What becomes of styrene passed through a flame?

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Offline DaveK

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What becomes of styrene passed through a flame?
« on: 27/04/2011 03:22:52 »
Health question here. Can anyone tell me what a styrene(monomer)if aerosolized, and passed through a flame, what it may convert to chemically? 

Any help would be appreciated 


[MOD EDIT - PLEASE FORMAT YOUR THREAD TITLES AS QUESTIONS. THANKS. CHRIS]
« Last Edit: 27/04/2011 08:06:35 by chris »

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Offline chris

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What becomes of styrene passed through a flame?
« Reply #1 on: 27/04/2011 08:08:09 »
Assuming the styrene soaks up enough energy from the flame to initiate a reaction, I would suggest that it will burn to CO2 and water by reacting with oxygen from the air.

Chris
I never forget a face, but in your case I'll make an exception - Groucho Marx

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Offline Geezer

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What becomes of styrene passed through a flame?
« Reply #2 on: 28/04/2011 08:30:30 »
I'd agree with Chris. I also suspect, if it's anything like the polymer form, you can expect to see a plenty of soot and generate some strange aromatics.

I gained extensive experience in this field some years ago by "flying" the flaming wrecks of plastic model aircraft out my bedroom window into the sand pit in the back garden. 
There ain'ta no sanity clause, and there ain'ta no centrifugal force Šther.

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Offline chris

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What becomes of styrene passed through a flame?
« Reply #3 on: 29/04/2011 09:26:10 »
- He does say monomer, so the combustion might be expected to be more complete thank for the polymer (agree whole-heartedly on the sooty smoke for that!).

c
I never forget a face, but in your case I'll make an exception - Groucho Marx

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Offline Bored chemist

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What becomes of styrene passed through a flame?
« Reply #4 on: 29/04/2011 18:39:20 »
One of the characteristics of unsaturated hydrocarbons is that they burn with sooty flames. Styrene is very unsaturated so it will be very sooty.

Incidentally,
RIP Poly Styrene.
http://www.bbc.co.uk/news/entertainment-arts-13193968
if there's a cremation we might find out.
Please disregard all previous signatures.

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Offline CliffordK

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What becomes of styrene passed through a flame?
« Reply #5 on: 30/04/2011 08:32:34 »
One of the characteristics of unsaturated hydrocarbons is that they burn with sooty flames. Styrene is very unsaturated so it will be very sooty.
Acetylene is also unsaturated.

You get soot in open air.
You get good combustion with concentrated oxygen, or perhaps forced air. 

An option for clean hydrocarbon burning might be the intentional formation of coke which can be filtered out and disposed of.

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Offline chris

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What becomes of styrene passed through a flame?
« Reply #6 on: 01/05/2011 12:20:38 »
I never forget a face, but in your case I'll make an exception - Groucho Marx