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DCM, is paint stripper safe? Options
 
ThirdEyeVision
#1 Posted : 2/23/2010 2:34:38 AM

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Where can someone find decent DCM? All my friend has found is Klean Strip "KS-3 Premium Stripper". MSDS reads
DCM: 60-100%
Methanol: 7-13%
Stoddard Solvent (mineral spirits, aliphatic petroleum distillates, white spirits): 1-5%

I know I can remove the methanol by mixing with water. Can I remove the stoddard solvent by distilation? DCM boils at 104f and SS at 300f +

Would it be safe to use after a water cleaning then distillation?
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soulfood
#2 Posted : 2/23/2010 2:57:41 AM

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Just a distilation should do the trick. It would be pretty much ok to use as is, but all paint products with mainly DCM I've come across have this horrible rubbery stabilizer stuff in them, even though it;s never listed on the container.
 
dtabbler
#3 Posted : 2/23/2010 4:50:08 AM

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look through this. might help to ID any unknowns in the mentioned solvent.

https://dmt-nexus.me/forum/default.aspx?g=posts&t=8080
Who's this SWIM person and when do I get to meet them? They sound friken cool!
 
ThirdEyeVision
#4 Posted : 2/23/2010 4:55:29 AM

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soulfood wrote:
Just a distilation should do the trick. It would be pretty much ok to use as is, but all paint products with mainly DCM I've come across have this horrible rubbery stabilizer stuff in them, even though it;s never listed on the container.


I thought it felt thick. So theoreticaly would one distill until it stopped boiling at that temp meaning the DCM is all distilled out? Then discard what is left. You said a water cleaning to remove methanol isn't needed if distilled? Good to know. Thanks
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ThirdEyeVision
#5 Posted : 2/23/2010 5:20:24 AM

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dtabbler wrote:
look through this. might help to ID any unknowns in the mentioned solvent.

https://dmt-nexus.me/forum/default.aspx?g=posts&t=8080

That is a great link! Figures the one I'm looking for isn't listed though. I did learn the Klean Strip Acetone my friend has been using for all these years has toulene in it...
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biopsylo
#6 Posted : 2/23/2010 11:46:05 PM

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just curious, why would swiy bother with mixture like this? seems a lot of work + toxic waste water stream. is dcm really worth it?
 
benzyme
#7 Posted : 2/24/2010 12:05:55 AM

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yes.

dcm is the old-school chemist's solvent of choice.
limonene is a hippy fad.
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
Infundibulum
#8 Posted : 2/24/2010 12:09:20 AM

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ThirdEyeVision wrote:
Where can someone find decent DCM? All my friend has found is Klean Strip "KS-3 Premium Stripper". MSDS reads
DCM: 60-100%
Methanol: 7-13%
Stoddard Solvent (mineral spirits, aliphatic petroleum distillates, white spirits): 1-5%

I know I can remove the methanol by mixing with water. Can I remove the stoddard solvent by distilation? DCM boils at 104f and SS at 300f +

Would it be safe to use after a water cleaning then distillation?

Just water washing a few times will do it. No distillation is really required here. DCM is heavier than water and it sinks. Aliphatics are lighter than water so they float. and methanol is miscible with water.

A separatory funnel will do this job a piece of cake.

biopsylo wrote:
just curious, why would swiy bother with mixture like this? seems a lot of work + toxic waste water stream. is dcm really worth it?

It really is not a lot of work. And DCM is a seriously great solvent.

:: it evaporates really fast
:: it can pull freebases of almost anything people here may be interested in; dmt, 5-meo, bufotenine, harmine, harmaline, THH, psilocin, lsd, etc.
:: it can be distilled an reused many times (it boils at ~40C. )
:: it is not flammable, this is a great advantage when it comes to distilling.
:: it is great for pulling from minimally basic solutions. dmt can be pulled from a pH close to its pKa (8.68 ) with DCM, yet naphtha would not really pull anything at this pH.

DCM is the solvent of choice when it comes to extracting stuff from plants of uncertain or unknown alkaloid consistency or even alkaloids that are sensitive to extreme pH values like psilocin and bufotenine.

benzyme wrote:
limonene is a hippy fad.

hahaha!!

Need to calculate between salts and freebases? Click here!
Need to calculate freebase or salt percentage at a given pH? Click here!

 
ThirdEyeVision
#9 Posted : 2/24/2010 12:30:50 AM

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biopsylo wrote:
just curious, why would swiy bother with mixture like this? seems a lot of work + toxic waste water stream. is dcm really worth it?

