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Blanc Chloromethylation of thiophene to 2-(chloromethyl)thiophene
Indeed it is possible, just quick search took me to [url=https://patents.google.com/patent/US7462725 ... |
3-6-2023 at 12:08
by: nimgoldman |
*Anhydrous* Zinc Chloride in Concentrated HCl?
[quote]What does work, however, is that HCl (g) may be added to a solution of ZnCl2[/quote]
I see ... |
6-5-2023 at 14:57
by: nimgoldman |
*Anhydrous* Zinc Chloride in Concentrated HCl?
I understand that [b]anhydrous[/b] zinc chloride is a Lewis acid and as such can only work in anhydr ... |
6-5-2023 at 06:46
by: nimgoldman |
Maleic Acid by Dehydration of Malic Acid ?
[quote]
Have you any experience with ozonolysis? That would be the more difficult part of this proc ... |
6-5-2023 at 06:04
by: nimgoldman |
Maleic Acid by Dehydration of Malic Acid ?
Okay I've finally found the answer in [b][1][/b]. I've look in the index term "malic acid" and bingo ... |
2-5-2023 at 10:39
by: nimgoldman |
Iron(II) sulfate monohydrate from eBay - looks suspicious
[rquote=681018&tid=55188&author=chloric1]I have purchased “copperas” from a fertilizer c ... |
31-1-2023 at 07:29
by: nimgoldman |
Iron(II) sulfate monohydrate from eBay - looks suspicious
I also tried recovering old iron(II) sulfate (technical-grade), which was considerably oxidized. Her ... |
30-1-2023 at 07:22
by: nimgoldman |
Moisture-preserving desiccant for storing borax primary standard
I see.
Using NaBr as an alternative then makes sense as the saturated solution gives 58% r.h.
... |
24-10-2022 at 14:42
by: nimgoldman |
Moisture-preserving desiccant for storing borax primary standard
I am purifying some borax decahydrate to be used as a primary standard for acid-base titrations.
... |
24-10-2022 at 09:43
by: nimgoldman |
Ferricyanide reduction to Ferrocyanide?
Ferricyanide can be reduced to ferrocyanide with e.g. ascorbic acid [b][1][/b].
Other suitable re ... |
12-11-2021 at 16:07
by: nimgoldman |
THIS WILL BE ILLEGAL IN FEBURARY 2021 (EU)
In my country, businesses were already closed for they were selling growing supplies that *could* be ... |
17-2-2021 at 04:51
by: nimgoldman |
THIS WILL BE ILLEGAL IN FEBURARY 2021 (EU)
The problem is you have to provide reason for why you need that certain chemical for your business.
... |
16-2-2021 at 00:02
by: nimgoldman |
THIS WILL BE ILLEGAL IN FEBURARY 2021 (EU)
As for the sulfuric, what about [b]Cleamen 420[/b] ? That is basically 96-98% H2SO4. Will the compan ... |
15-2-2021 at 07:13
by: nimgoldman |
Removing denaturing agents from alcohol
Just to note - producing pure ethanol from vodka or sugar wash is a different story than recycling u ... |
9-6-2020 at 14:39
by: nimgoldman |
Drying IPA - easiest method
Sorry for bumping the thread, I wanted to clarify how much salt is actually needed...
Assume 1 00 ... |
9-6-2020 at 14:26
by: nimgoldman |
Removing denaturing agents from alcohol
Small amounts of ethanol can be purified via ester formation, purifying the ester, then hydrolyzing ... |
29-5-2020 at 23:00
by: nimgoldman |
Removing MeNO2/EtNO2 contamination in MeOH/EtOH
No I definitely never distill to dryness.
Actually I first neutralize any residual base (after th ... |
16-5-2020 at 17:33
by: nimgoldman |
Removing MeNO2/EtNO2 contamination in MeOH/EtOH
I have several liters of methanol and ethanol, likely contaminated with nitromethane/nitroethane.
... |
16-5-2020 at 13:02
by: nimgoldman |
Looking for Sudan III (Sudan Red) or substitutes...
Unfortunately, I am from EU and eBay does not show any results from nearbly - it's either from US, s ... |
12-5-2020 at 07:29
by: nimgoldman |
Looking for Sudan III (Sudan Red) or substitutes...
I am looking for Sudan III dye to use it as indicator in ozonolysis.
I could only find Sudan IV, ... |
8-5-2020 at 07:02
by: nimgoldman |
Maleic Acid by Dehydration of Malic Acid ?
You can definitely make fumaric acid from maleic (see [url=https://en.wikipedia.org/wiki/Maleic_acid ... |
8-5-2020 at 06:54
by: nimgoldman |
Maleic Acid by Dehydration of Malic Acid ?
Okay I've probably got it 
Malic acid are two carbons connected by single bond, having three gr ... |
5-5-2020 at 13:57
by: nimgoldman |
Maleic Acid by Dehydration of Malic Acid ?
A quick look into the literature revealed a little bit. From Wygand/Hilgetag's "Preparative Organic ... |
5-5-2020 at 13:09
by: nimgoldman |
Maleic Acid by Dehydration of Malic Acid ?
I am interested in glyoxylic acid production by the ozonolysis of maleic acid.
Unfortunately, mal ... |
5-5-2020 at 12:24
by: nimgoldman |
Gallic Acid and Pyrogallol from EGCG/Tannin ?
Heliotropin (piperonyl aldehyde) is made industrially from catechol by methylenation and formylation ... |
27-4-2020 at 03:55
by: nimgoldman |
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