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Old 11-23-2008, 09:35 PM   #1 (permalink)
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What use is an organic compound with a high melting point?

The other week in organic chemistry lab we produced Hexaphenylbenzene. This has an incredibly high melting point (454-456 °C) for an organic compound.

Which got me thinking -

What practical use is there for this compound? What would you use organic high-melting point compounds for, anyway? Is there any practical industrial use? It just seems odd to produce something for which there is no practical application.
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Old 11-23-2008, 09:47 PM   #2 (permalink)
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If it can be used to lubricate machinery, I'd like to borrow $100,000.
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Old 11-23-2008, 10:24 PM   #3 (permalink)
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Perhaps a non-brittle, non-conductive protective coating.
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Old 11-23-2008, 10:25 PM   #4 (permalink)
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Ah, yes, that seems like a good idea.
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Old 11-24-2008, 12:46 AM   #5 (permalink)
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Insulators in power stations.

Plastics you can cook in.

Light weight parts for internal comustion engines.

Components for militar applications that are radar invisible.

Erm...

I'm sure with a bit of though, I could come up with some more.
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Old 11-24-2008, 02:17 AM   #6 (permalink)
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Daniel_ remind me again why you don't make millions coming up with innovative ideas?
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Old 11-24-2008, 07:52 AM   #7 (permalink)
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Quote:
Originally Posted by genuinegirly View Post
Daniel_ remind me again why you don't make millions coming up with innovative ideas?
I have no idea. Can you sugest it to my boss?
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Old 11-24-2008, 08:38 AM   #8 (permalink)
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I'm not sure myself, but I'm pretty sure my SO should know the answer to this question. He is also taking O Chem this term, and as a chemical engineer, his focus is more on the practical applications of chemistry. I'll ask him at lunch and see what he says.
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Old 11-24-2008, 09:09 AM   #9 (permalink)
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Ooo, thanks Snowy! I'm looking forward to hearing what he has to say!

I'm thinking it has applications in nanotechnology. Was reading up on Hexa-peri-hexabenzocoronene last night, which is a Hexaphenylbenzene derivative. Hexaphenylbenzene derivatives seem to form nanotubules with little prompting, and some turn into itty bitty electrical conductors when oxidized.

I'm wondering what else it has been used for. I would think that a melting point in the high 400's would be useful all over the place, but for the life of me I can't think why. Daniel_ started my mind moving though.
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Old 11-24-2008, 09:16 AM   #10 (permalink)
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I was able to ask him a bit ago, and he said that there were so many possible uses, that asking him the question was like asking him what water could be used for. Not a very helpful answer, I'm sure, but what else can one expect from an engineering student when the term is winding down?
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Old 11-25-2008, 10:03 AM   #11 (permalink)
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Hehe. Thanks for asking, Snowy! What a fun response.
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Old 11-25-2008, 02:30 PM   #12 (permalink)
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Threadjack joke:

Q: Organic compound with high melting point.

A: Nuns and Nazis. (drum crash)
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Old 11-26-2008, 11:48 AM   #13 (permalink)
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Quote:
Originally Posted by Crompsin View Post
Threadjack joke:

Q: Organic compound with high melting point.

A: Nuns and Nazis. (drum crash)
Don't get it?
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Overhead, the Albatross hangs motionless upon the air,
And deep beneath the rolling waves,
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The Echo of a distant time
Comes willowing across the sand;
And everthing is Green and Submarine

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Old 12-01-2008, 06:55 PM   #14 (permalink)
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Doesn't have anything to do with the melting point, but derivatives of hexaphenylbenzene can be used for the emission layer in blue OLEDs. [1]
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Old 12-01-2008, 07:25 PM   #15 (permalink)
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Nanobiotechnology!
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Old 12-01-2008, 07:59 PM   #16 (permalink)
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Aha! Thanks, Nonsensical. Nifty find.
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Old 12-09-2008, 07:01 PM   #17 (permalink)
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Quote:
Originally Posted by onesnowyowl View Post
I was able to ask him a bit ago, and he said that there were so many possible uses, that asking him the question was like asking him what water could be used for. Not a very helpful answer, I'm sure, but what else can one expect from an engineering student when the term is winding down?
In other words, he didn't know...
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Old 12-12-2008, 05:02 PM   #18 (permalink)
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Does it burn, or just melt? Sounds like the latter.

I was wondering how much energy it absorbs as it melts - and whether there is a potential use in that.

I'm guessing that it's not a big transition (energy wise). But it might be at a useful point, for something?

Gee. I just looked it up on wikipedia. It's a pretty looking structure. Like a snowflake.
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Old 12-13-2008, 10:51 PM   #19 (permalink)
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Yeah, it's really pretty. Doesn't burn, just melts. Fascinating compound, really.
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