Not sure what you mean by "toxic waste water stream". All solvent is recovered, no one is going to find a stream to pour it in if that is what you mean...
But DCM is a very usefull solvent, especially with alks that degrade with high temps (DCM boils at about 140f)
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biopsylo
#10 Posted : 2/24/2010 12:50:23 AM

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i guess one could distill the methanol from the water wash u mentioned, but it wouldn't be anhydrous anymore. this is the waste water stream i was referring to. but if all components are fractioned, and recovered, then cool!

i wish i was set up with a proper solvent recovery and distillation set-up.
maybe some dayRolling eyes

sounds like dcm has many advantages.
but alas, im a citrus hippieCool
 
benzyme
#11 Posted : 2/24/2010 1:15:34 AM

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methylene chloride is even referenced in the microgram for the extraction of dmt from confiscated plant material.
it's been used in extraction of alkaloids for a for a very long time;
look up caffeine extraction in any organic lab manual
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
ThirdEyeVision
#12 Posted : 2/24/2010 1:23:38 AM

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Infundibulum wrote:
ThirdEyeVision wrote:
Where can someone find decent DCM? All my friend has found is Klean Strip "KS-3 Premium Stripper". MSDS reads
DCM: 60-100%
Methanol: 7-13%
Stoddard Solvent (mineral spirits, aliphatic petroleum distillates, white spirits): 1-5%

I know I can remove the methanol by mixing with water. Can I remove the stoddard solvent by distilation? DCM boils at 104f and SS at 300f +

Would it be safe to use after a water cleaning then distillation?

Just water washing a few times will do it. No distillation is really required here. DCM is heavier than water and it sinks. Aliphatics are lighter than water so they float. and methanol is miscible with water.

A separatory funnel will do this job a piece of cake.

biopsylo wrote:
just curious, why would swiy bother with mixture like this? seems a lot of work + toxic waste water stream. is dcm really worth it?

It really is not a lot of work. And DCM is a seriously great solvent.

:: it evaporates really fast
:: it can pull freebases of almost anything people here may be interested in; dmt, 5-meo, bufotenine, harmine, harmaline, THH, psilocin, lsd, etc.
:: it can be distilled an reused many times (it boils at ~40C. )
:: it is not flammable, this is a great advantage when it comes to distilling.
:: it is great for pulling from minimally basic solutions. dmt can be pulled from a pH close to its pKa (8.68 ) with DCM, yet naphtha would not really pull anything at this pH.

DCM is the solvent of choice when it comes to extracting stuff from plants of uncertain or unknown alkaloid consistency or even alkaloids that are sensitive to extreme pH values like psilocin and bufotenine.

benzyme wrote:
limonene is a hippy fad.

hahaha!!


perfect! A simple water wash it is! Thx!
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benzyme
#13 Posted : 2/24/2010 4:27:44 AM

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simple distillation will separate dcm from these 'wax binders'
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
ThirdEyeVision
#14 Posted : 2/24/2010 5:01:14 AM

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benzyme wrote:
simple distillation will separate dcm from these 'wax binders'

Wax binders. Back to a two step clean up.
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benzyme
#15 Posted : 2/24/2010 5:19:19 AM

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say it out loud.. 'separation science is fun'.

master the application of it, and purity comes easily.
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
ThirdEyeVision
#16 Posted : 2/24/2010 7:09:03 AM

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mombreast wrote:
Distillation work can be done without a fume hood?

Because BP of DCM is low and it's not flammable?

I am just worrying about safety.

Yes you can distill without a fume hood. You obviosly want good air ventalation and a proper setup.
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benzyme
#17 Posted : 2/24/2010 2:17:37 PM

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correct

btw..if one is to distill dcm, one should use all glass.
rubber and plastics will get degraded
"Nothing is true, everything is permitted." ~ hassan i sabbah
"Experiments are the only means of attaining knowledge at our disposal. The rest is poetry, imagination." -Max Planck
 
ThirdEyeVision
#18 Posted : 2/24/2010 3:17:09 PM

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benzyme wrote:
correct

btw..if one is to distill dcm, one should use all glass.
rubber and plastics will get degraded

My friends setup is all ground glass conections so he's good.
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T
#19 Posted : 2/24/2010 7:12:13 PM
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Recently bought some DCM and a bit worried about seeing that the boiling point realy is a hot summer day. It's winter now, so not much of a problem, but the metal container it came in is already bulging a bit. Is it something to worry about? Don't have a cellar or a place where I know that it's always going to be cool temperature unfortunately.
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ThirdEyeVision
#20 Posted : 2/24/2010 8:11:52 PM

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T wrote:
Recently bought some DCM and a bit worried about seeing that the boiling point realy is a hot summer day. It's winter now, so not much of a problem, but the metal container it came in is already bulging a bit. Is it something to worry about? Don't have a cellar or a place where I know that it's always going to be cool temperature unfortunately.

Just keep it out of direct sunlight. The can is made to hold the stuff so just keep it in the shade and you should be fine.
ThirdEyeVision
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