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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 |
sassafras extraction from roots - anyone have experience or know yeilds?
[rquote=636582&tid=155428&author=RogueRose]Piperonal comes from peppers, correct?[/rquote]
... |
21-5-2020 at 13:58
by: S.C. Wack |
sassafras extraction from roots - anyone have experience or know yeilds?
[rquote=636489&tid=155428&author=karlos³]Pretty cool, I wish sassafras would grow here in e ... |
20-5-2020 at 18:54
by: S.C. Wack |
Thoughts and observations relating to a cheap Vigreux column and condenser
Vacuum.
[rquote=636060&tid=155393&author=SWIM]I've seen claims of 1 plate per 100 mm[/rqu ... |
14-5-2020 at 15:43
by: S.C. Wack |
CBD THC extraction
Static may be underappreciated.
Have you seen pictures of CO2 extract compared to butane? Have you ... |
10-5-2020 at 12:58
by: S.C. Wack |
Using Palladium on carbon
Obviously one could buy both hydride and Pd and use the hydride to make the catalyst.
If one want ... |
10-5-2020 at 12:50
by: S.C. Wack |
Nickel carbonate from Canadian nickels
51-54 were steel. Not others until 99. |
10-5-2020 at 12:32
by: S.C. Wack |
Oxidation of Styrene
Ether is involved, your reference has nothing to do with this, and the correct reference is Tiffenea ... |
9-5-2020 at 14:49
by: S.C. Wack |
Anthranilic acid preparation(questions)
[rquote=635649&tid=155329&author=B.D.E]what is "point 1"(I have more than one guess).[/rquot ... |
9-5-2020 at 13:51
by: S.C. Wack |
Anthranilic acid preparation(questions)
BTW Vogel uses hypobromite (also Henle, via Weygand), with disagreement with the point 1 at the top ... |
9-5-2020 at 09:06
by: S.C. Wack |
Anthranilic acid preparation(questions)
[rquote=635462&tid=155329&author=mackolol]I noticed, that if NaOH solution is too cold, phth ... |
7-5-2020 at 14:50
by: S.C. Wack |
Wanna confirm the procedure for making ammonium permanganate?
A short alternate plan (using the chloride) is in my scan of Schlessinger. |
5-5-2020 at 13:46
by: S.C. Wack |
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