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Advice on buying a GC/MS
HPLC is overall just much more versatile than GC. You have more options of separation modes, and you ... |
19-5-2020 at 04:36
by: DavidJR |
Latest chemical order?
Recent orders:
[list]
[*] 1kg oxone ("potassium peroxymonosulfate", but more accurately 2KHSO5·KH ... |
18-5-2020 at 05:44
by: DavidJR |
Looking for Sudan III (Sudan Red) or substitutes...
https://www.ebay.co.uk/itm/Sudan-III-C-I-26100-100g/184273428031?hash=item2ae78d5e3f:g:spMAAOSwpEleq ... |
14-5-2020 at 10:12
by: DavidJR |
Hotplates
Do not use open flames to heat vessels of flammable solvents. It is an accident waiting to happen/ |
14-5-2020 at 04:47
by: DavidJR |
Buying chemicals in Poland "OTC"
[rquote=635978&tid=152908&author=mackolol]
I think you're right, Poland doesn't export much ... |
13-5-2020 at 15:46
by: DavidJR |
Strange P-nitroaniline color
When pure it's very bright yellow, so I expect yours is significantly degraded - or perhaps just con ... |
13-5-2020 at 15:39
by: DavidJR |
Synthesis for Hydrogen Peroxide?
I've been meaning to try out the (old) anthraquinone process for a while. I have some 2-ethylanthraq ... |
13-5-2020 at 15:34
by: DavidJR |
Buying chemicals in Poland "OTC"
[rquote=635963&tid=152908&author=outer_limits]Regarding Pol-Aura - I'm not so sure.
In cond ... |
13-5-2020 at 10:00
by: DavidJR |
Chemical uses for 3-MMC
That is a bit of a concerning mixup! |
13-5-2020 at 09:26
by: DavidJR |
Buying chemicals in Poland "OTC"
Okay, thank you. I will report back if successful. |
13-5-2020 at 09:22
by: DavidJR |
Looking for Sudan III (Sudan Red) or substitutes...
[rquote=635955&tid=155341&author=Johnny Windchimes][b][i]YOU....[/i][/b]
....Are absolute ... |
13-5-2020 at 09:17
by: DavidJR |
Alternative Solvents and New Solvents - General Discussion
[rquote=635859&tid=9757&author=njl]I agree dcm is great. I bought a liter for pretty cheap b ... |
13-5-2020 at 02:40
by: DavidJR |
Looking for Sudan III (Sudan Red) or substitutes...
[rquote=635869&tid=155341&author=Johnny Windchimes]
https://www.scbt.com/p/sudan-iii-85-86- ... |
13-5-2020 at 02:32
by: DavidJR |
Buying chemicals in Poland "OTC"
[rquote=619991&tid=152908&author=mackolol]I'm from Poland and i can recommend you companies ... |
12-5-2020 at 19:30
by: DavidJR |
The smell (?) of dimethyl sulfate
That is concerning...
Also, if you take something out of the fume hood and all of a sudden get an ... |
11-5-2020 at 16:08
by: DavidJR |
Cryo Refrigerated Well ... thingy
[rquote=635756&tid=155364&author=njl]Cryogenic cooling. I remember applied science using a r ... |
11-5-2020 at 16:05
by: DavidJR |
Cryo Refrigerated Well ... thingy
Refrigerated cold trap. |
10-5-2020 at 16:40
by: DavidJR |
Buying chemicals in Poland "OTC"
I think that was a general comment on shipping out of China. |
8-5-2020 at 19:02
by: DavidJR |
Dehydrate aluminum chloride hydrate?
Interesting... However, a more straightforward method of preparing anhydrous AlCl3 is to mix anhydro ... |
8-5-2020 at 18:58
by: DavidJR |
Melgar has died
RIP. Only 37, that is sad. |
5-5-2020 at 07:06
by: DavidJR |
Toluene escaped the bottle - what is the risk?
Yeah, use glass bottles where possible |
5-5-2020 at 01:35
by: DavidJR |
Worried that police are intercepting my packages, worried about knock on door. Or just COVID-19 shipping delays?
[rquote=634695&tid=155244&author=Cou]... or do i need to start mentally preparing for the fa ... |
26-4-2020 at 05:48
by: DavidJR |
N-nitroso-N-methyl-p-toluenesulphonamide
I can smell the cancer from here... |
29-3-2020 at 07:18
by: DavidJR |
Could i use potassium ferricyanide instead of ferrocyanide?
No. |
29-3-2020 at 07:10
by: DavidJR |
heating media's for heat bath ?!
The eutectic mixture of biphenyl and diphenyl ether (aka Dowtherm A) is apparently a useful heat tra ... |
26-3-2020 at 16:48
by: DavidJR |
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