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Local source of DCM (methylene chloride) or di-clo
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Matthieu Boardman  
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 More options Jul 13 2012, 12:13 pm
From: Matthieu Boardman <neomatropo...@gmail.com>
Date: Fri, 13 Jul 2012 12:13:12 -0400
Local: Fri, Jul 13 2012 12:13 pm
Subject: Local source of DCM (methylene chloride) or di-clo

This stuff has a wonderfully low boiling point of 103F and is used as a
paint stripper but I've been fallow.g around and nobody knows what I'm
talking about.

Names...
Dichloromethane, "di-clo", methylene chloride, DCM, CH2Cl2


 
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Mariana Cardoso  
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 More options Jul 13 2012, 4:44 pm
From: Mariana Cardoso <maria...@gmail.com>
Date: Fri, 13 Jul 2012 16:44:52 -0400
Local: Fri, Jul 13 2012 4:44 pm
Subject: Re: [NYCR:Microcontrollers] Local source of DCM (methylene chloride) or di-clo
This: http://www.mcmaster.com/#methylene-chloride/=ie4ndu ?

On Fri, Jul 13, 2012 at 12:13 PM, Matthieu Boardman


 
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Dan Lavin  
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 More options Jul 13 2012, 5:58 pm
From: Dan Lavin <dan...@verizon.net>
Date: Fri, 13 Jul 2012 17:58:29 -0400
Local: Fri, Jul 13 2012 5:58 pm
Subject: Re: [NYCR:Microcontrollers] Local source of DCM (methylene chloride) or di-clo
It is extremely dangerous.  Ordinary protective gear is ineffective.

It is the major constituent in many paint strippers.  Read and believe
the warning labels there

On 7/13/2012 12:13 PM, Matthieu Boardman wrote:


 
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R.M.Ellsworth  
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 More options Jul 14 2012, 7:15 am
From: "R.M.Ellsworth" <r.m.ellswo...@att.net>
Date: Sat, 14 Jul 2012 06:15:38 -0500
Local: Sat, Jul 14 2012 7:15 am
Subject: Re: [NYCR:Microcontrollers] Local source of DCM (methylene chloride) or di-clo

Just exactly what do you intend to do with this stuff?  Presumably  
you're involved with some aspect of dipping birds if you care about  
the low boiling point.  Here's the vapor-pressure chart:

  methylene chloride vapor pressure.png
2K Download

Keep in mind that this stuff is readily absorbed from the lungs, and  
most sources point out that toxic concentrations are below the 'smell  
threshold' - so be careful.  Carbon monoxide is a metabolite, and you  
can easily get delayed symptoms associated with elevated  
carboxyhemoglobin hours after exposure.  Do not get any on your skin;  
I find it quickly defats and causes irritation. I don't think this is  
quite as neurologically awful as something like methyl iodide, but I  
wouldn't care to find out!

Can be flammable, but within tight limits (about 14 to 24%)  Be VERY  
careful not to leave a closed container anywhere it's exposed to heat;  
you can easily build up to supercritical pressure and when you open  
the container (or it 'opens itself') a large proportion of the  
material will flash-vaporize in a manner similar to steam-boiler  
explosions... causing an instant health risk among other potential  
effects.

Not particularly difficult to come by as a chemical; it's a  
constituent in a number of plastic cements (such as Ambroid Pro-Weld)  
and, as noted, many paint strippers.  THEORETICALLY you could purify  
it from available chemical products by fractional distillation --  
don't do that unless you have ALL the right equipment and know the  
right procedures for using it.


 
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Matthieu Boardman  
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 More options Jul 24 2012, 8:41 pm
From: Matthieu Boardman <neomatropo...@gmail.com>
Date: Tue, 24 Jul 2012 20:41:27 -0400
Local: Tues, Jul 24 2012 8:41 pm
Subject: Re: Local source of DCM (methylene chloride) or di-clo

Exactly....more along the line of bubbly Xmas lights.  I think I'm just
gonna go with some Weld-it 3 from canal plastics...hopefully that's pure
enough.

On Saturday, July 14, 2012, R.M.Ellsworth <r.m.ellswo...@att.net> wrote:
> Just exactly what do you intend to do with this stuff?  Presumably you're

involved with some aspect of dipping birds if you care about the low
boiling point.  Here's the vapor-pressure chart:


--
Inspiration exists, but it has to find us working.
Pablo Picasso<http://www.brainyquote.com/quotes/quotes/p/pablopicas378943.html>

 
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