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Easy-to-make colored smoke bombs


Ubehage

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I just found this recipe and video on YouTube. I haven't tested it out myself yet, but to my best knowledge it seems to be legit.

 

Composition Type: Colored smoke.

Creator: Unknown.

Composition:

50% KNO3

40% Sugar

10% Baking Soda (Sodium Bicarbonate)

4 pcs Colored Crayons

 

Precautions/Incompatibilities:

None known. This composition is very stable, and will not ignite by static or friction in moderate amounts.

Please note, that when heating the composition on a pan, there is a slight risk of over-heating, which may lead to accidental ignition. Keep moving the composition, when it's on the heat!

 

Procedure/Preparation:

Mix the KNO3, Sugar and Baking Soda. Shaking in a tub will work just fine.

Melt the crayons on a low-heated pan. Mix in the KNO3/Sugar composition, and stir well.

There is no need for melting the sugar. Just mix it well with the melted crayons.

 

Put the composition in a small tube, and light with Visco.

 

Here's a video:

https://www.youtube.com/watch?v=1I2SuS2Z1JM

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I'm just a bit skeptical here. I think someone would have figured this out a long time ago. I could be wrong though. Let us know how your testing goes!

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Also, without a nozzle there will be flames with this composition. Those will destroy any dye and prevent colored smoke. That and a lot of other things that aren't possible make this a fake vid.

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The video is fake. Here is a true video, aboug what you can create with crayons:

 

You see where god, how he gets color for one second, then the color drops, because the comp heats up.

 

The one in your video is having brilliant colors, from non brilliant crayons ;-). Never going to happen. Also they steady burn is not of of kno3 / wax smoke.

Next point classic chlorate smokes need 30-50% dye. A crayon contains maybe 2-5% actual dye, not enough for a saturated color.

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sure is nice color, too bad it is a fake.

 

memo

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  • 1 year later...
schroedinger, if one we're to use perchlorate instead? Additionally, do we know what compound is used to make the dye? Side thought perhaps a nitrate/sugar compound could still be used with the addition of a chlorine donar, say Saran or pvc?
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You want less heat, not more, switching to perchlorate alone wont do anything useful. Also, as indicated schroedinger, there is only 2-5, and in really exclusive stuff, perhaps 10% pigment in crayons. You want 35-50% dye. The organic dye in question is different from the solid pigment used in crayons, which make me shocked he clip above got even a little colored smoke. And lastly, a chlorine doner works when you want to promote a certain wavelength in the fire it self, it wont do anything at all, for smoke colors. Well, enough of it and the smoke might turn black i suppose...

 

Colored smoke isn't a secret. Wikipedia lists a bunch of once commonly, and still used dyes. You create enough heat to make the dye boil, and vaporize. When it hits the cool air it condensates to tiny droplets and you see the colored smoke. If your fire is to hot, it simply breaks down and burns the dye in the process.

So they use chlorate and lactose for the fire, and tame it with bicarbonate, and so on.

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