Instructables

Blue Flaming Pinecones

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Step 4: Set them on fire

Grab a blowtorch and set those pinecones on fire! In my opinion the blue ones look the best, with red and green tied for second. The purple (potassium sulfate) and white (magnesium sulfate) pinecones were a dud, and looked the same as my "control" group. But your mileage may vary. You can mix and match to make a myriad rainbow of fiery goodness.



A final safety note: It's always a good idea to have a fire extinguisher on hand when you're burning things. And don't breath the fumes from the colored flames.
 
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Denero5 years ago
Do you need a blowtorch or can you just throw them in a fire>?
zytyxx Denero3 years ago
doesn't matter, but blowtorch is better. Its hard to get a big fire that is easyu to control.
zytyxx3 years ago
thanks. this was helpful information. turns out i'm doing a science project on this too. How did you get the cupric chloride and the strontium? epsom salts don't work for me too, but the salt substitute did.
microman1717 years ago
even tho the red turned yello that is pretty awsome.. also the blue is kool aswell
Hey man, I don't know how much pyro you do, but those are commonly used in artillery shells to make the stars burn different colors.... well not sure about magnesium sulfate... never played with that much. Anyway, the point of this reply is.....

If you REALLY want your "pine cones" to burn cool, mix a solution of Potassium Nitrate and Refined sugar into alcohol and then dissolve your metal salts into that. The result will be similar to self-lighting charcoal... but with king of a glitter effect....

Potassium Nitrate (KNO3) is also known as Saltpeter, and can be commonly found in 95-98% pure form in "Stump-out" and other forms of stump rot products.

The aprox mix ratio would be in the ball park of - 60% KNO3 + 40%

IT IS AN OXIDIZER... so do not store it mixed with or in combination with metals or metal salts for any length of time (couple days) because theoretically, being an oxidizer, it can spontaneously combust if oxidation develops enough residual heat.... never actually seen it happen... but all the same...

Have fun with that... BOXHARD
Kewl a tiome bomb eh......... A steel/Iron bar in pure KNO3..... Hmmmm
No not quite that easy... KNO3 is an oxidizer... you also need a fuel. In this case that would be the O and C in the Sugar as well as the pine pitch in the pine cones...
true. Im just saying the mixture would spontaniously combust... If you lefts it in a well mixed but coarse grain and added carbon (charcoal) you would have your fuel and potential ignition source. I would like to request the rockt!! Although I would know how I'd love to learn from somebody with more experience!