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Synthesis of DDT?
I have been posting about bromo, chloro and fluoro DDT around here some years ago. Isopropanol re-cr ... |
25-3-2024 at 11:54
by: Tsjerk |
URGENT - To Vesp
I know, just joking. Now just hope Vesp shows up any time soon!
@Antigua: it sucks to be the one ... |
9-2-2024 at 11:09
by: Tsjerk |
URGENT - To Vesp
[rquote=690773&tid=160159&author=Antigua]
At least during the downtime, no bots will be s ... |
9-2-2024 at 07:15
by: Tsjerk |
Nitric acid bottles growing exterior crystals?
I just noticed my bottle of 96% sulfuric acid is 'sweating'. The bottle is in a cupboard in a unheat ... |
3-2-2024 at 08:26
by: Tsjerk |
Precipitation of proteins from expired milk
What can you use these denatured proteins for?
I guess they are insoluble?
[Edited on 28-1-2024 ... |
27-1-2024 at 16:07
by: Tsjerk |
Preparation of Hydrogen Cyanide
That demo with your finger,  , I love it.
[rquote=690410&tid=160124&author=Pok]
Under ... |
24-1-2024 at 11:28
by: Tsjerk |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
Or just destroy the carbonate, in very little water. Giving concentrated peroxide, as discussed. |
23-1-2024 at 12:54
by: Tsjerk |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
[rquote=690386&tid=160113&author=bnull]
You can remove most of the of the salts (sodium ... |
23-1-2024 at 05:45
by: Tsjerk |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
[rquote=690321&tid=160113&author=unionised]
Sodium sulphate forms a set of hydrates.
I sus ... |
22-1-2024 at 04:23
by: Tsjerk |
Can hydrogen peroxide be vacuum distilled straight from sodium percarbonate?
[rquote=690282&tid=160113&author=unionised][rquote=690275&tid=160113&author=Sir_Gawa ... |
20-1-2024 at 09:16
by: Tsjerk |
Catalysts for NaNO3 black powder?
Put it in a vacuum desiccator over something more hygroscopic than NaNO3, and over a lot more than t ... |
7-1-2024 at 10:38
by: Tsjerk |
Disposing of Tollen's Reagent After Silver Mirror Reaction
The cleaner the glass to begin with, the better the attachment of the silver. You could for example ... |
17-12-2023 at 02:14
by: Tsjerk |
Off-topic conjecture split from "A foray into phenethylamines of the Shulgin kind"
Don't you think that will just hydrolyze into the phenolate? |
12-12-2023 at 04:09
by: Tsjerk |
Speed of C programs, relative to Java
Are you promoting a lot of int to long? That takes a lot of time, that might be optimized by startin ... |
11-12-2023 at 05:23
by: Tsjerk |
API content determination via titration
Depends on what else is in those pills |
27-11-2023 at 04:17
by: Tsjerk |
Thietane synthesis, a goofy looking compound
Boiling point of 94 degrees? You could question how this was measured, but this sounds quite definit ... |
25-11-2023 at 11:25
by: Tsjerk |
Sulfuric acid purification problems
[rquote=688617&tid=159968&author=Sir_Gawain][rquote=688614&tid=159968&author=Rainwat ... |
16-11-2023 at 07:39
by: Tsjerk |
Video on how to make gold nanoparticles
Wooow! He needs 15-20% less colloidals in his body, so it must be doing something right? Totally mak ... |
11-11-2023 at 13:56
by: Tsjerk |
Why do we need so many elements (and energy) ?
Have a look [url=https://www.cbs.nl/nl-nl/nieuws/2023/41/energieverbruik-per-inwoner-terug-op-niveau ... |
9-11-2023 at 00:45
by: Tsjerk |
Disinfection of rainwater
Mats of bacteria in rainwater? Are you sure your collection vessel was clean? Maybe sterilise everyt ... |
4-11-2023 at 06:43
by: Tsjerk |
Help with calculations for copper plating solution
If you dont have a scale that can do a certain small amount, do it in two, three or more steps. For ... |
25-10-2023 at 01:43
by: Tsjerk |
testing for ammonium nitrate & nitrogen content
If urea nitrate is poorly soluble, couldn't you use for example sodium nitrate and hydrochloric acid ... |
19-10-2023 at 19:38
by: Tsjerk |
Why do we need so many elements (and energy) ?
There was just a report from our national statisticians (CBS) that per person the energy consumption ... |
13-10-2023 at 22:28
by: Tsjerk |
The logic behind symbols of chemical elements ?
Well, the periodic table is an universal system, not an English one.
[Edited on 12-10-2023 by Tsjer ... |
11-10-2023 at 20:35
by: Tsjerk |
Unconventional Shaped Charges
Do you have a link to the process you used? |
11-10-2023 at 06:59
by: Tsjerk |
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