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Preparation of Iodomethane
IINM, 100% H₃PO₄ is a solid with m.p. around 40 °C.
It cannot be obtained from commercially av ...
8-5-2022 at 02:57
by: Keras
What to do with styrene?
You can synthesise phenethyl alcohol which is the main component of rose perfume.
7-5-2022 at 09:00
by: Keras
Microscale spinning band distillation up for sale
[rquote=673274&tid=158577&author=SWIM]
Or do you not know a spinning band column from a reg ...
6-5-2022 at 01:56
by: Keras
Cleaning Nitric Acid Stains from Skin
Nitric acid interacts with the keratin present in skin and nails. Just wait until the dead epidermis ...
5-5-2022 at 22:37
by: Keras
Microscale spinning band distillation up for sale
Christ, this is way overpriced. For little over that price I can buy a brand new microscale kit with ...
5-5-2022 at 22:32
by: Keras
p-nitrosophenol purification
[rquote=673241&tid=158526&author=Fery]Keras, you wrote: I’m wondering if what was sold to ...
4-5-2022 at 05:39
by: Keras
p-nitrosophenol purification
[rquote=673216&tid=158526&author=Bmoore55]The nitration of phenol …[/rquote]

Unfortunat ...
3-5-2022 at 06:18
by: Keras
p-nitrosophenol purification
[rquote=673212&tid=158526&author=Fery]o-nitrophenol is yellow
p-nitrophenol colorless (if p ...
3-5-2022 at 04:29
by: Keras
p-nitrosophenol purification
Gah. This is really disappointing. This weekend I tried:

• A 0,1 mole PhOH experiment in, say, ...
2-5-2022 at 12:40
by: Keras
Small scale production of H2SO4 in the amateur lab
[rquote=670314&tid=156031&author=clearly_not_atara]
So it might actually be easier to make ...
17-4-2022 at 23:00
by: Keras
p-nitrosophenol purification
[rquote=672721&tid=158526&author=Fery]I'm not good in theory, but p-nitrosophenol is in equi ...
12-4-2022 at 07:55
by: Keras
p-nitrosophenol purification
[rquote=672709&tid=158526&author=Keras]
Good point. I used HCl just because the nitrosation ...
11-4-2022 at 21:18
by: Keras
p-nitrosophenol purification
[rquote=672706&tid=158526&author=Fery]Hi Keras, all methods use H2SO4. Is there any advantag ...
11-4-2022 at 12:15
by: Keras
p-nitrosophenol purification
[rquote=672694&tid=158526&author=Tsjerk]I don't know if it helps, but here is some discussio ...
11-4-2022 at 02:56
by: Keras
p-nitrosophenol purification
Folks,

I attempted yesterday to synthesise p-nitrosophenol (path to paracetamol) from phenol and ...
10-4-2022 at 23:22
by: Keras
very viscous styrene
You can stabilise styrene using hydroquinone or BHT
27-3-2022 at 02:14
by: Keras
Very OTC Sodium NItrite
Update: I did that. I just dropped a screw made of zinc plated steel into a solution of a few hundre ...
22-3-2022 at 11:47
by: Keras
Very OTC Sodium NItrite
Is there any reason why zinc or iron could not reduced nitrates?

Since NO₃⁻ + H₂O + 2 e⁻ ...
22-3-2022 at 01:08
by: Keras
Very OTC Sodium NItrite
[rquote=672157&tid=77186&author=clearly_not_atara]The ions electrostatically repel; there is ...
21-3-2022 at 11:57
by: Keras
Sodium Hypochlorite "bleach" reagent OTC
Alternatively, you can buy calcium hypochlorite, which is a solid and therefore less subject to that ...
21-3-2022 at 01:59
by: Keras
Very OTC Sodium NItrite
[rquote=672008&tid=77186&author=Keras]Still, I’m surprised that the sodium dithionite meth ...
21-3-2022 at 00:55
by: Keras
Very OTC Sodium NItrite
Thanks!

I put my hands on [i]Vogel's Qualitative Inorganic Analysis[/i], and there’s at least t ...
16-3-2022 at 22:26
by: Keras
Very OTC Sodium NItrite
Alright, I tried potassium nitrate + sodium hydroxide + sodium thiosulphate.

There’s a slight c ...
16-3-2022 at 12:45
by: Keras
Very OTC Sodium NItrite
Still, I’m surprised that the sodium dithionite method doesn’t work. If I follow the CRC Handboo ...
15-3-2022 at 23:08
by: Keras
Very OTC Sodium NItrite
[rquote=671991&tid=77186&author=Antiswat]@keras
dithionite is very difficult to handle
[/r ...
15-3-2022 at 22:21
by: Keras
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