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Building an Analytical System for Plant Alkaloids
Try a pair of old PC speakers. Their power supply gives 9 V (or 12 V, depending on the model), and y ... |
24-7-2024 at 09:36
by: bnull |
Purifying methylamine HCl from a solution with excess HCl
As far as I remember, methylamine hydrochloride doesn't char. Try vacuum distillation. The worst tha ... |
24-7-2024 at 07:03
by: bnull |
Melting tellurium powder
[rquote=694279&tid=160037&author=EF2000]Another scary thing comes to mind: Can it be absorbe ... |
23-7-2024 at 06:34
by: bnull |
OTC polymers
Glyceryl triacetate is a plasticiser that is also used as food additive, hence OTC.
As said above ... |
23-7-2024 at 06:24
by: bnull |
Building an Analytical System for Plant Alkaloids
It was an idea.  |
19-7-2024 at 14:53
by: bnull |
Building an Analytical System for Plant Alkaloids
Try sandpaper. It sounds ridiculous, but here it is: make small disks from sandpaper, attach them to ... |
18-7-2024 at 17:00
by: bnull |
Concentrating sulfuric acid by freezing
It seems it depends on the initial concentration, if I'm not misinterpreting the phase diagram on pa ... |
17-7-2024 at 17:40
by: bnull |
synthesis of 2,3,5-trimethyl-4-aminophenol
[rquote=694205&tid=160420&author=photosyn]I think drying under vacuum would minimize oxidati ... |
17-7-2024 at 05:02
by: bnull |
Electroplating of Nickel, waterless / organic solvent / possibly ionic liquids.
[rquote=694211&tid=159974&author=semiconductive]I'm writing some software to filter the data ... |
17-7-2024 at 04:41
by: bnull |
Ika cmag hs7 fried circuit
Yes, it is a little more involved than desoldering and substituting stuff. For the money you'd be ab ... |
15-7-2024 at 11:43
by: bnull |
Glucic acid (tartronaldehyde)?
Try Google Scholar. The first paper that comes under "glucic acid" (with the quotation marks, otherw ... |
14-7-2024 at 11:51
by: bnull |
synthesis of 2,3,5-trimethyl-4-aminophenol
I forgot to check [i]March's Advanced Organic Chemistry[/i] 7th Edition[sup]*[/sup]. On pages 788-79 ... |
13-7-2024 at 06:06
by: bnull |
Is urea hydrochloride adduct real?
More stuff:[list]
[*][url=https://webbook.nist.gov/cgi/cbook.cgi?Scan=cob3653&Type=IR]IR spectr ... |
11-7-2024 at 14:21
by: bnull |
synthesis of 2,3,5-trimethyl-4-aminophenol
[rquote=694110&tid=160420&author=photosyn]When the OrgSyn website says the "solution of the ... |
10-7-2024 at 06:49
by: bnull |
Ika cmag hs7 fried circuit
[rquote=694120&tid=160386&author=Cendre]Edit 2: looks like that transformer is “obsolete a ... |
10-7-2024 at 06:24
by: bnull |
Ika cmag hs7 fried circuit
Unplug the black cables from the motor, test for continuity, measure resistance and then plug the wi ... |
10-7-2024 at 04:11
by: bnull |
Ika cmag hs7 fried circuit
Thank you very much. According to the picture at the bottom left, it is an [url=https://www.eratrans ... |
9-7-2024 at 16:26
by: bnull |
Ika cmag hs7 fried circuit
[rquote=694102&tid=160386&author=Cendre]So the blue transformer is 25mm high but 28mm if you ... |
9-7-2024 at 12:03
by: bnull |
Ika cmag hs7 fried circuit
Test the resistance of the transformer with the unit disconnected, as @Sulaiman suggested. Maybe the ... |
9-7-2024 at 09:58
by: bnull |
Ika cmag hs7 fried circuit
Latched on means it is stuck on the ON and never goes OFF. Instead of a mechanical switch like those ... |
9-7-2024 at 09:26
by: bnull |
Ika cmag hs7 fried circuit
@Sulaiman: That "briefly" is what worries me. It may have been brief enough to ruin the microcontrol ... |
9-7-2024 at 09:14
by: bnull |
Electroplating of Nickel, waterless / organic solvent / possibly ionic liquids.
[quote]If it did react with electrodes, the obvious product would be copper citrate dissolved in mol ... |
8-7-2024 at 15:18
by: bnull |
synthesis of 2,3,5-trimethyl-4-aminophenol
Strange. And it is even more concentrated than Fieser's. Supersaturated perhaps? |
8-7-2024 at 14:11
by: bnull |
synthesis of 2,3,5-trimethyl-4-aminophenol
From Vogel's Textbook of Practical Organic Chemistry (p. 591):[quote]Solid diazonium salts are [u]ve ... |
8-7-2024 at 10:59
by: bnull |
synthesis of 2,3,5-trimethyl-4-aminophenol
Welcome to the forum.
[rquote=694049&tid=160420&author=photosyn]I'm fairly sure the refer ... |
8-7-2024 at 07:09
by: bnull |
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