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Tamadragon
Stranger


Registered: 02/29/04
Posts: 382
Loc: CAN
Last seen: 15 years, 7 months
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Re: polar and non polar solvents... *DELETED* [Re: Quake3]
#6092520 - 09/23/06 05:37 AM (17 years, 7 months ago) |
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Post deleted by TamadragonReason for deletion: .... ...
-------------------- ~Tama Peace I get real lonely
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fastfred
Old Hand



Registered: 05/17/04
Posts: 6,899
Loc: Dark side of the moon
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Re: polar and non polar solvents... [Re: Tamadragon]
#6097772 - 09/25/06 06:59 AM (17 years, 7 months ago) |
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No need to be fearmongering about the dangers of methanol. Methanol is a perfectly good solvent. You don't want to drink it or have prolonged skin exposure. You certainly don't want to use it on cuts, scrapes or open wounds.
But it's perfectly fine to work with. Most solvents are fire hazards, so obviously you need to practice some common sense when using them. I've never heard of anyone being poisoned by denatured alcohol who didn't drink it. Washing parts in methanol for hours or something like that may be a problem, but it's not going to harm you from just handling it for a bit, gloves or not.
Just avoid drinking it, getting it in your eyes, or breathing the fumes in a confined area for long periods. Otherwise it should be fine. Getting some on your hands or breathing a little bit of fumes from it isn't going to cause you problems.
Methanol is yellow "heet" BTW if anyone is interested in using it.
-FF
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elsig
Knowledgespeaks, wisdom listens



Registered: 09/14/06
Posts: 533
Loc: the beach
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Re: polar and non polar solvents... [Re: fastfred]
#6097869 - 09/25/06 08:19 AM (17 years, 7 months ago) |
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working with any solvent or chemical its advicable to read the safety sheet for it first. these are called MSDS (material safety data sheets) and can be found here: http://www.msds.com/
most solvents and chemicals should be handlet with care and respect. evaporation of solvent should be done in areas with good ventilation and so on. common sene and precautions gets you a long way-
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TheBotanist
Stranger
Registered: 03/02/06
Posts: 48
Last seen: 16 years, 9 months
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Re: polar and non polar solvents... [Re: elsig]
#6098699 - 09/25/06 02:04 PM (17 years, 7 months ago) |
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Quote:
elsig said: Some info on solvents , basic stuff but there is a list there over solvents, those with high sipole moments and dielectric constant are polar solvents, those with low numbers are non polars. methanol could be a non polar solvent you could use.
http://www.usm.maine.edu/~newton/Chy251_253/Lectures/Solvents/Solvents.html
Methanol is actually very polar, and not non polar. The -OH group is much more electronegative than the methyl group, giving it polarity. It is an optic nerve poison but can be safely used if you don't drink it or get it in your eyes or somthing like that. It is not that dangerous, I have used it in every lab since I was a freshmen without incident. This solvent is readily available and cheap, but I always steal mine from lab.
Edited by TheBotanist (09/25/06 02:09 PM)
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elsig
Knowledgespeaks, wisdom listens



Registered: 09/14/06
Posts: 533
Loc: the beach
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Re: polar and non polar solvents... [Re: TheBotanist]
#6099175 - 09/25/06 04:34 PM (17 years, 7 months ago) |
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yes correct , i dont know why i wrote non polar, my bad, he asked for a polar solvent and therefor i suggested methanol.
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newmodel
The Observer


Registered: 06/24/05
Posts: 418
Loc: Around the 10,000 lakes.
Last seen: 9 years, 2 months
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Re: polar and non polar solvents... [Re: elsig]
#6099642 - 09/25/06 06:43 PM (17 years, 7 months ago) |
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Hello~
I am a little out of my league but it so happens I was reading about non-polar* solvents today that are used to extract DMT:
Naphtha:
Coleman fuel, or lighter fluid. Evaporate a small amount in a dish and inspect the residue if you are unsure if it's contaminants.
Methylene Chloride:
Also known as DCM or dichloromethane. Often used for adhesive solvent for acrylics. Pure DCM can be found in craft stores. DCM must be distilled first from all non-flammable paint strippers beforehand.Also may containe methanol, organic solvent.
Ether:
Purchased at automotive stores.To remove liquid ether from an engine-starting aerosole can, spray the contents of the can down a 12 inch (3/4) PVC pipe. Ether will condense on the sides of the pipe and fall down.Extremely volatile.
Chloroform:
Can be purchased over the internet at arts and crafts stores.Is usually harsh on organics and has a boiling range of 35-65 C.
I hope this helps. These are NON-Polar Solvents***
Peace,
I.T.
-------------------- A man that comes to the door is never quite the same man who went out. Freedom is something that dies unless it's used
Edited by newmodel (09/25/06 06:47 PM)
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bearstalker
Stranger

Registered: 04/07/10
Posts: 10
Last seen: 10 years, 8 months
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Re: polar and non polar solvents... [Re: elsig]
#12356621 - 04/08/10 05:03 PM (14 years, 1 month ago) |
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would it be safe to use "cellulose thiners"? for the extraction of LSA?
here is the info on it:
http://www.birdbrand.co.uk/msds/Cellulose%20Thinners.pdf
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