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What is needed to store synthesised gasses in gas cylinders That guy is asking to be blown up! Hydrogen is no joke, and a "simple refrigerator compressor" certa ... |
11-4-2024 at 15:07 by: Metacelsus |
Experiment with algebraic integers I understand why the points 1, -0.5 + 0.5*sqrt(3) and -0.5 - 0.5*sqrt(3), etc have low density, but ... |
26-2-2024 at 12:25 by: Metacelsus |
Experiment with algebraic integers What are the small black circular regions of lower density?
Grant (3blue1brown) is a super cool g ... |
25-2-2024 at 05:10 by: Metacelsus |
What fire extinguisher is best for a small amature set up? At the beginning of my PhD program all the students got to put out a solvent fire with a CO2 extingu ... |
17-2-2024 at 09:51 by: Metacelsus |
Sodium Nitrite in the news today Well, zoning laws *are* a thing. |
19-12-2023 at 06:13 by: Metacelsus |
Potassium bisulfate ot Potassium sulfate? Why can't you confirm the molarity of the reagents and mix an equimolar amount? This would be much e ... |
18-12-2023 at 07:50 by: Metacelsus |
Sodium Nitrite in the news today I'd bet NaNO2 kills far more people through its use in cured meats (forming carcinogenic nitrosamine ... |
18-12-2023 at 07:48 by: Metacelsus |
Synthesis of Ethyl ß-Naphtholate (Nerolin) This is a bit off topic, but it's my pet peeve when people write ß (the German double S) instead of ... |
30-11-2023 at 06:19 by: Metacelsus |
Anyone go to university chemistry seminars? Or view chem department profiles? [rquote=688762&tid=159978&author=Texium]
Your perspective on the purpose of the seminars is ... |
22-11-2023 at 05:29 by: Metacelsus |
Contaminated 1-indanone sample A vacuum distillation might work if you have the equipment for it. See: https://www.orgsyn.org/demo. ... |
22-11-2023 at 05:25 by: Metacelsus |
Local hardware store good source for free batteries of all types! Lithium ion batteries don't have lithium metal, although you could isolate lithium salts. |
26-10-2023 at 03:59 by: Metacelsus |
The ordeal of my life… and a serious warning to British homechemmers! https://www.bbc.com/news/uk-england-humber-67033545
"Bridlington man Gert Meyers jailed again for ... |
8-10-2023 at 04:23 by: Metacelsus |
Help: Can ETN/PETN 4:6 be poured safely in a vacuum vibration environment? That sounds rather dangerous to me (especially the vibration). If you want to avoid risk you could m ... |
23-9-2023 at 04:08 by: Metacelsus |
Perchloric acid failed synthesis. HELP REQUIRED! Back in the day (~2014) I did a vacuum distillation of HClO4, from NaClO4 and 70% H2SO4. I was targe ... |
21-9-2023 at 04:44 by: Metacelsus |
How to make the air in my lab less oxidizing?? Yeah it's probably some HCl or other halogen-containing gas. In high school I made all my dad's tool ... |
12-8-2023 at 22:27 by: Metacelsus |
Louisville home chemist's house to be burned https://www.lpm.org/news/2023-08-01/louisville-will-burn-down-the-home-of-a-chemist-arrested-for-mak ... |
5-8-2023 at 11:57 by: Metacelsus |
Fluorescence/phosphorescence questions. Check out https://www.fpbase.org/spectra/ and you can see lots of different fluorophores (mostly one ... |
31-7-2023 at 13:03 by: Metacelsus |
Fluorescence/phosphorescence questions. I've used fluorophores excited at 756nm (Cy7). If you take two-photon absorption into account, you c ... |
31-7-2023 at 13:02 by: Metacelsus |
Fluorescence/phosphorescence questions. It's pretty simple if you draw it out a Jabłonski diagram.
Fluorescence is when a singlet excite ... |
30-7-2023 at 03:19 by: Metacelsus |
Your weirdest chemical that's gotten moldy? [rquote=686020&tid=159743&author=unionised]I was always impressed by mould that grows in amm ... |
27-7-2023 at 07:59 by: Metacelsus |
Growing Synthetic Corundums (Ruby) [rquote=685298&tid=159684&author=Pasrules]
Intro:
The plan is to make sapphires for an eng ... |
29-6-2023 at 04:00 by: Metacelsus |
Decomposing methyl iodide Yes, add it to ammonia. This is also how I got rid of dimethyl sulfate back when I was using it in m ... |
14-6-2023 at 06:23 by: Metacelsus |
worst stench In undergrad I made quite a few batches of 3,5-dithiahepta-1,6-diyne. Basically https://en.wikipedia ... |
5-2-2023 at 09:20 by: Metacelsus |
H2 trap Yeah, HCl fumes/aerosol will cause tons of rust on any iron or steel, you should really do it outsid ... |
20-11-2022 at 16:30 by: Metacelsus |
RGA as Mass spectrometer [rquote=678568&tid=159081&author=neptunium]=
One thing I didn`t mentioned yet but will cove ... |
17-11-2022 at 04:49 by: Metacelsus |
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