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Delrin as paraformaldehyde source?
I worked in a lab looking at measuring formaldehyde in air.
One option was to draw the air through ...
28-2-2021 at 02:12
by: unionised
Delrin as paraformaldehyde source?
I may have missed a detail. Did you add an acid catalyst to promote decomposition?
27-2-2021 at 16:08
by: unionised
White growth on unopened container of chlorotrimethylsilane
Thanks for that . The word "olation" is a new one to me.

A mixture of silica, silicones and NH4Cl ...
27-2-2021 at 03:37
by: unionised
Very pure sulfur without recrystallization
[rquote=655470&tid=157081&author=RogueRose] but I guess it was hot enough to reach flash poi ...
26-2-2021 at 05:01
by: unionised
Best/preferred method for cleaning up toluene paint thinner?
Do you have any quantitative idea how much thiophene might be present?

I suspect that a lot of co ...
25-2-2021 at 12:30
by: unionised
Vanillin chemistry: Piperonal
If nothing else, I think that's the most impressive array of different colours I have seen in any r ...
25-2-2021 at 11:58
by: unionised
Very pure sulfur without recrystallization
You seem to have missed the bit where the H2S produced by decomposition of polysulphide in acid reac ...
24-2-2021 at 05:34
by: unionised
Acid mixtures that dissolve gold
A concentrated solution of I2 and KI in water will certainly dissolve gold.
23-2-2021 at 11:04
by: unionised
Joining metal vessels to ground glass?
There's the beautiful, but fiddly Housekeeper seal
Someone has posed some details here
http://www. ...
23-2-2021 at 10:59
by: unionised
Attempt to make molten lead from oxalate
How much of the lead do you plan to inhale?
22-2-2021 at 15:07
by: unionised
What is white spirit?
[rquote=655223&tid=14043&author=symboom]I think is never good to exclude many of the ingredi ...
18-2-2021 at 11:36
by: unionised
What is white spirit?
It's not so much that it's "hard" to give a more accurate MSDS. It's that there's no point.

It's ...
18-2-2021 at 02:36
by: unionised
Drying methanol
Digga,
Do you realise that Mg reacts with methanol?
16-2-2021 at 05:09
by: unionised
Recovering an old bottle of FeCl2
I can't see why a simple recrystallisation wouldn't work.
The solubility curve isn't very good but ...
15-2-2021 at 11:00
by: unionised
Caution when bottling aerosol contents
If the propellant had been propane, much more of it would have left the solution before bottling.
...
15-2-2021 at 01:12
by: unionised
Delrin as paraformaldehyde source?
It shouldn't be a problem in dilute solution but, for those who are thinking of using HCl...
https: ...
11-2-2021 at 02:24
by: unionised
K2CO3 / KOH from Wood ashes ?
[rquote=654725&tid=157007&author=Maurice VD 37]The wood ashes have the following composition ...
10-2-2021 at 09:25
by: unionised
A new way to make NCl3?
[rquote=654701&tid=157020&author=njl]Yeah, but the chlorination of ammonia is the standard m ...
9-2-2021 at 11:18
by: unionised
A new way to make NCl3?
I suspect that a mixture of NH3- a strong reducing agent- and Cl2- a strong oxidant would be explosi ...
9-2-2021 at 11:16
by: unionised
Black Phosphorus Sources
[rquote=654618&tid=157016&author=njl]https://sci-hub.st/http://dx.doi.org/10.1039/C9TA13441G ...
8-2-2021 at 11:11
by: unionised
TCI resellers?
https://en.wikipedia.org/wiki/TCI
8-2-2021 at 08:36
by: unionised
fluoresceine 113g for only £6.30
Possibly 1% dye mixed with salt.
For £6.3 I might add some the next time I'm buying DIY stuff, and ...
8-2-2021 at 05:12
by: unionised
possible H2+Cl2 -> HCl plant and chlorination reactor
If you keep up this research, eventually you will get to what they do in industry.
Here's a demo on ...
8-2-2021 at 01:01
by: unionised
K2CO3 / KOH from Wood ashes ?
The brown colour is more likely to me "humic acid" and or caramel like stuff than Iron.
Fe(OH)3 is ...
7-2-2021 at 10:08
by: unionised
Sodium nitrite from barium nitrite
[rquote=654556&tid=157004&author=artemov][rquote=654553&tid=157004&author=unionised] ...
7-2-2021 at 06:31
by: unionised
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