Re: ATM Gluing Lexan

["Ernest S. Tomlinson" <etomlins@k-online.com>]

At 07:44 PM 11/11/98 -0600, you wrote:

>Yes, that's what's commonly called methylene chloride, and NOT
>chloroform (which is what the term "methyl chloride" actually means to
>any professional chemist).  I saw the name "methyl chloride" while I was
>taking introductory organic chemistry in 1957, but didn't hear or see it
>again I saw it posted here.

"Methyl chloride" is just that, methyl chloride, MeCl or CH3Cl.  ("Chloro-
methane" to use the accepted notation--for which I understand the need, but
I prefer the older names.)  Chloroform is trichloromethane, CHCl3.
Methylene chloride is CH2Cl2.

Methyl chloride is a gas at room temperature so I doubt that it's possible
to clean anything with it :)  Methylene chloride is not especially toxic
or dangerous; for a long time it was used for decaffeination of coffee,
being a particularly good solvent for caffeine.  But, well, it's one of
those nasssssty chlorinated organics.  God knows what ineffective
substitute they use these days.

-tomlinson