Things you might never need to know.

Besides mineral spirits, the most commonl solvent used by DIY'ers is probably either lacquer thinner (which is mostly toluene) or acetone. But, there are so many other solvents in a paint store that one has to wonder sometimes what they are.
For example, what the heck is MEK?
MEK stands for Methyl Ethyl Ketone, and it's acetone's closest living relative in the paint store.
There is a class of chemicals called "ketones", pronounced "key tones". All ketones have the general formula:
A | C=O | B
Where C=O is a carbon atom double bonded to an oxygen atom, and A and B can be anything.
If both A and B are methyl groups (-CH3), then the chemical is called "di methyl ketone", or "acetone" by most people's lips.
If A is a methyl group (-CH3) and B is an ethyl group (-CH2-CH3), then it's called methyl ethyl ketone, or MEK for short.
And if you happen to be stoned, if A is the ethyl group and B is the methyl group, it's still MEK.
So, acetone and MEK are very close chemical cousins. If you find that acetone works in the way you want, but evaporates too fast, then switch to MEK. MEK should dissolve everything that acetone does, but evaporates much slower giving you more time to work.
--
nestork

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nestork, while using a completely useless subject line, wrote:

I find that nitromethane works better at disolving super glue (cyanoacrylate) than acetone, or MEK.
You can buy nitromethane from Sigma / Aldrich, or go to a hobby shop and buy some model airplane fuel (sometimes called "glow fuel") which can contain up to 30% nitromethane, but in some areas or countries could actually contain no nitromethane.
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On Friday, April 4, 2014 8:57:49 PM UTC-4, nestork wrote:

You may have noticed that the C=O in the middle is carbon monoxide. It's very unstable and wants to form bonds, as in the ketones, which is why it's dangerous.
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HomeGu y;3219293 Wrote: >

> and

Here's a company in Charlotte Hall, Maryland selling 100% pure nitromethane for $49 ($US) per US gallon. Apparantly, it's also used as an additive in car racing fuels, or as the fuel itself in dragsters.
'klotzwarehouse, Synthetic lubricants warehouse, Racing oil, Fuels & Lube' (http://www.klotzwarehouse.com /)
--
nestork


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