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Testing the efficacy of a fractionating column?
[rquote=317060&tid=28741&author=The Ideal Gas Lawyer]
In that case I'll probably try an eas ...
29-1-2014 at 12:33
by: Magpie
Testing the efficacy of a fractionating column?
I agree. The bore on that stopcock plug is likely no more than 3mm. It will severely restrict your ...
28-1-2014 at 20:24
by: Magpie
Testing the efficacy of a fractionating column?
In your original post you show a picture of a piece of glassware. What is it and how do you intend ...
28-1-2014 at 16:48
by: Magpie
Pretty Pictures (2)
[rquote=316190&tid=26378&author=Bot0nist]It shows the (sometimes) shitty side of chemistry.[ ...
21-1-2014 at 13:25
by: Magpie
Max vacuum of glassware
0.098MPa = 737mmHg where 760mmHg = 1 atm and 0mmHg = full vacuum.

So I would say that that glassw ...
21-1-2014 at 11:46
by: Magpie
Vacuum Distillation Confusion
I've run several vacuum distillations during various syntheses. I remember some pressure fluctuatio ...
15-1-2014 at 16:25
by: Magpie
Methylamine problem
If you could clarify the process conditions it would help us to assist you.

Surely you don't have ...
8-1-2014 at 14:10
by: Magpie
Preparation of cyanides
[rquote=314093&tid=23&author=charmander]Magpie, I read the section on cyanogens but I could ...
4-1-2014 at 19:55
by: Magpie
Preparation of cyanides
Take a read of the following, available through Google Books:

Allen’s Commercial Organic Analys ...
26-12-2013 at 21:25
by: Magpie
A writing idea
We already have a great deal of information, albeit dispersed, in the forum about how to get reagent ...
17-12-2013 at 12:03
by: Magpie
Starting out from scratch buliding a garage lab
I have often toyed with the idea of teeing in a large CO2 fire extinguisher to the ducting of my fum ...
17-12-2013 at 11:44
by: Magpie
Starting out from scratch buliding a garage lab
[rquote=311537&tid=27954&author=Dr.Bob]A few fire extinguishers are great to have, almost an ...
17-12-2013 at 11:39
by: Magpie
So I goofed...
Fuses are sized by the designer/manufacturer to protect the device. I guess you learned that the ha ...
17-12-2013 at 11:23
by: Magpie
Alternative inert gasses
Here's some more info:

http://www.sciencemadness.org/talk/viewthread.php?tid=10366#pid134453

R ...
17-12-2013 at 10:25
by: Magpie
Electrolytic Hydrogenation/Reduction questions
If I was running an aluminum plant I would absolutely minimize the use of any resistor in the cell c ...
15-12-2013 at 20:28
by: Magpie
Specific Enthalpy of Fusion to Molar Heat of Fusion?
[rquote=311348&tid=27945&author=tylerlopez]

For all other calculations an equation was gi ...
15-12-2013 at 11:24
by: Magpie
300+ PSI Autoclave
WGTR: That should be plenty safe, ie, it will have a good factor of safety of 2000/400 = 5. Gettin ...
14-12-2013 at 18:16
by: Magpie
Magnetic Stirrer and Ice Baths
It's a PC-320. I just tested it with a 1" stir bar in an empty beaker and it lost coupling at about ...
12-12-2013 at 22:11
by: Magpie
So I goofed...
Here's the reason you only get 1/4th the power:

E=IR (ohm's law); I=E/R

P=EI=E^2/R

R(resist ...
12-12-2013 at 21:56
by: Magpie
Magnetic Stirrer and Ice Baths
The stir bar in the RBF is probably ~1" from the hotplate surface. I don't know what the outer limi ...
12-12-2013 at 21:42
by: Magpie
Magnetic Stirrer and Ice Baths
I do that kind of thing all the time with my Corning magnetic hotplate-stirrer. I heat an oil bath ...
12-12-2013 at 21:13
by: Magpie
So I goofed...
That would be my guess also, ie, it might work fine but just run a little faster, like at 60/50 th o ...
12-12-2013 at 14:22
by: Magpie
So I goofed...
What is the nameplate frequency?
12-12-2013 at 13:22
by: Magpie
Electrolytic Hydrogenation/Reduction questions
[rquote=310784&tid=27852&author=Electra]
Industrial settings are going to work with a lot m ...
11-12-2013 at 19:34
by: Magpie
Allyl alcohol in 70% yield
Yes, thanks for this detailed report. I made allyl alcohol a few years back using oxalic acid and g ...
11-12-2013 at 11:44
by: Magpie
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