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Are there chinese hotplates & heating mantles as good as others but significantly cheaper?
So...... The Staco-type Variacs, that are so common(used), in the U.S.A., currently list for about ... |
26-5-2018 at 14:28
by: zed |
Are there chinese hotplates & heating mantles as good as others but significantly cheaper?
I bought a couple of ancient, semi-functioning, American stir-plates, a few years back.
Cheap as ... |
25-5-2018 at 13:45
by: zed |
how much of a history does glassware keep?
Some scientists were proposing that even incineration might not completely inactivate some prions.
... |
25-5-2018 at 13:09
by: zed |
Indole identification questions (para-Dimethylaminobenzaldehyde)
Still indoles, of course! Just not reactive to standard test reagents anymore!
Woodstrips? Low- ... |
25-5-2018 at 12:48
by: zed |
Alkyl Phenyl Ketones Synthesis through Dry Distillation
Guys used to use Benzene to rinse off their hands.
Promotes certain types of Leukemias. Worse, s ... |
24-5-2018 at 17:01
by: zed |
how much of a history does glassware keep?
Prions, which should be much more fragile than simple molecules, cannot be reliably removed from con ... |
21-5-2018 at 16:34
by: zed |
best aspirator for 24/40 glassware sizes?
You can't possibly foresee every potential problem. For me, it leads to overthinking, and paralys ... |
19-5-2018 at 12:51
by: zed |
Molecular Sieves
I have thoughtfully designed and executed a lot of clever experiments, in numerous areas.
At leas ... |
18-5-2018 at 14:10
by: zed |
Looming DCM Ban (US)
Well, sin
There is a major supplier in Sacramento.
Wants 70 bucks per gallon, on-line.
Perh ... |
17-5-2018 at 17:03
by: zed |
A Find
We know that many countries in that area of the world are struggling.
European countries in gener ... |
17-5-2018 at 16:56
by: zed |
Preparation of Hydroferrocyanic Acid
Now, I may be proposing something impossible.
But, I'm curious.
The preparation of Sodium Cy ... |
17-5-2018 at 13:21
by: zed |
best aspirator for 24/40 glassware sizes?
Well, sometimes a thousand Watts is a thousand watts, and sometimes it isn't.
I have never succes ... |
16-5-2018 at 18:33
by: zed |
How much solution is required to react
I've seen a lot of procedures. Most of them produce muck, and they don't seem to yield very well.
... |
15-5-2018 at 16:49
by: zed |
Molecular Sieves
The Dean-Starks I have seen, seem fragile and expensive. Also, they depend on using a solvent immi ... |
15-5-2018 at 13:54
by: zed |
Indole identification questions (para-Dimethylaminobenzaldehyde)
Try the woodstrip HCl test. Nice color!
Though I think it will not work for your 1 Acetyl type I ... |
14-5-2018 at 18:32
by: zed |
kanthal wire in a vacuum?
Now, here I have some experience. And, it's touchy area.
Vacuum is a wonderful insulator.
Tra ... |
14-5-2018 at 18:24
by: zed |
Is this kit any good?
Most of the glassware I have received from Deschem has been sturdy . Not the most finely symmetric ... |
14-5-2018 at 17:25
by: zed |
best aspirator for 24/40 glassware sizes?
Glass? Well, it's a nice thought. But, I'm a giant, and I am rather clumsy. I break things.
Gl ... |
14-5-2018 at 17:07
by: zed |
Is this kit any good?
To date, my Deschem 24/40 joints have been tight and sweet. |
13-5-2018 at 14:59
by: zed |
best aspirator for 24/40 glassware sizes?
Try the search engine. There have been numerous discussions about aspirators, and many personal rec ... |
13-5-2018 at 14:32
by: zed |
design choice for electrical resistance chemistry lab furnace
Heh, heh.
Aldrich is primarily a Chemical supplier. So.... That cable-tie device, in the standa ... |
13-5-2018 at 14:19
by: zed |
Nitrogen Dioxide Smell
Trapping a poisonous gas? Suck back problems? Seems like a common complaint here.
I prefer t ... |
13-5-2018 at 13:33
by: zed |
Looming DCM Ban (US)
So, why another law?
DCM is pretty bad stuff. But, as a society, we use very little of it.
... |
12-5-2018 at 16:43
by: zed |
Is this kit any good?
Looks OK.
I recently bought THIS kit from Nanshing glass. Hasn't even arrived yet.
https://ww ... |
12-5-2018 at 15:46
by: zed |
design choice for electrical resistance chemistry lab furnace
This might be a case of overthink.
Regardless of design, there will always be problems.
Quite ... |
11-5-2018 at 14:43
by: zed |
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