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The official "Is this chem ok to use? / Where can I find ...?" thread

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endlessness

endlessness

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It is a common question that people ask, if a certain chemical is OK to use for extraction or not, and also where to find such and such chemical. Instead of cluttering up the forum with hundreds of threads about it, those who have these question can post here (and threads made with such questions will be merged here).

But before asking such questions, here's a few important links you should THOROUGHLY read:

Check what your solvent contains here thread

FAQ: Is my solvent/chemical OK to use ?

The Suppliers section
 
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my thread was merged so i didnt see the thing about lowes. about the caps lock sorry im a bit of a spaz atm ill keep that in mind next time. The ethyl acetate was worrying me too so i will check out ace and lowes if no luck then i will buy a few differant brands online and test how well they work i found some for 4 bucks that checks out on the list that was posted thank you guys.
 
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HI, this is my first post, sorry if it is in the wrong place. I was wandering what acetone should I use for a extraction? what purity?. BTW I live in the UK and I would like to purchase from ebay. I have found one but I am not sure about it,

Acetone
 
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The ebay acetone looks ok if the specs are correct. It's best to buy foodgrade stuff but I doubt if this is available for acetone. You can do an evaporation test with the acetone alone to see wheter it leaves residue. It shouldn't leave residue.
 
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Can hydrated lime be used as a substitute for lye most of the time or are there special conditions in which lime will work or not work?

I ask because I do not like useing lye and it is difficult to obtain, for me, as well.
Also, although I love qt21qt21's "dry tek" I suspect that I could get much greater yeild with a diffrent tek that is ..."wet".
I would like to use muratic acid and lime in an A/B extraction. I hypothesize that eliminating vinegar from my process and using a diffrent acid will result in a greater yeild.

Qt21qt21 says in his tek that all the materials called for must be percise or the tek won't work.
Therefore I'm thinking that if I simply substitute a solution of hydrocloric acid for the vinegar in the 'dry tek' it won't work(?)...or will it?
Does anybody already know if this will work or not?


It seems that all the wet-teks I have reveiwed call for lye.
Could I substitute lime for the lye in, say, Vovins Tek?
 
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Mr. K as been looking for lye locally and can't find any so a substitute is needed. During a recent trip to Home Depot he came across a drain opener. MSDS says that its 34-50% sodium hydroxide, 0-3% potassium hydroxide, and 47-62% water. Initial thoughts is that this would serve well as a substitute because the NaOH and KOH are the recommended acids for A/B with mimosa. If Mr. K can get a yay or nay on this substitute it would be helpful. MSDS here http://www.homedepot.com/catalog/pdfImages/89/8957a472-4b0b-4330-92df-346a650fb4c4.pdf
 
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YTXian said:
Can hydrated lime be used as a substitute for lye most of the time or are there special conditions in which lime will work or not work?

I ask because I do not like useing lye and it is difficult to obtain, for me, as well.
Also, although I love qt21qt21's "dry tek" I suspect that I could get much greater yeild with a diffrent tek that is ..."wet".
I would like to use muratic acid and lime in an A/B extraction. I hypothesize that eliminating vinegar from my process and using a diffrent acid will result in a greater yeild.

Qt21qt21 says in his tek that all the materials called for must be percise or the tek won't work.
Therefore I'm thinking that if I simply substitute a solution of hydrocloric acid for the vinegar in the 'dry tek' it won't work(?)...or will it?
Does anybody already know if this will work or not?


It seems that all the wet-teks I have reveiwed call for lye.
Could I substitute lime for the lye in, say, Vovins Tek?
Click to expand...

You cannot use lime instead of lye in a wet tek because lime is poorly soluble in water, hence why you only see it used in a dry tek. So just do a dry tek instead.
lus vinegar is nicer to work with imo
As for muriatic acid, people have used it often enough and there is no significant difference in yield vs vinegar.

Mr K, I dont know about that product but MSDS looks good, if its really NaOH+KOH+water it should work just fine!
 
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I can't find Naptha or lye in canada, I could order them off amazon, but I was wondering if there was any smaller chain-hardware stores in canada that sell either. I've checked home hardware, home depot, a couple of smaller paint stores that only had devoe vm & p (I can't find any info on it, I'm not planning on using it) and Canadian Tire
 
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Sorry for bothering You about this, fellows, but SWIM needs some help for his first A/B extraction.
Until now, he used Lazyman but wasn't satisfied of the result's purity.

Now, as SWIM is from Italy, he can get NO VM&P Naphta, so he was looking for advices about use of Trichloroethylene or Diethyl ether as nonpolar solvents. Might be toxicity of Trichloroethylene could be diminished evaporating the result again with acetone?

Thank You for Your attention.
 
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Damn, I can't find 100% NaOH drain cleaner. The best I've seen was like 50% or more, rest is - sodium chloride, urea and mineral oil. Isn't liquid tho. Can it be used in extraction from mimosa ?
 
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