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Preliminary title: sauron
Already under construction.
As to the cult of personality, if nominated I will not accept. If ele ... |
26-3-2007 at 09:21
by: Sauron |
Preliminary title: sauron
Reducing an alcohol to a ketone?
No, you are oxidizing an alcohol ( secondary one) to a ketone.
... |
26-3-2007 at 07:55
by: Sauron |
Vacuum (2-7 torr range) Can it be achieved cheaply?
Oh. That's not hard vacuum, or even medium vacuum. That is low vacuum, anything from 1 toru up is lo ... |
26-3-2007 at 01:38
by: Sauron |
Vacuum (2-7 torr range) Can it be achieved cheaply?
Do you mean 2 x 10 to the -7 torr?
Neon signs do not use such a hard vacuum, because no current w ... |
26-3-2007 at 01:25
by: Sauron |
Vacuum (2-7 torr range) Can it be achieved cheaply?
The short answer is no.
You need the following:
A good two stage oil sealed mechanical pump
... |
26-3-2007 at 00:46
by: Sauron |
keten lamp
I'm not too thrilled with a -8 C flash point though. On the other hand it's not as bad as ether (-30 ... |
26-3-2007 at 00:39
by: Sauron |
Acetic anhydride preparation
Even oxalyl chloride isn't quite as stable as we would like, which has always limited its utility be ... |
25-3-2007 at 21:23
by: Sauron |
Acetic anhydride preparation
Thanks @Eclectic.
Hmmm. If 1,1,1-trichloroethane can be hydrolyzed by water and catalyst (H2SO4) ... |
25-3-2007 at 19:52
by: Sauron |
keten lamp
I think you are confusing TCT with TCCA. And then misremembering what TCCA does.
TCT (CC) chlorin ... |
25-3-2007 at 19:09
by: Sauron |
Anyone Up for a DIY Particle Accelerator?
Outgassing the pump oil prior to installation would help.
Anyway did you see the article from the ... |
25-3-2007 at 07:09
by: Sauron |
keten lamp
I named that a little wrong, it is 1,1,1-trichloroethane.
Industrially making Ac2O out of vinyl ... |
25-3-2007 at 04:28
by: Sauron |
This is a new one....
That would do it!
Good riddance. Anyway you said acetone? I don't suppose they also had hydrogen ... |
25-3-2007 at 02:31
by: Sauron |
keten lamp
In the first reaction you start with vinyl acetate and acetic acid. Supposedly 77% of the VA reacts ... |
25-3-2007 at 02:22
by: Sauron |
keten lamp
Put that question aside for the moment.
Here are two US patents from 1930s.
First one says vin ... |
25-3-2007 at 01:01
by: Sauron |
keten lamp
That Daicell patent is concerning treatment off offgases from ketene process.
Look at data sheets ... |
24-3-2007 at 23:19
by: Sauron |
keten lamp
I believe both acetic acid and acetic anhydride are totally miscible with benzene and toluene. So yo ... |
24-3-2007 at 22:36
by: Sauron |
Acetic anhydride preparation
I have Photoshop and ACDC both recent versions. When www.freepatentsonline.com pulls up an older pat ... |
24-3-2007 at 22:19
by: Sauron |
Acetic anhydride preparation
I just went to the UG Patent Office web site as recommended by one of our illustrious fellow members ... |
24-3-2007 at 22:07
by: Sauron |
keten lamp
@leu, please don't overlook the simple fact that @hector's requirement is barely larger than large b ... |
24-3-2007 at 18:19
by: Sauron |
Acetic anhydride preparation
I'd go lower than -10 for the coolant, and use a high surface area condenser rather than a simple Li ... |
24-3-2007 at 17:18
by: Sauron |
Gitting rid of Cl2
Great handle. |
24-3-2007 at 17:08
by: Sauron |
keten lamp
I am very dubious of the CO2/acetate method, as the extraction of anhydride has to be done fast enou ... |
24-3-2007 at 16:42
by: Sauron |
Acetic anhydride preparation
"Drying" Ac2O is a unique concept since Ac2O reacts with water, and is a well known dehydrating agen ... |
24-3-2007 at 07:18
by: Sauron |
keten lamp
You are buying reagent grade acetyl chloride from Merck in a 200 L drun. This is PE lined steel. I t ... |
24-3-2007 at 01:52
by: Sauron |
This is a new one....
OK, sulfamic acid is very useful for neutralizing strong alkilis, citric acid is as harmless as lemo ... |
24-3-2007 at 00:50
by: Sauron |
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