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What's the cheapest metal powder to make?
[rquote=630446&tid=154806&author=TheMrbunGee][rquote=630444&tid=154806&author=DavidJ ...
5-2-2020 at 12:15
by: DavidJR
Extension of the Eschweiler-Clarke alkylation
I don't see why it wouldn't work with, e.g. acetaldehyde, but I haven't tried it.
5-2-2020 at 07:34
by: DavidJR
BBr3 synthesis
[rquote=630470&tid=154811&author=Tsjerk]Don't start shitty stories again. An inert atmospher ...
3-2-2020 at 16:02
by: DavidJR
BBr3 synthesis
If you have a Schlenk line etc then it's no trouble at all.
3-2-2020 at 15:14
by: DavidJR
Extension of the Eschweiler-Clarke alkylation
What are you trying to achieve? The methyl groups being added to the amine come from the formaldehyd ...
3-2-2020 at 06:47
by: DavidJR
What's the cheapest metal powder to make?
I'm never quite sure where the boundary between soldering, brazing, and welding is...
3-2-2020 at 06:38
by: DavidJR
Preventing peroxide formation in recovered ether
I got BHT from eBay a while ago. I also think that hydroquinone would do the job just fine.
2-2-2020 at 10:03
by: DavidJR
Calibration Weights Classification for Balances
Is there a reason for copy-pasting this here?
1-2-2020 at 18:24
by: DavidJR
Methods for preventing over addition of Grignard reagent
Yes. Cheap magnesium turnings off of eBay are probably literal waste from machining "magnesium" part ...
31-1-2020 at 09:29
by: DavidJR
Methods for preventing over addition of Grignard reagent
Oxidation can be, but purity of the bulk metal cannot.
[Edited on 31-1-2020 by DavidJR]
31-1-2020 at 07:55
by: DavidJR
Acetic anhydride preparation
Ozone + acetylene sounds like a really terrible idea.
31-1-2020 at 07:30
by: DavidJR
Methods for preventing over addition of Grignard reagent
I will add though that good quality (high purity and not oxidised already) magnesium makes a big dif ...
31-1-2020 at 07:21
by: DavidJR
Methods for preventing over addition of Grignard reagent
[rquote=630267&tid=154785&author=AvBaeyer]If you cannot access an inert atmosphere how can y ...
30-1-2020 at 10:01
by: DavidJR
Red Phosphorus Source
[rquote=630182&tid=154598&author=woelen]See here: https://www.thenorthernecho.co.uk/news/102 ...
29-1-2020 at 13:49
by: DavidJR
Methods for preventing over addition of Grignard reagent
Friedel-Crafts acylation seems like the obvious choice for that product.
29-1-2020 at 02:07
by: DavidJR
Methods for preventing over addition of Grignard reagent
This method does not really work, because the reaction of the ketone with the Grignard reagent is mu ...
28-1-2020 at 17:31
by: DavidJR
Graham condenser - explosion hazarded?
Graham condensers are absolutely useless for reflux (and not very good for distillation in most case ...
28-1-2020 at 13:46
by: DavidJR
making CCl4 help
Well, the sun certainly emits UVC but it doesn't reach us because it's absorbed by the atmosphere. I ...
27-1-2020 at 02:48
by: DavidJR
making CCl4 help
[rquote=629950&tid=154769&author=milovess]I really doubt you acomplished anything other than ...
26-1-2020 at 16:03
by: DavidJR
A true implosive
[rquote=629946&tid=154763&author=Simoski]The ignition of hydrogen in air definitely produces ...
24-1-2020 at 15:59
by: DavidJR
making CCl4 help
It's not quite as simple as just bubbling chlorine into chloroform. You need to generate radicals fo ...
24-1-2020 at 15:40
by: DavidJR
Discourse split from Urushibara nickel thread
@stoichiometric_steve I think it's a little harsh to compare me to the nazis. I also object to bei ...
24-1-2020 at 05:59
by: DavidJR
Discourse split from Urushibara nickel thread
@stoichiometric_steve I see you forgot to go through with suing me.
24-1-2020 at 04:55
by: DavidJR
Discourse split from Urushibara nickel thread
I'm not sure why you think it's my job to clean up your indescretions.
23-1-2020 at 12:48
by: DavidJR
Discourse split from Urushibara nickel thread
I don't like it. It brings the amateur chemistry community into disrepute.
23-1-2020 at 12:29
by: DavidJR
[Next Page]
Sciencemadness Discussion Board
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Fundamentals
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» Reagents and Apparatus Acquisition
» Electronics
» Process Engineering
» Materials and Metallurgy
Special Topics
» Analytical Chemistry
» Electrochemistry
» Energetic Materials
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Literature and Documentation
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