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aluminium foil thermite?

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Comments

Anonymous

Dude it's like 2am in Utah why are you up

Anonymous

You might want to be careful about claiming you can still use those pennies...it seems that it's illegal to "fraudulently alter, deface, mutilate, impair, diminish, falsify, scale, or lighten" US coins. You should be fine as long as you're using the copper personally and you aren't planning on then using the now-lightened coins, but if you were to use them it would be considered "fraudulent" because they've been lightened. <a href="https://www.quora.com/Is-it-illegal-to-destroy-a-penny" rel="nofollow noopener" target="_blank">https://www.quora.com/Is-it-illegal-to-destroy-a-penny</a>

Mark Trombley

You need to make a polished thermite ball.

Anonymous

Well It was an interesting thermite I would say aluminum foil with iron oxide and copper and sulfur.

CodysLab

dang it! there goes my plans to become a millionaire by removing copper from pennies. I'll be sure to remove that part and the pennies I have will likely go into my scrap bronze pile for later use in casting a bell.

Silviu T

Goes to show how important particle size and contact area is in chemical reactions. Try to make a flash powder with potassium chlorate and aluminum powder of 30 microns spherical particles: it won't ignite at all. Switch the aluminum powder for one of 3 micron size with flat particles: it will detonate violently.

Jasper

Maybe you can make a more compacted version of this by putting it in the vacuum chamber, and recompressing it much faster than it went vacuum, so the air doesn't go back in. That does assume the air can escape in the first place and it doesnt balloon up.. Also can scale down a bunch for testing it?

Anonymous

The aluminum melted away and the iron is in very thin layers. Both factors reduce the tendency toward burn

Bob Ogden

You can maybe thin the Al foil with your rollers to produce a better reaction?

Anonymous

Feed the whole assembly through the rolling mill to homogenize it!

Nani Isobel

Oh! Cats! Burning stuff was cool too.

Nani Isobel

Several series of rolling it through the mill and folding it would probably make it react better. Each roll and fold would increase the contact area between the rust and luminium by about double. A sequence of N roll and folds would increase the contact area 2^N. You could dial in as much as you wanted. After seeing the next video: nevermind this comment. It looks like the foil wouldn't survive many rounds. Other video is better. ++

Anonymous

Would a magnesium wick work?