|
|
 |
 |
 |
 |
register |
bbs |
search |
rss |
faq |
about
|
 |
 |
meet up |
add to del.icio.us |
digg it
|
 |
 |
| Laboratory Tips Safety proceedures, test reagents, drilling rubber stoppers, bending glass tubes, etc. Contributed to by chemists. |
 |
|
# 1

2008-08-25, 23:34
|
|
Regular
|
|
Suburbia.
|
|
Organic chemistry question (ethanol, methanol)
Hey, with the sulfuric acid + ethanol = ether reaction, could I use denatured alcohol instead of pure ethanol? As long as it yields nothing toxic/carcinogenic you could use a bit of methanol, couldn't you?
Sorry about being a novice to organic chemistry. At least I think it's organic chemistry.
|
# 2

2008-08-26, 03:12
|
|
|
Re: Organic chemistry question (ethanol, methanol)
I'd say it would result in dimethyl ether..... just buy some everclear and dry it on dehydrated salts man. Not worth risking fucking with dimethyl ether and shit. Or if you did use denatured you could keep the ether in the fridge and the DME would evaporate off...
|
# 3

2008-08-26, 06:54
|
|
Regular
|
|
Suburbia.
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
Originally Posted by HeaT
I'd say it would result in dimethyl ether..... just buy some everclear and dry it on dehydrated salts man. Not worth risking fucking with dimethyl ether and shit. Or if you did use denatured you could keep the ether in the fridge and the DME would evaporate off...
|
Hmm. It appears fortunately dimethyl ether has a boiling point of −23 °C so as long as I let it air away from a flame, I should be fine?
Also, I can't get everclear here.
|
# 4

2008-08-26, 08:59
|
|
Regular
|
|
mah compound
|
|
Re: Organic chemistry question (ethanol, methanol)
Heat has it right. And to answer your second question, IS IT REALLY WORTH THE BUZZ?
Seriously, respect your body more than that kid, or you won't live to see 20.
__________________
http://beesafe.goshopper.net/ For all your test reagent needs! Bee Safe!
|
# 5

2008-08-26, 10:41
|
|
|
Re: Organic chemistry question (ethanol, methanol)
Get Vodka (or go to a pharmacy and ask for "injection alcohol or whatever you OZ call it) its 90% EtOH. Distill it with a long fractionating column and slowly. Add some Anhydrous Magnesium Sulfate, filter and distill it again (with a column). That is as clean as it will get, that is what i do when i synthesis benzocaine or ether. Also DO NOT perform this ether synthesis if you do not have proper glassware! If you fuck up it will blow in your face! and yes traces of Methanol are indeed very bad, dimethyl ether is not some nice stuff!
Good luck anyways!
|
# 6

2008-08-29, 21:21
|
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
Originally Posted by stupid noob
Heat has it right. And to answer your second question, IS IT REALLY WORTH THE BUZZ?
Seriously, respect your body more than that kid, or you won't live to see 20.
|
If you're referring to me as "that kid", I meant to use everclear as an ethanol source. But yes... everclear is worth the buzz.... if you're referring to that? haha
|
# 7

2008-08-29, 23:38
|
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
Originally Posted by HeaT
If you're referring to me as "that kid", I meant to use everclear as an ethanol source. But yes... everclear is worth the buzz.... if you're referring to that? haha
|
pretty sure sn's talking about sniffing ether. I really hope swiy is planning an extraction, and not planning on inhaling Et2O.
|
# 8

2008-08-30, 01:41
|
|
Regular
|
|
mah compound
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
Originally Posted by HeaT
If you're referring to me as "that kid", I meant to use everclear as an ethanol source. But yes... everclear is worth the buzz.... if you're referring to that? haha
|
no man, you just misunderstood the timbre of my post, I was telling him "you need to respect your body more than THAT, kid"
That referring to huffing methyl ether, with the OP being the "kid"
__________________
http://beesafe.goshopper.net/ For all your test reagent needs! Bee Safe!
|
# 9

2008-08-31, 09:10
|
|
Regular
|
|
Utah: Mountains, Mormons, Meth
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
Originally Posted by stupid noob
That referring to huffing methyl ether, with the OP being the "kid"
|
So ethyl ether is safe? Good to know.
|
# 10

