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Question about Grignard reaction
You can put a solution of CaCl2 in your freezer, this will stay liquid but will be as cold as your f ... |
29-12-2021 at 00:53
by: Tsjerk |
A possible fraud!
How did the person pouring the silver charge you? By the volume of your piece?
How much did he ch ... |
27-12-2021 at 11:37
by: Tsjerk |
Questions about piranha solution.
[rquote=669273&tid=158173&author=cycloknight19]I just had a thought. Can piranha solution us ... |
27-12-2021 at 11:32
by: Tsjerk |
Separation of toluene and isobutanol
I understood you wrong because you suggested adding sulfuric acid to the mix, not to the purified to ... |
26-12-2021 at 13:52
by: Tsjerk |
Separation of toluene and isobutanol
Even if you could hydrolyse the pTsOH efficiently, you would need about a gram of sulfuric acid for ... |
25-12-2021 at 13:20
by: Tsjerk |
Deploying an Impractical HE By In Situ Preparation, Pros and Cons
So, if I would want to walk into your sensitive mine field, I could just throw in a large firecracke ... |
23-12-2021 at 22:42
by: Tsjerk |
Stainless steel solvent still?
With SS you just have to be careful with chloride in combination with acid. |
20-12-2021 at 02:57
by: Tsjerk |
How bad is the smell of thiols?
[rquote=668902&tid=158198&author=theAngryLittleBunny]
I don't need the free thiol, I need i ... |
19-12-2021 at 11:31
by: Tsjerk |
How bad is the smell of thiols?
I could be a bit off, but a quick calculation tells me 1 gram ethanthiol can be smelled in an area o ... |
19-12-2021 at 05:13
by: Tsjerk |
anti "spam-bot" Bot?
I'm pretty sure that when the registration would be opened again the boys would be back in an hour h ... |
18-12-2021 at 10:48
by: Tsjerk |
anti "spam-bot" Bot?
No  I was talking about some bots, just a couple of them, which registered here
on SM. They spamme ... |
17-12-2021 at 13:29
by: Tsjerk |
anti "spam-bot" Bot?
I saw a couple of them here literally registered that day, one a couple weeks ago and one longer ago ... |
17-12-2021 at 12:34
by: Tsjerk |
anti "spam-bot" Bot?
Really, everyone, please stop thinking about hacking scripts into the forums code, training AI, migr ... |
17-12-2021 at 10:29
by: Tsjerk |
anti "spam-bot" Bot?
I implemented reCaptcha v3 on my employers website, on a request form to be precise. Version 3 works ... |
17-12-2021 at 09:24
by: Tsjerk |
anti "spam-bot" Bot?
[rquote=668791&tid=158192&author=Ubya]
Yeah this would solve the issue at its core, even th ... |
17-12-2021 at 05:06
by: Tsjerk |
anti "spam-bot" Bot?
There is a much, much simpler solution. There has been an update for XMB board 1.9.11, namely 1.9.12 ... |
16-12-2021 at 23:01
by: Tsjerk |
Drying agent- which one to choose?
Magnesium is also easily activated by stirring for a minute or so in 1% HCl. |
16-12-2021 at 12:26
by: Tsjerk |
How to remove these incrustations? Cleaning a GPU heatsink
[rquote=668763&tid=158185&author=Twospoons]The problem with any chemical cleaning method is ... |
16-12-2021 at 12:04
by: Tsjerk |
How to remove these incrustations? Cleaning a GPU heatsink
Yes, and it will eat through the aluminium like a it's cotton candy. Probably before it does anythin ... |
16-12-2021 at 08:35
by: Tsjerk |
Chemistry to do with thymol
Saccharine can be converted to o-sulphobenzoic anhydride by heating it in sulfuric acid, which can b ... |
15-12-2021 at 13:32
by: Tsjerk |
Toluenesulfonic acid and Sulfonic acids in genera
A Dean Stark with toluene will indeed work. The water is so tightly bound it is like a salt; TsO- an ... |
14-12-2021 at 23:11
by: Tsjerk |
How to remove these incrustations? Cleaning a GPU heatsink
Aluminium is going to be difficult, whatever dissolves the oxide dissolves the aluminium faster. I t ... |
14-12-2021 at 11:23
by: Tsjerk |
Bromo-DDT, p,p-dibromo-diphenyl-1,1,1-trichloro-ethane
Cool, I actually wanted to ask you if you have chlorobenzene, but straight DDT would be even better. ... |
14-12-2021 at 11:01
by: Tsjerk |
Bromo-DDT, p,p-dibromo-diphenyl-1,1,1-trichloro-ethane
I forgot about you telling about the fluorobenzene, but I was ordering some other stuff from S3 chem ... |
13-12-2021 at 23:21
by: Tsjerk |
Chemistry to do with thymol
I ordered phthalic anhydride, aniline and toluidine. |
13-12-2021 at 13:58
by: Tsjerk |
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