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Alternative piston shapes in engines?
The friction increases broadly in line with the length of the perimeter.
Also a round piston won't ... |
28-2-2024 at 06:08
by: unionised |
How hazardous is fluorine chemistry?
[rquote=691000&tid=160167&author=clearly_not_atara] It's also technically not a fluoroethyl ... |
18-2-2024 at 03:40
by: unionised |
Breaking azeotropes
In principle, you can break any azeotrope by redistilling at a different pressure.
https://www.chem ... |
17-2-2024 at 14:22
by: unionised |
How hazardous is fluorine chemistry?
[rquote=690923&tid=160167&author=clearly_not_atara]
I have considered the preparation o ... |
16-2-2024 at 07:17
by: unionised |
Peroxide prevention in ethers
The classic solution to the problem was to store the ether over copper gauze.
Storage over sodium ... |
13-2-2024 at 05:25
by: unionised |
Synthesis of Chloroacetic acid
It will probably work - at least a bit.
The interesting question is what plans do you have for trap ... |
30-1-2024 at 06:08
by: unionised |
Preparation of Hydrogen Cyanide
Everyone knows that HCN is very toxic.
Not many people realise it's explosive.
https://www.ichem ... |
23-1-2024 at 05:17
by: unionised |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
[rquote=690307&tid=160113&author=Tsjerk][rquote=690282&tid=160113&author=unionised][ ... |
21-1-2024 at 03:25
by: unionised |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
[rquote=690280&tid=160113&author=bnull]If it's just for the sake of doing it, you could tr ... |
19-1-2024 at 09:35
by: unionised |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
[rquote=690275&tid=160113&author=Sir_Gawain]Also, highly concentrated hydrogen peroxide oxid ... |
19-1-2024 at 09:32
by: unionised |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
I'm not really advocating this but...
If I got some "percarbonate" solution and neutralised it with ... |
19-1-2024 at 04:59
by: unionised |
Anthraquinone preparations
Have you seen this?
https://pubs.acs.org/doi/pdf/10.1021/ja01856a504
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18-1-2024 at 15:43
by: unionised |
Destroying Chlorpyriphos
How quickly is it hydrolysed in alkaline conditions?
I have seen reports of a half life of 16 days ... |
4-1-2024 at 06:27
by: unionised |
Recrystallisation question - help me design an experiment for junior students
[rquote=689855&tid=160082&author=Sir_Gawain]What about copper sulfate and sodium chloride? S ... |
4-1-2024 at 05:24
by: unionised |
Disinfection of rainwater
[rquote=689859&tid=159949&author=SnailsAttack]
...
Secondly, with no added disinfect ... |
4-1-2024 at 05:13
by: unionised |
Sodium Nitrite in the news today
Americans will ban anything lethal- except guns. |
18-12-2023 at 01:08
by: unionised |
UK: Hydrochloric acid, phosphoric acid, and hexamine now restricted/banned!
If I was a shop, I'd think really hard about not stocking formaldehyde- just to save myself paperwor ... |
14-12-2023 at 05:50
by: unionised |
UK: Hydrochloric acid, phosphoric acid, and hexamine now restricted/banned!
Re. "
As for hexamine, this can of course be made from ammonia and formaldehyde."
Only if you can ... |
14-12-2023 at 05:29
by: unionised |
New Europium complex?
The stuff was stable enough to prepare Langmuir Blodget films of it by floating it on the surface of ... |
4-12-2023 at 12:41
by: unionised |
New Europium complex?
I don't know if it's "new" or not, but it reminded me of my last year as a student making hexadecylp ... |
4-12-2023 at 05:57
by: unionised |
Puriying Sodium Silicate
In principle, you can purify this stuff by crystallisation.
https://en.wikipedia.org/wiki/Sodium_me ... |
2-12-2023 at 03:46
by: unionised |
Beginner question about AN
I'm worried about providing advice about explosives to anyone who thinks that communism is happenin ... |
2-12-2023 at 03:25
by: unionised |
Koh and dcm
Formaldehyde is not stable in the presence of NaOH
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1-12-2023 at 16:32
by: unionised |
UV-Vis spectrometer
The big problem (in my experience) for organics with UV is that, unless it's connected to the end of ... |
1-12-2023 at 09:05
by: unionised |
Alternative catalyst for oxidation of SO2 to SO3 (first post here btw)
This might be interesting.
https://pubs.acs.org/doi/10.1021/ed076p958 |
24-11-2023 at 08:10
by: unionised |
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