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High Temperature Stoppers
Illuminating procedure! (No pun intended) |
13-2-2016 at 11:06
by: Heavy Walter |
High Temperature Stoppers
JJay
If you plan to put the stopper in the borosilicate side of your transition quartz/glass, the s ... |
12-2-2016 at 11:59
by: Heavy Walter |
How do I seal a glass ampoule in inert atmosphere?
I use the "low tech method" and also freezing the compound inside the ampoule, in order to reduce fl ... |
9-2-2016 at 03:23
by: Heavy Walter |
GC analysis
So the system has been down for a while?
The inlet has a glass liner, that will keep most of the di ... |
27-1-2016 at 11:17
by: Heavy Walter |
Obscure antiquated or household drugs
Right Cheddite!
In my country there were no records of terrible deaths by radiation but surely ha ... |
26-1-2016 at 08:12
by: Heavy Walter |
GC analysis
Hi
Just dissolve them in hexane.
The oven program is just a suggestion.
As you only need to separ ... |
26-1-2016 at 08:07
by: Heavy Walter |
Obscure antiquated or household drugs
From my collection of old/weird products, the following is the weirdest:
A "pill" to transfer radio ... |
25-1-2016 at 12:50
by: Heavy Walter |
GC analysis
Hi
A GC capillary column as HP-5 will do the separation.
But you don't mention some aspects: trace ... |
25-1-2016 at 12:40
by: Heavy Walter |
Looking for info on vacuum pump to buy, compiled short list of products Im interested in. Advice/Critiques/Suggestions welcome!
See my synthesis line.
It is partially disassembled: diffusion cooling fan was removed and high vac ... |
18-1-2016 at 10:18
by: Heavy Walter |
Looking for info on vacuum pump to buy, compiled short list of products Im interested in. Advice/Critiques/Suggestions welcome!
Hi Rocket89
Me too an old lurker and a new member.
I have a small high vacuum lab and planning s ... |
18-1-2016 at 09:58
by: Heavy Walter |
Preparation of cyanides
Hi
See this:
http://www.ehs.wisc.edu/chem/GlasswareCleaning.pdf
|
14-1-2016 at 07:44
by: Heavy Walter |
Lithium hydride
There is a new Hydrogen storage device -an hydride cell based in TiMn alloy- able to delivery 10 lit ... |
9-1-2016 at 03:23
by: Heavy Walter |
Gold Recovery Computer Scrap Pentium Pro CPUs - VIDEO
Yes... but no fun for chem lovers! |
2-1-2016 at 12:22
by: Heavy Walter |
Gold Recovery Computer Scrap Pentium Pro CPUs - VIDEO
Thanks aga,
I didn't get that when watching the video. |
2-1-2016 at 11:07
by: Heavy Walter |
Gold Recovery Computer Scrap Pentium Pro CPUs - VIDEO
Hi kadriver
Excellent procedure!
May be I lost the info, but: how many boards do you need in ord ... |
2-1-2016 at 10:57
by: Heavy Walter |
olfactory fatigue
Being able to rely in other indicators, I would avoid to use the nose as a measuring instrument.
Lo ... |
1-1-2016 at 12:52
by: Heavy Walter |
Table salt heating bath?
Hi
Just heating at ca. 400 °C.
And in very humid ambient. I used coarse salt and crystals tende ... |
29-12-2015 at 10:51
by: Heavy Walter |
Table salt heating bath?
Hi
My limited experience with salt is that it tends to solidify, making difficult to remove a flask ... |
29-12-2015 at 09:35
by: Heavy Walter |
Thought Experiment: Making deuterated Compounds
Hi Pyro
You are right in principle; but some of those displacements must to be forced.
By the way, ... |
24-12-2015 at 14:08
by: Heavy Walter |
Thought Experiment: Making deuterated Compounds
Standard conditions.
Electron impact, with quadrupole or magnetic sector. |
24-12-2015 at 13:15
by: Heavy Walter |
Thought Experiment: Making deuterated Compounds
Ah, good!
C6D6 is typically used as surrogate in BTX controls by GCMS.
I agree with you that GC te ... |
24-12-2015 at 10:54
by: Heavy Walter |
labelling with D2
Hi
I agree with you.
NMR services are provided at local university.
The C6D6 I prepared was check ... |
23-12-2015 at 14:27
by: Heavy Walter |
perdeuterated benzene
Hi
New to the forum, I made a brief description of my successful experience deuterating benzene, pr ... |
22-12-2015 at 05:42
by: Heavy Walter |
When Chemistry Goes Wrong
Hi
By the way, did you use heat spreader? |
18-12-2015 at 03:25
by: Heavy Walter |
When Chemistry Goes Wrong
Hi
Here are my old bad experiences:
-When working at the university, I needed to protect some carb ... |
17-12-2015 at 08:18
by: Heavy Walter |
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