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Oxalyl Chloride Challenge
My guess is that it would not be unwise to use an inexpensive, disposable reactor when heating anhyd ... |
7-7-2021 at 19:02
by: S.C. Wack |
New chemical restrictions in Canada?
[rquote=662524&tid=157676&author=Fyndium]Acetone was to be restricted when bought in bigger ... |
6-7-2021 at 15:12
by: S.C. Wack |
Making alcohol solutions of hydrazine.
Where has hydrazine sulfate been used in this way in the past 130 years?
If something is insolubl ... |
2-7-2021 at 17:35
by: S.C. Wack |
Extraction of gallic acid
...a fluid ounce doesn't weigh an ounce in the US, like a gallon of water here doesn't weigh 10 poun ... |
2-7-2021 at 16:58
by: S.C. Wack |
Making alcohol solutions of hydrazine.
Weird how no one else seems to have heard the news. |
2-7-2021 at 14:37
by: S.C. Wack |
Extraction of gallic acid
FWIW I've been reading some old books on tanning...they say galls without a bug still in them are wo ... |
2-7-2021 at 14:15
by: S.C. Wack |
Making alcohol solutions of hydrazine.
It seems more likely to be less convenient than that. IIRC the original preparation of anhydrous hyd ... |
2-7-2021 at 13:35
by: S.C. Wack |
Preparation of NaH from sodium metal.
It's a sign that beta-hydride elimination is a deep organometallic rabbit hole. |
29-6-2021 at 14:16
by: S.C. Wack |
recovery of iodine from residues
[rquote=662250&tid=157638&author=draculic acid69]Perhaps the alcohol is causing the problem. ... |
28-6-2021 at 19:22
by: S.C. Wack |
foaming Borax!
Carbonic acid. Perhaps dry CO2 would have no effect. What about borax from the mine, one might ask. ... |
28-6-2021 at 14:25
by: S.C. Wack |
Is there anything interesting I can do with Urea?
Vogel's is from OS, who in CV2 pg 60 mention other methods, all from urea.
[rquote=662252&tid ... |
28-6-2021 at 14:07
by: S.C. Wack |
Preparation of NaH from sodium metal.
[rquote=662260&tid=157640&author=draculic acid69]I think that Li reacts with the H2 around 6 ... |
28-6-2021 at 13:46
by: S.C. Wack |
foaming Borax!
It runs away from fire. If one heats it at the bottom of a crucible, the bottom will soon have no bo ... |
27-6-2021 at 12:48
by: S.C. Wack |
Preparation of NaH from sodium metal.
Read the literature, room temp in this case US3617218 and the JACS article from the same authors...
... |
26-6-2021 at 12:48
by: S.C. Wack |
What are most dangerous toxic chemicals you are comfortable handling in your home lab?
[rquote=652342&tid=156632&author=roXefeller]It looks like he probably unpacked some chemical ... |
26-6-2021 at 12:11
by: S.C. Wack |
Chloroform woes
Having done this reaction (and many others) every which way, I suggest sticking to the script writte ... |
22-6-2021 at 15:39
by: S.C. Wack |
Chemical Resistant Vacuum Tubing?
Glass. Perhaps the inside of other tube can be coated with something.
The best plan would be trap ... |
21-6-2021 at 14:40
by: S.C. Wack |
Chloroform woes
[rquote=661936&tid=157619&author=Keras]I was thinking about adding solid table salt, or a sa ... |
21-6-2021 at 14:29
by: S.C. Wack |
Reaction between Potassium Bromate and sulfuric acid?
There is no visible reaction of any kind without heating between the practical grade Na salt and tec ... |
21-6-2021 at 14:00
by: S.C. Wack |
Chloroform woes
One could shake with a saturated solution of bisulfite and see what happens. The solubility of chlor ... |
20-6-2021 at 11:21
by: S.C. Wack |
Is there anything interesting I can do with Urea?
"It is said that" would have been the better choice for my wording.
https://www.sciencemadness.org/ ... |
20-6-2021 at 11:04
by: S.C. Wack |
How to get Hydrobromic acid (HBr) from Br2
HBr can be made with sulfuric acid if the acid is not concentrated and the addition to KBr does not ... |
19-6-2021 at 19:11
by: S.C. Wack |
What does "drying over" some desiccant mean?
It's always obvious, thus no explanations. |
19-6-2021 at 19:04
by: S.C. Wack |
Derivatising p-dichlorobenzene through its nitro compound
[rquote=661890&tid=156633&author=Boffis]Another thing that worries me about sodium dithionit ... |
19-6-2021 at 15:22
by: S.C. Wack |
Is there anything interesting I can do with Urea?
AFAIK the usual directions (Vogel 3rd) either do not scale well or need improvement, and the method ... |
17-6-2021 at 18:00
by: S.C. Wack |
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