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Oxalyl Chloride Challenge
[rquote=689159&tid=82462&author=Niklas]Are there any sources where DMF where would be access ... |
8-12-2023 at 18:14
by: Lionel Spanner |
Synthesis of disperse red 9
To my mind, the best route would be to prepare 1-aminoanthraquinone, then carry out reductive aminat ... |
12-10-2023 at 14:01
by: Lionel Spanner |
Preparation of ionic nitrites
Below is a useful quantitative assay I've used in the past for testing the purity of nitrite.
1. ... |
5-9-2023 at 07:57
by: Lionel Spanner |
Preparation of ionic nitrites
[rquote=686868&tid=52&author=unionised][rquote=686590&tid=52&author=Parakeet]Here it ... |
22-8-2023 at 06:11
by: Lionel Spanner |
Preparation of ionic nitrites
[rquote=686590&tid=52&author=Parakeet]Here it is.
Haven't read everything yet, but the proc ... |
12-8-2023 at 22:32
by: Lionel Spanner |
Preparation of ionic nitrites
Here's what may be a very interesting and relevant paper, describing selective production of nitrite ... |
11-8-2023 at 09:34
by: Lionel Spanner |
Help with crystallising monopotassium glutamate
Are you in a position to try removing the water by vacuum distillation?
(This was what I meant in m ... |
11-8-2023 at 09:26
by: Lionel Spanner |
How to make the air in my lab less oxidizing??
Depending on the age and condition of the building and where your lab is located in it, it could als ... |
10-8-2023 at 14:09
by: Lionel Spanner |
Preparation of cyanogen bromide and a polymethine dye
Excellent work and write-up - great pictures too!
You're a lot braver than I am, I'd be loath to wo ... |
7-8-2023 at 13:26
by: Lionel Spanner |
Help with crystallising monopotassium glutamate
Can you remove the water under vacuum?
I find that helps a lot when removing water from highly solu ... |
3-8-2023 at 03:15
by: Lionel Spanner |
Preparation of ionic nitrites
Since reductive pathways to nitrite generally require high temperatures and produce poor purity prod ... |
2-8-2023 at 14:54
by: Lionel Spanner |
Where to get DCM?
If you're based anywhere near Europe, Laboratorium Discounter (based in the Netherlands) sell it at ... |
17-7-2023 at 14:47
by: Lionel Spanner |
Nitroethane from ethanol
[rquote=685641&tid=159717&author=Grizli7]So the question remains open- is there a way to obt ... |
12-7-2023 at 14:03
by: Lionel Spanner |
Control of reflux temperature for fractional distillation - how?
Industrial fractionating columns are designed for continuous processes; lab-scale equipment is bette ... |
12-7-2023 at 07:35
by: Lionel Spanner |
Using a vacuum filtration flask in vacuum distillation?
If vacuum distillation is something you're planning to do frequently, a heating mantle is definitely ... |
5-7-2023 at 14:46
by: Lionel Spanner |
Liquefying SO2 into a Plastic Bottle
[rquote=685374&tid=159686&author=Parakeet][rquote=685312&tid=159686&author=Lionel Sp ... |
2-7-2023 at 08:09
by: Lionel Spanner |
Liquefying SO2 into a Plastic Bottle
It's very likely to dissolve or severely corrode the plastic, especially under pressure.
Also, h ... |
30-6-2023 at 06:21
by: Lionel Spanner |
Reliable Chemical Suppliers 2023
With those kind of prices, it'd be cheaper to buy from Ligma Aldrich. |
27-6-2023 at 13:39
by: Lionel Spanner |
Confusing hydrogen peroxide label.
[rquote=685177&tid=159673&author=Chemgineer]I should add, it must be fairly high concentrati ... |
25-6-2023 at 10:39
by: Lionel Spanner |
1,2 dichlorobenzene EU supplier or synthesis
[rquote=685148&tid=159664&author=draculic acid69]Buy o-phenyldiamine and sodium nitrite and ... |
24-6-2023 at 20:13
by: Lionel Spanner |
Preparation of ionic nitrites
If you can actually get it to work, that'd be one hell of an achievement.
As I said: good luck! |
20-6-2023 at 13:07
by: Lionel Spanner |
Preparation of ionic nitrites
[rquote=685055&tid=52&author=fx-991ex]In the first post he do NaHSO3 + CaCl2 and then heat t ... |
20-6-2023 at 03:51
by: Lionel Spanner |
Is pyrrolidine hydrochloride deliquescent, or easy to dry?
I connected a simple distillation apparatus to a vacuum pump, ran ice-cold water through the condens ... |
9-6-2023 at 15:19
by: Lionel Spanner |
25L of formaldehyde for £0.95 - Cheltenham, UK (ending tomorrow on eBay)
From the old CHIP pictogram on the label, and the fact the supplier (Micro-Biologicals Ltd. of Bury ... |
7-6-2023 at 15:42
by: Lionel Spanner |
25L of formaldehyde for £0.95 - Cheltenham, UK (ending tomorrow on eBay)
[rquote=684801&tid=159633&author=SplendidAcylation]As an aside, does anyone know how to ship ... |
7-6-2023 at 14:38
by: Lionel Spanner |
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