Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Search
[Next Page]
Reverse osmosis through shirt fabric?
The idea behind osmosis is a bit different and a bit more complicated than only pore size.

Osmosi ...
25-2-2020 at 02:23
by: Tsjerk
Deprotection of N-benzyl piperidine compound
Strange.. Do you have some compound you can test the Pd on?
25-2-2020 at 00:58
by: Tsjerk
Lead distillation
[rquote=631541&tid=154913&author=unionised]It's perfectly possible to make low-background st ...
24-2-2020 at 08:12
by: Tsjerk
Lead distillation
I really hope [url=https://www.theguardian.com/world/ng-interactive/2017/nov/03/worlds-biggest-grave ...
24-2-2020 at 06:30
by: Tsjerk
Deprotection of N-benzyl piperidine compound
You never mentioned that N-phenethyl-4-piperidone is restricted in your area. You neither mentioned ...
24-2-2020 at 06:16
by: Tsjerk
Deprotection of N-benzyl piperidine compound
Why don't you protect the piperidone directly with 2-phenyl ethylbromide? Then you don't have to dep ...
24-2-2020 at 02:58
by: Tsjerk
My piperine extraction setup without soxhlet extractor
Nice work! How does your extract look? What color and is it crystalline? Did you use black pepper?
24-2-2020 at 02:32
by: Tsjerk
Speeding up Al+MnCl2 reaction
A drop of HCl could help
23-2-2020 at 08:51
by: Tsjerk
Fusion breakthrough claimed
[rquote=631478&tid=154920&author=fusso][rquote=631476&tid=154920&author=j_sum1]I loo ...
23-2-2020 at 07:50
by: Tsjerk
Secondary/booster synthesis
Please be careful with melting ETN. First of all there is no need to melt, second molten ETN is as s ...
23-2-2020 at 04:59
by: Tsjerk
RBF heating blocks for hot plates
Liquid Gallium is a PITA, I have a sample that once liquefied during the summer, the plastic contain ...
23-2-2020 at 03:24
by: Tsjerk
ETN(X) with NHN Plastic
The problem with energetics is that one failure will cost you a limb. Or two. The way you hold the 8 ...
22-2-2020 at 06:41
by: Tsjerk
Lead distillation
Better oxidize the lead into solution and reduce it back into metal on a electrode. Cheaper and easi ...
22-2-2020 at 05:18
by: Tsjerk
Dean Stark without Dean Stark.... almost quantitative
I'm pretty sure this can be applied to other reactions which ask for a Dean Stark. It should at leas ...
22-2-2020 at 05:07
by: Tsjerk
Dean Stark without Dean Stark.... almost quantitative
I tried to use a Dean Stark preparation to prepare the diketal of cyclopentanone with ethylene glyco ...
22-2-2020 at 04:22
by: Tsjerk
is there any way to make antimony trioxide from antimony solutions
Yes, I suggest you utfse.

Google: antimony oxide preperation.

First hit.
21-2-2020 at 07:27
by: Tsjerk
Methods for preventing over addition of Grignard reagent
How do you prepare the Grignard? With turnings it is already hard to reflux all ether sometimes.
21-2-2020 at 03:59
by: Tsjerk
ethyl hexanoate - pineapple ester
What is the % yield? I'm interested because you do specify the 3x molar excess.
20-2-2020 at 10:59
by: Tsjerk
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
The black tar was separated with the sulfuric acid layer before I added EG and cyclopentanone. After ...
17-2-2020 at 04:26
by: Tsjerk
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
Thank you for the reaction! Did you run the tosylic acid preparation yourself with pure toluene? I w ...
16-2-2020 at 12:16
by: Tsjerk
Everyday Chemistry
Does anyone have data about the temperature where CaCl2 starts to lose methanol / ethanol as adduct? ...
15-2-2020 at 22:22
by: Tsjerk
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
[rquote=631111&tid=154884&author=Dr.Bob]For most cases of the first step, you could simply s ...
15-2-2020 at 22:08
by: Tsjerk
Everyday Chemistry
Nice synth! I just saw the monohydrate of CaCl2 only loses water at 260 degrees and the dihydrate at ...
15-2-2020 at 11:49
by: Tsjerk
Make Potassium (from versuchschemie.de)
A catalyst boiling well below the reaction temperature in a liquid reaction is probably not a very g ...
15-2-2020 at 10:07
by: Tsjerk
Cubane; Dimethyl Cubane-1,4-dicarboxylate synthesis
The next step is the bromination of the diketal with 1,4-dioxane.Br2. I'm looking forward to receive ...
15-2-2020 at 04:35
by: Tsjerk
[Next Page]

  Go To Top