much slurry the mixture will liquify again. So trial and error are your best bets.

The tablets must have more than 1000mg of calcium carbonate, if its less then the reaction probably wont work.

We use 99% rubbing alcohol (isopropanol) because it is cheap and anyone can get it. Lesser pecentages might work, but we haven't tried them.

Ethanol (95%) works better but not everyone can get their hands on that.

What's happening is that you're creating calcium acetate from the calcium carbonate in the antacid and the acetic acid in the vinegar. Calcium acetate causes alcohols to gel. So with these two subtances you can get rubbing alcohol to gel. But because antacid has sugars and fillers the gel won't be as good as gel made from pure calcium acetate. If you can get your hands on pure calcium acetate then go with that instead.

You can purify calcium acetate from the above mixture by simply filtering out the slurry before you dry it. The calcium acetate will be in the filtrate (the liquid part) along with any soluble fillers like sugar. But it will be purer than before. Just let it evaporate down normally and this concentrated calcium acetate solution will be more effective at creating the jelly.

Don't play with fire if you don't know what you're doing.

Thanks for watching!

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    31 Discussions

    nice post!!...this another way to make use methanol n n easy way ...

    Great video, would be perfect to put some in your camp bag for an emergency fire starter.

    hey nice ible!!
    i would like to know if i can replace the antacid tablets with other
    sources of calcium carbonate such as egg shells or chalk or even
    sea shells!

    reply fast

    1 reply

    An even better source might be agricultural lime - as in the kind you spread on your lawn. The principal ingredient in said lime is limestone - aka calcium carbnate.

    Denatured alcohol is cheap and readily available by the gallon at any hardware store. Isopropyl rubbing alcohol should never be burned because it produces a poisonous gas!!!!

    2 replies

    isn't chalk made from calcium carbonate? would that work? then you might not get the same amount of sugar, etc.

    5 replies

    Some chalk is, but some chalk sold in stores isn't. Because of this uncertainty we didn't include it in the video. But if you got stuff you were certain was calcium carbonate then go for it,. It will work better than antacid.

    By mixing antacid and vinegar, you should get the same result as vinegar and baking soda; you may not need antacid or chalk.

    No you don't get the same result baking soda and vinegar produces sodium acetate, what we want is calcium acetate which is responsible for the gelling effect. You cannot use sodium acetate. Therefore you MUST use a source of calcium carbonate, which is antacid or chalk, (or even egg shells but you'd need a lot of shells...)

    I would like for everyone to go and take a look at this link. It has the correct way to make "gelled fueled" listed, along with how to make your own "gelled fuel" camp stove. Here is the link and enjoy:

    If one had pure calcium carbonate could they just use that?

    hehehe, finally something I can do at home! Flaming jelly sounds fun anyway

    along the lines of molotov cocktails ...would adding a bit of motor oil to this gel help its efficiency or shelf life possibly? "A Molotov cocktail consists of a glass bottle partly filled with flammable liquid, typically gasoline. When gasoline is used as the main ingredient, motor oil or sugar is commonly added to help the gasoline cling to the target." (a little sugar doesnt sound all that bad either.

    thats cool but could you store it for future use? i know alchohol evaporates kinda fast.

    1 reply

    I don't see why not as long as you use an air-tight container. Sterno afterall is stored in tin cans. However i'm not absolutely certain it will work. This method produces gel that isn't as pure as sterno. Give it a shot and let me know how it turns out.