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Elemental sulfur from sulfates?
No, it is not like alcohol / vinager, yeast happily grows with our without oxygen but will produce e ... |
12-9-2019 at 03:24
by: Tsjerk |
Elemental sulfur from sulfates?
You don't want to work with sulfate reducing bacteria/archaea... They are facultative anaerobic. If ... |
11-9-2019 at 23:21
by: Tsjerk |
Formaldehyde odor
Are you sure you have paraformaldehyde and not hexamine? |
11-9-2019 at 23:13
by: Tsjerk |
Path to carminic acid
Hydroxide groups are meta/para directors, as all phenols have at least a meta position available I g ... |
11-9-2019 at 23:11
by: Tsjerk |
Path to carminic acid
I've only checked the 1991 synthesis, so I don't know whether different paths have been discovered i ... |
10-9-2019 at 23:43
by: Tsjerk |
Need Help Separating different isomers of Halogenated Benzene Compounds
Strange story about that electrophoresis... Molecules have to be charged to be effected by an electr ... |
10-9-2019 at 08:25
by: Tsjerk |
Potassium oxalate, K2C2O4
Can you check the melting point? Apperantly the anhydrous salt melts at 160 and the monohydraat at 3 ... |
10-9-2019 at 08:19
by: Tsjerk |
Paraformaldehyde from 37% formaldehyde
https://www.sciencedirect.com/science/article/abs/pii/S0255270104002016
Might be helpfull. I have ... |
9-9-2019 at 13:51
by: Tsjerk |
Feasibility of preparing copper phthalocyanine at home
I did something similar to the urea / di-acid in microwave reaction. I don't think there is HCl prod ... |
7-9-2019 at 14:33
by: Tsjerk |
Al catching fire in a cast iron crucible in a kiln?
Doesn't aluminium burn on its own at very high temperatures?
I believe I once saw an aluminum ro ... |
3-9-2019 at 10:23
by: Tsjerk |
I burnt my copper tartrate
Use CaCl2 as dessicator and add methanol or ethanol if needed. CaCl2 will absorb both alcohols and w ... |
1-9-2019 at 07:17
by: Tsjerk |
Dissolving Calcium ammonium nitrate in Ethanol
I would leave the CaCl2 out of the solution and use it as dessicator. You will get the hydrated salt ... |
31-8-2019 at 07:49
by: Tsjerk |
Is it possible to generate electricity from a pH gradient?
Look for the Nernst equation. It is how pH meters work. |
30-8-2019 at 06:58
by: Tsjerk |
Is it possible to generate electricity from a pH gradient?
If you have a semi-permeable membrane it is easy. Bacteria and mitochondria reach 180 mV over their ... |
30-8-2019 at 04:17
by: Tsjerk |
Dissolving Calcium ammonium nitrate in Ethanol
[rquote=621612&tid=153443&author=Kobold vor NH4]@Tsjerk
No, the only things written on bag ... |
30-8-2019 at 04:11
by: Tsjerk |
Dissolving Calcium ammonium nitrate in Ethanol
Do you have the NPK number for your nitrate? And what does it look like? I've seen this name coming ... |
29-8-2019 at 12:50
by: Tsjerk |
Mystery compound, a challenge!
Congrats! Sounds like a likely candidate. Even more so if you can measure the anhydride. |
28-8-2019 at 22:23
by: Tsjerk |
Cody like biosphere
I had three large adult shrimp swimming happily with a bunch off eggs, but the all three died in a c ... |
28-8-2019 at 04:04
by: Tsjerk |
Mystery compound, a challenge!
I did check the chlorsalicylic acid and its reaction with Fe(III) and it indeed forms an intense vio ... |
26-8-2019 at 14:48
by: Tsjerk |
Mystery compound, a challenge!
Good luck! Keep us posted! |
26-8-2019 at 05:29
by: Tsjerk |
Mystery compound, a challenge!
5-Chlorosalicylic-acid? MP 171, soluble in acetic acid (pH<7). The phenol being formed by oxidati ... |
25-8-2019 at 11:27
by: Tsjerk |
Lugdunomycin
The names seem similar, but are different.
about [url=https://en.wikipedia.org/wiki/Staphylococcu ... |
25-8-2019 at 06:09
by: Tsjerk |
Tungsten metal plus piranha solution?
[rquote=621179&tid=153266&author=AJKOER]Per this study https://apps.dtic.mil/dtic/tr/fulltex ... |
24-8-2019 at 06:58
by: Tsjerk |
failiure at nitration, can I recover anything?
That is what you call tar. It might be possible to recover acid from it, but only when you're really ... |
24-8-2019 at 06:54
by: Tsjerk |
Ester headache
There are some esters that will give you a headache while working in a fumehood wearing cloves.
... |
23-8-2019 at 13:53
by: Tsjerk |
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