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Synthesis, storage of sodium ethoxide
It's mentioned if not attached in the relevant thread, the long kind of thread where posts are best ... |
20-8-2020 at 13:46
by: S.C. Wack |
Synthesis, storage of sodium ethoxide
Alkali won't play nice with acetone and likely the sieves as well. It's been said for over 15 years ... |
19-8-2020 at 17:47
by: S.C. Wack |
Vacuum pump connections
[rquote=643326&tid=156053&author=monolithic]You would also need the clamp that fits around b ... |
18-8-2020 at 17:25
by: S.C. Wack |
Diethyl Ether - Solution did not Turn Black - SEP Funnel no Separation?
When distilling ether, the condenser and receiver can't be too cold. One is supposed to add water (o ... |
13-8-2020 at 14:55
by: S.C. Wack |
Temperature Difference between Hotplate>Heating Block> Flask
Putting sand in the block, and not heating to 260C at all, much less cooling with a blast of air, ma ... |
13-8-2020 at 14:37
by: S.C. Wack |
Preparation of Mononitrotoluenes (o-, p-)
[rquote=639773&tid=29111&author=sulfuric acid is the king]If we use freezing method, why do ... |
11-8-2020 at 19:37
by: S.C. Wack |
Heavy wall glass
If it doesn't weaken the glass (presumably it does) it says something about the quality. You wouldn' ... |
2-8-2020 at 10:42
by: S.C. Wack |
Can common soda glass bottles be reshaped?
They seemed to be normal bottles reheated enough in the neck to pull quite a ways.
I want to say ... |
1-8-2020 at 18:09
by: S.C. Wack |
Can common soda glass bottles be reshaped?
In the late 70's-early 80's I saw Coke bottles with stretched out necks sold as curios, nicely done ... |
1-8-2020 at 14:30
by: S.C. Wack |
Questions about the Hofmann Rearrangement.
This is why one looks up references; predictably the word methyl doesn't appear in it. The book is i ... |
29-7-2020 at 16:08
by: S.C. Wack |
Dimethyl oxalate synthesis problems
OS also mentions hydrogen chloride, and this is in Brewster et al.'s Unitized Experiments, where HCl ... |
19-7-2020 at 15:10
by: S.C. Wack |
Dimethyl oxalate synthesis problems
[rquote=640983&tid=155810&author=S.C. Wack]The esters are made with distillation and without ... |
18-7-2020 at 06:42
by: S.C. Wack |
Dimethyl oxalate synthesis problems
The esters are made with distillation and without other acids. The simplest explanation for acidic n ... |
17-7-2020 at 13:51
by: S.C. Wack |
High temperature pipe wrapping that is non conductive (electrically)
Ceramic fiber paper |
17-7-2020 at 13:38
by: S.C. Wack |
Vacuum glass implosion?
It's well known that the thicker the glass the more thermal stress. If one has a heat source at say ... |
16-7-2020 at 14:58
by: S.C. Wack |
Vacuum glass implosion?
"Thick walled glassware, such as jars, bottles, cylinders and filter flasks, should never be heated ... |
15-7-2020 at 15:25
by: S.C. Wack |
Extracting Ephedrine from Ma hung tea
[rquote=639898&tid=155652&author=karlos³]Making N-methylalanine from alanine is far from be ... |
14-7-2020 at 20:14
by: S.C. Wack |
Blowing 100k on science equipment
[url=https://www.washingtonpost.com/local/baltimores-community-lab-puts-the-scientific-method-in-the ... |
12-7-2020 at 05:07
by: S.C. Wack |
Identification of sodium peroxide octahydrate?
Shouldn't it be easy to estimate how much is peroxide, hydroxide, and carbonate, without weighing an ... |
29-6-2020 at 15:20
by: S.C. Wack |
Cryo Refrigerated Well ... thingy
[rquote=635838&tid=155364&author=Tdep]Even just to freezing, it would be very convenient to ... |
23-6-2020 at 18:02
by: S.C. Wack |
Cryo Refrigerated Well ... thingy
[rquote=635838&tid=155364&author=Tdep]I'd be very interested in a Peltier cooled flask conta ... |
23-6-2020 at 13:39
by: S.C. Wack |
Disappointing results with 3A molecular sieves
You'll have to do the experiment. Drying is not fast as liquid.
I have to wonder if some of the c ... |
20-6-2020 at 03:45
by: S.C. Wack |
Diethyl ether synthesis, maximum allowed water?
Yes. Some care is taken in many preparations of ethylsulfuric acid, but on the whole it seems resist ... |
8-6-2020 at 02:57
by: S.C. Wack |
mononitrophenols - nitration of phenol
[rquote=637609&tid=155527&author=Fery]The slowness and the biggest problem - the crystalliza ... |
6-6-2020 at 11:49
by: S.C. Wack |
Diethyl ether synthesis, maximum allowed water?
From JACS 35, 794 (1913): "a mixture of 25 cc. each alcohol and sulfuric acid and 100 cc. of water w ... |
5-6-2020 at 18:08
by: S.C. Wack |
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