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Topic: Paper shines after burning  (Read 1770 times)

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Offline Xenonman

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Paper shines after burning
« on: May 05, 2014, 11:09:50 AM »
Hey all

I had a bit of spare time in a lab a while ago and I placed a piece of paper in the flame of a burner. Not sure why. The paper flexed a bit, as it usually does, then it turned black, and it started to shine. A white light.

It reminded me of the emission spectra of metals in salts, but this is not really a salt. Why did the former paper shine? It took little time to start shining, about 40 seconds. but remained shining for about 5 minutes, after which I removed the piece from the flame. It kept shining for a few seconds after.

I took a picture. It looks way better in real life, I promise.

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Offline Borek

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Re: Paper shines after burning
« Reply #1 on: May 05, 2014, 12:35:43 PM »
Paper is not just cellulose.
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Offline Arkcon

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Re: Paper shines after burning
« Reply #2 on: May 05, 2014, 01:05:36 PM »
I believe you've seen the incandescent glow of oxidizing carbon.  I don't really know why it happens, although I suppose the topic is fairly well studied.  See what you can find out along those lines.
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