2008-08-31, 23:54
|
|
Regular
|
|
mah compound
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
Originally Posted by nshanin
So ethyl ether is safe? Good to know.
|
Ethyl ether is safe as hell, methyl ether, however, is not safe at all.
__________________
http://beesafe.goshopper.net/ For all your test reagent needs! Bee Safe!
|
|
#11
 2008-09-01, 00:51
|
hydroponichronic 
Regular
|
|
|
|
Re: Organic chemistry question (ethanol, methanol)
Wouldn't it be easier to distill the ether from starter fluid? I don't know the percentage of ether in the mixture, but 400ml of fluid is like $3 by me.
|
|
#12
 2008-09-01, 05:52
|
Naminator01 
Regular
|
|
|
|
Re: Organic chemistry question (ethanol, methanol)
The h2so4 method at high temperatures will yield primary secondary and sometimes tertiary ethers.
Enjoy your brain damage.
|
|
#13
 2008-09-01, 09:49
|
fcknut 
Regular
|
|
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
|
Originally Posted by Naminator01
The h2so4 method at high temperatures will yield primary secondary and sometimes tertiary ethers.
Enjoy your brain damage.
|
This seems a little unlikely, given that you would be starting with ethanol only. To make a secondary or tertiary ether you would have to invoke some rather odd carbocation rearrangements and addition reactions...
|
|
#14
 2008-09-02, 22:30
|
|
|
Re: Organic chemistry question (ethanol, methanol)
This seems a little unlikely, given that you would be starting with ethanol only. To make a secondary or tertiary ether you would have to invoke some rather odd carbocation rearrangements and addition reactions...
"high temperatures" being the operative words.
|
|
#15
 2008-09-03, 10:20
|
fcknut 
Regular
|
|
|
|
Re: Organic chemistry question (ethanol, methanol)
"high temperatures" being the operative words.
refs?
mechanisms?
I'm somewhat dubious, but happy to be proved wrong !
|
|
#16
 2008-09-03, 15:33
|
|
|
Re: Organic chemistry question (ethanol, methanol)
^^i'm kind of in a hurry right now but just based on intuition, after initial formation of the ether, at harsh enough conditions a dehydration could possibly occur at an a-Carbon to form a secondary ether...however, you're right in being skeptical since the ether would probably ignite before this could happen...perhaps at high pressure instead? It's not like I've ever done this myself, feel free to poke holes in my truly hypothetical argument.
|
|
#17
 2008-09-03, 15:59
|
fcknut 
Regular
|
|
|
|
Re: Organic chemistry question (ethanol, methanol)
not sure about dehydration, but perhaps polymerisation could occur through formation of oxonium species, which may then be subject to attack from residual alcohols. I guess this could lead to secondary and tertiary polyethers...
I think sealed vessels and high temperatures would certainly promote this...
|
|
#18
 2008-09-03, 21:08
|
|
|
Re: Organic chemistry question (ethanol, methanol)
Quote:
|
Originally Posted by fcknut
not sure about dehydration, but perhaps polymerisation could occur through formation of oxonium species, which may then be subject to attack from residual alcohols. I guess this could lead to secondary and tertiary polyethers...
I think sealed vessels and high temperatures would certainly promote this...
|
man, i'd like to try that out. That process could yield some interesting results. I would bet that if the oxonium ion were formed, a high T would make the alcohol attack pretty favorable...if working with just ethanol and possibly trace methanol, there shouldn't be too much trouble with steric hindrance...
|
|
#19
 2008-09-15, 19:43
|
stateofhack 
Regular
|
|
|
|
Re: Organic chemistry question (ethanol, methanol)
http://www.sciencemadness.org/talk/viewthread.php?tid=9747
Of your interest....
|
| Thread Tools |
 Show Printable Version
 Email this Page
|
| Display Modes |
Linear Mode
 Switch to Hybrid Mode
 Switch to Threaded Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
 |
 |
To the best of our knowledge, the text on this page may be freely reproduced and distributed.

totse.com certificate signatures
|
 |
 |
About | Community | Bad Ideas | Drugs | Ego | Erotica | Fringe | Society | Technology
|
 |
 |
 |
 |
|
|