| Search |
The weirdest thing happened today with my oscilloscope . . .
I am guessing that you may have a minor, intermittent leak to ground internal to the chassis of your ... |
11-5-2014 at 06:27
by: Burner |
The weirdest thing happened today with my oscilloscope . . .
Is it an older scope? I have a 1960's Tek and I am sure that it is starting to show its age. It wo ... |
10-5-2014 at 23:55
by: Burner |
The weirdest thing happened today with my oscilloscope . . .
Doesn't the GFI trip when current on the "hot" fails to match the current on the "neutral" within a ... |
10-5-2014 at 16:23
by: Burner |
Acetone
There are a number of processes to produce acetone. The type of contaminants observed will tell you ... |
10-5-2014 at 16:19
by: Burner |
Apparent decomposition of stored acetone
Also, I suspect that the cans of acetone underwent a bit of "breathing" as a result os major tempera ... |
9-5-2014 at 16:18
by: Burner |
Apparent decomposition of stored acetone
Bases can also catalyze aldol condensations, so the Ammonia is a suspect. However, I am wondering i ... |
9-5-2014 at 16:14
by: Burner |
Cesium from CsCl
[rquote=330659&tid=6981&author=Zyklonb][rquote=250747&tid=6981&author=Zan Divine]You ... |
9-5-2014 at 09:54
by: Burner |
Lutein tablets
And I know of no "modification" of lutein that can remove that strong chromophore is a reversible ma ... |
9-5-2014 at 07:07
by: Burner |
True Vacuum Pump vs. Water Aspirator
^^^ They are normal water aspirators, so you can expect similar performance. Using an ice bath on ... |
9-5-2014 at 04:01
by: Burner |
True Vacuum Pump vs. Water Aspirator
BTW, you may want to consider one of these (http://www.ebay.com/itm/Brinkmann-B-169-Vacuum-Aspirator ... |
8-5-2014 at 09:36
by: Burner |
uk Ebay seller busted
^^^ If it was in the US, from what I have read recently, practically zip. We seem to be dealing wi ... |
8-5-2014 at 07:46
by: Burner |
uk Ebay seller busted
Unfortunately, that seller had a number of items that the US authorities would classify as "precurso ... |
8-5-2014 at 06:20
by: Burner |
Apparent decomposition of stored acetone
Was it possible that when you used the acetone it might have been exposed to a strong acid vapor (eg ... |
7-5-2014 at 15:50
by: Burner |
Apparent decomposition of stored acetone
Did you have the acetone stored over a drying agent such as MgSO4? If so that would be the problem. ... |
7-5-2014 at 04:38
by: Burner |
How did you first come to this forum?
I feel that this is the biggest stumbling block for some of the younger chemists. I was trained to ... |
6-5-2014 at 16:08
by: Burner |
How did you first come to this forum?
[rquote=330190&tid=30104&author=AvBaeyer]Like Burner, I too am a retired organic/medicinal c ... |
6-5-2014 at 10:55
by: Burner |
How did you first come to this forum?
I am in the US and several years ago I retired after a long career in R&D and decided to go back ... |
5-5-2014 at 16:58
by: Burner |
Glassblowing
jwpa17, is this (http://www.ilpi.com/glassblowing/) the site that you had seen?
[Edited on 3-5-2014 ... |
3-5-2014 at 09:56
by: Burner |
Alfa Aeser
[rquote=329667&tid=30270&author=Zyklonb]No, I haven't bought from them before, a since you f ... |
1-5-2014 at 09:40
by: Burner |
Chemical Resistant Vacuum Pump
If you are looking for used chemically-resistant pumps they show up often on the US EBay site. You ... |
29-4-2014 at 23:43
by: Burner |
Shelf life of Ammonia and Muriatic acid
[rquote=328213&tid=30155&author=sasan]Hgdinis 25 it was made of poly ethylene I think
I'm w ... |
18-4-2014 at 07:14
by: Burner |
How to Safely release DiEthyl Ether vapors in air?
What is the possibility of some peroxide formation in this situation? Without knowing the particula ... |
10-4-2014 at 18:21
by: Burner |
Sodium Borohydride from chinese supplier
Dr Bob,
You mentioned using an empty paint can for storage. Do you, or anyone else, know of a s ... |
31-3-2014 at 15:29
by: Burner |
