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Smoke Bombs Answered

Alright I'm a dude who lives in the middle of nowhere...USA...i need some household chemicals to make an awesome smoke bomb. please help..!


i need this i live in australia and i heard if you put the stuff indide a pingpong ball it amplifies the effects, is this true?

EASY and way simple !!!!
    1.get potassium nitrate (which is stump remover).
    2. get sugar
    3.mix with the ratio,     6/8 : potassium nitrate/ sugar (it is very important that you do i t by by volume not weight!!!!!!!).
    4.mix thoroughly.
    5.get desired amount then light and enjoy!!!!!!!!!!!!!!!!!!!!!!!!!!!

this is the easier way. put a paintball in foil and put a fuse in it and throw it

the best smokebomb recipe I know 2 parts citric acid (not real but the flavorig called citric acid) 3parts KNO3, put it in a pan add few drops of water to get it damp and cook on low heat it till water evaporate about 10min stir all the time

look up stump remover and and suger i tried it and it works like crazy.

The main ingredient (and sometimes the only ingredient) in most older stump removers is Potassium Nitrate (KNO3).

i plan on like inventing a game where i can use a smoke bomb to escape my persuers, along with other gadgets, and i'd like to know chaoscampbell, is there a way i could use it in the woods? like maybe some sort of shell to contain the flames...

Paintball in the woods with smoke bombs. Sounds idyllic. Borax and water makes a good flame retardant coating, but there's no way to fully conceal a flame and still have the bomb work. Fire needs continuous oxygen and all that. Day after rain maybe.

Not to be contradictory, but as I understand it the potassium nitrate is the oxidizer for the sugar fuel in this instance. Any flame proof container with a hole large enough for the smoke to escape will work.

Also, assuming the container is able to maintain a positive pressure in relative relation to its surrounding or an equillibrium, the reaction would even work underwater, or in outer space.

Mrfishy, remember not to litter please.

wow, it's been forever since i was on here. trashed my game idea. it was a lot more complicated than i thought it would be. however, i still want to use this recipe in the woods for airsoft. (planning to get a 450 fps sniper rifle). i figure i could use the recipe, and work a long fuse into it, and a plastic or metal tube around that, so from above it would look something like this, ()= tube *= fuse, (*)
then i would seal the rest of it of with foil or something so that only the fuse, and tube are exposed to the air. then i can light the fuse, cook it off for a little while, and throw it. Would this work?

mrfishy, I am actually in the process of designing a device that does exactly what you have been talking about (not you design, the concept of being able to throw it anywhere and not worry about fire consequences. I after i come up with a design that fits my standards, I will give you a buzz and give you the plans.

and Matsojr22, both of your comments are accurate and good job of explaining it simply!

hmm i don't think it would work under water as the potassium nitrate should be relatively dry to work and the water may be able to cool it down too fast and the reaction would stop

Not to be contradictory again, but you might have misread my comment.

"Also, assuming the container is able to maintain a positive pressure in relative relation to its surrounding or an equillibrium, the reaction would even work underwater, or in outer space."

Elementary physics.

Of course you are correct if the pressure drops into the negative, water would flood the container and stop the reaction.

darn, spose ur right, but it's k, im making a ghillie ROBE thing, for layin in the dirt

- sugar (sucrose or table sugar)
- potassium nitrate, KNO3, also known as saltpeter (you can find this at some garden supply stores in the fertilizer section, some pharmacies carry it too)
- skillet or pan
- aluminum foil

1. Pour about 3 parts potassium nitrate to 2 parts sugar into the skillet (5:3 ratio is also good). Measurements don't need to be exact, but you want more KNO3 than sugar. For example, you can use 1-1/2 cups KNO3 and 1 cup sugar. If you use equal amounts of KNO3 and sugar, your smoke bomb will be harder to light and will burn more slowly. As you approach the 5:3 KNO3:sugar ratio, you get a smoke bomb that burns more quickly.

2. Apply low heat to the pan. Stir the mixture with a spoon using long strokes. If you see the grains of sugar starting to melt along the edges where you are stirring, remove the pan from the heat and reduce the temperature before continuing.

3. Basically you are carmelizing sugar. The mixture will melt and become a caramel or chocolate color.
Continue heating/stirring until the ingredients are liquefied. Remove from heat.

4. Pour the liquid onto a piece of foil. You can pour a smaller amount onto a separate piece, to test the batch. You can pour the smoke bomb into any shape, onto an object, or into a mold. The shape and size will affect the burning pattern.

5. If you aren't going to clean your skillet immediately, pour hot water into the pan to dissolve the sugar (or else it will be harder to clean). Clean up any residue you may have spilled out of the pan, unless you want mini-smoke bombs on your stovetop.

6. Allow the smoke bomb to cool, then you can peel it off the foil.

The solid smoke bomb material is flammable and can be lit directly. You can light your smoke bomb using a lighter, preferably one of the long-handled types used for barbeque grills. Only light your smoke bomb in a well-ventilated area, on a surface that won't catch fire. The smoke bomb will burn vigorously (more slowly with a higher percentage of sugar) with a purple flame.
Alternatively, you could place a short length of wick into the smoke bomb when you pour it, and then light the wick.

-** copy and pasted from http://chemistry.about.com/od/demonstrationsexperiments/ss/smokebomb.htm

i experimented a year ago a little with smokebombs and found that flour + KNO3 works also very well but you shouldn't try to melt it... add water and let dry

I have also heard that adding baking powder will allow for a more controlled burn and add more smoke

While purchasing Nitric Acid may be legal in your state or territory, inside the US all purchases are tracked for anti-terrorism purposes.

*** WARNING *** Be extremely careful while making this that it doesn't catch fire or you could be severley burnt. A Friend of mine was severely burnt doing this and he's a professional pyro and had done it dozens of times before. Don't use a gas stove to heat it, use an electric element and use a low heat and go gently just until the sugar has melted and it can be poured. This stuff burns well enough when it is cold and solidified. It burns much more vigorouly when it is a hot molten liquid or a mixture of dry powdered ingredients.

you can make a smokebomb from sugar and kno3. you can buy kno3 as fertilizer