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Most toxic compound OTC?
In terms of "the chemical that kills most people" ethyl alcohol probably wins.
26-5-2020 at 13:17
by: unionised
Silica gel mystery?
I'm fairly sure that a lot of the early work on chromatography was done with diatomaceous earth as t ...
24-5-2020 at 06:17
by: unionised
Most toxic compound OTC?
Ricin got a mention so...
"Symptoms are identical to those of ricin, except abrin is more toxic by ...
24-5-2020 at 04:34
by: unionised
Name for frozen phases
[rquote=636510&tid=155424&author=chornedsnorkack]

Are there any solid phases in system H[ ...
20-5-2020 at 01:32
by: unionised
Problems with the synthesis of formaldehyde by pyrolysis of metal formates
It looks like zinc formate produces methyl formate- which is interesting.
19-5-2020 at 13:05
by: unionised
Problems with the synthesis of formaldehyde by pyrolysis of metal formates
[rquote=636288&tid=155405&author=WGTR]"The result was a volume that corresponded almost exac ...
19-5-2020 at 13:02
by: unionised
Name for frozen phases
Solvates.
But beware that , like "hydrates" it's a verb as well as a noun.
Words like Etherates an ...
19-5-2020 at 12:56
by: unionised
Distillation effect on purity
It's impossible to tell without knowing what you are using it for.
19-5-2020 at 12:54
by: unionised
Piperazine workup
The aldehyde group will react with the secondary amines.
If you had dimethyl piperazine it would be ...
18-5-2020 at 09:27
by: unionised
Reducing metal oxides with wood gas
How did the Romans smelt lead?
17-5-2020 at 23:58
by: unionised
Device that heats at around 40 degrees C?

Apparently this is cheep.

https://www.youtube.com/watch?v=3Y0ROuPGaxw

[Edited on 18-5-20 by un ...
17-5-2020 at 23:54
by: unionised
Single displacement reaction for lead?
[rquote=636308&tid=155414&author=DraconicAcid]It may look like that, but the copper does go ...
17-5-2020 at 13:25
by: unionised
Problems with the synthesis of formaldehyde by pyrolysis of metal formates
If this is to be believed then the calcium salt is about the worst option

A. Górski, A. D. Kraś ...
17-5-2020 at 02:19
by: unionised
Does excess hydrochloric acid evaporate?
[rquote=636080&tid=155373&author=Jacob][rquote=636055&tid=155373&author=mayko]Be awa ...
14-5-2020 at 13:46
by: unionised
Does excess hydrochloric acid evaporate?
20% isn't some magical number, fixed for all time and all circumstances.
It's roughly the azeotrop ...
14-5-2020 at 11:18
by: unionised
Distallation of Salt
It is done routinely with ammonium chloride...
14-5-2020 at 04:27
by: unionised
My parents dont let me buy platinum
When I read the OP I thought the implication was that his parents thing he shouldn't be "wasting tim ...
10-5-2020 at 01:33
by: unionised
Extracting copper and nickel from a coin
I'm fairly sure that, like AgI, CuI will dissolve in a solution of Na2S2O3
2-5-2020 at 05:47
by: unionised
Removing orange dye from sodium silicate solution?
I suspect that you might be trying to remove Fe(III) by oxidation.
Good luck.
https://patents.goog ...
2-5-2020 at 05:34
by: unionised
Old bath oil is... fluorescent!
Something that is brightly fluorescent probably doesn't contain much fluorescent material.


[Edite ...
30-4-2020 at 06:49
by: unionised
Evaporating bleach - what would come out?
If you dry bleach there's a fair to middling chance that you will get salt.
Bleach slowly evolves ...
26-4-2020 at 09:57
by: unionised
Quantitative preparation of boric acid (from borax)
I think methanol would be a better bet than IPA.
Also, now that I think of it, it's probably better ...
26-4-2020 at 03:35
by: unionised
Quantitative preparation of boric acid (from borax)
Crystalise out the boric acid as far as you can.
Then dry the solution down to form crystalline sod ...
26-4-2020 at 02:18
by: unionised
Storage of lead azide
[rquote=634595&tid=155222&author=Katie]

keep in a 100ml Pyrex reagent bottle



[/r ...
23-4-2020 at 09:21
by: unionised
COVID-19 heat resistance ?
[rquote=634617&tid=155230&author=MadHatter]140-degree Fahrenheit temperatures typically
use ...
23-4-2020 at 03:53
by: unionised
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