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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=karlosĀ³]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
Silica gel mystery?
BTW Ullmann's suggests that silica gel made as it was 100 years ago (no special processing) has a po ...
31-5-2020 at 15:47
by: S.C. Wack
Preparation of Sodium Iodate
Good to see someone experimenting and reading my scans for a change, but it should be noted that the ...
30-5-2020 at 15:42
by: S.C. Wack
Silver and Copper Cyanide from Potassium Ferrocyanide
Was there any distillation of that?

Has anyone compared their cyanide from ferrocyanide to cyanid ...
24-5-2020 at 12:15
by: S.C. Wack
Silver and Copper Cyanide from Potassium Ferrocyanide
Has anyone considered that the precipitate is cuprous ferrocyanide when white (and the basis for Wil ...
23-5-2020 at 16:04
by: S.C. Wack
ethyl formate - esterification by reactive distillation
[rquote=215502&tid=16950&author=turd]Check out: E. C. Wagner, Journal of Chemical Education, ...
22-5-2020 at 13:05
by: S.C. Wack
sassafras extraction from roots - anyone have experience or know yeilds?
There might be some perfume with piperonal in it, and it used to be available for this in more and m ...
21-5-2020 at 17:04
by: S.C. Wack
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