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Community/Chemistry-friendly Video Hosting Site
[rquote=516170&tid=82348&author=Rhodanide]
900 MB or so, 500 MB isn't enough for videos lon ...
30-4-2018 at 10:23
by: DavidJR
Community/Chemistry-friendly Video Hosting Site
I forgot that I had set this up on a testing VM with limited storage. So, later today I will move it ...
30-4-2018 at 09:05
by: DavidJR
Community/Chemistry-friendly Video Hosting Site
[rquote=516156&tid=82348&author=Rhodanide]
Okay bud you reeeeeaaalllly need to up the file ...
30-4-2018 at 07:34
by: DavidJR
Community/Chemistry-friendly Video Hosting Site
Since it's become clear recently that youtube (et al) is hostile towards chemistry videos etc, I thi ...
30-4-2018 at 07:12
by: DavidJR
Sulaiman's "SM Challenge: Water Still"
You could use a timer to have it cut out before it boils dry, if you're worried about any high-boili ...
29-4-2018 at 16:01
by: DavidJR
SM Challenge - thoughts?
[rquote=515941&tid=82244&author=Melgar]Ooh, I have an idea. See who can build the most inte ...
29-4-2018 at 13:58
by: DavidJR
Sulaiman's "SM Challenge: Water Still"
Interesting. I also hate paying so much for distilled water.

Any entries would however have to b ...
29-4-2018 at 13:16
by: DavidJR
Selling Chemicals - EU Only
How much are you looking for for the heating mantle?
26-4-2018 at 10:16
by: DavidJR
Lab-scale continuous fractional distillation
[rquote=515062&tid=82076&author=Sulaiman]
1) From the SM library download
Vogel: Practica ...
24-4-2018 at 12:11
by: DavidJR
The nitration of styrenes by nitric acid in dichloromethane
Here you go:

[file]67639[/file]
24-4-2018 at 11:52
by: DavidJR
How toxic is methanol actually?
Honestly even taking a big whiff from my bottle of dry methanol I can barely smell it at all. Much, ...
21-4-2018 at 18:07
by: DavidJR
Lab-scale continuous fractional distillation
Stainless steel pot scrubbers seems like a good idea.

If I bought 3x 300mm columns, I could stac ...
20-4-2018 at 14:44
by: DavidJR
Lab-scale continuous fractional distillation
For the purposes of discussion let's say, [i]hypothetically of course[/i], that the feedstock was ar ...
20-4-2018 at 09:04
by: DavidJR
Bad elements from ebay again
[rquote=514913&tid=82049&author=diddi]
... believe it or not i was sold Te as Li ffs. the ...
19-4-2018 at 17:54
by: DavidJR
Lab-scale continuous fractional distillation
Has anyone had any success using a continuous fractional distillation process at a lab scale?

I w ...
19-4-2018 at 17:45
by: DavidJR
How should I choose glass joint size?
Within reason you can buy lots of combinations of flask size/joint size. However larger volume flask ...
15-4-2018 at 18:54
by: DavidJR
Whats the most dangerous chemical you've ever synthesized?
NO[sub]2[/sub] isn't anywhere near as unpleasant as the halogens imo. Also, spend the £35 or whatev ...
15-4-2018 at 14:18
by: DavidJR
Ammonia production from ammonium sulfate & sodium base
Won’t you get a lot of ammonium carbonate/bicarbonate?

I’d just use an ammonium salt plus NaO ...
14-4-2018 at 02:17
by: DavidJR
Questions on:Colloidal Gold
KCN solution dissolves gold in general, so yes, I'd expect it to dissolve colloidal gold pretty quic ...
13-4-2018 at 01:28
by: DavidJR
H2O2 ratio needed to dissolve metals in acid - 2:1 ratio or more?
Volume ratio isn't really what's relevant though, the molar ratio is.
12-4-2018 at 18:18
by: DavidJR
Ether synthesis safety
Is ether-containing starter fluid readily available in the UK/EU?
12-4-2018 at 12:06
by: DavidJR
Ether synthesis safety
Actually the bumping was always worst for me towards the end. With the pieces of smashed unglazed po ...
11-4-2018 at 15:39
by: DavidJR
Ether synthesis safety
Best thing in my opinion for situations where you know something will bump pretty badly is to use a ...
11-4-2018 at 13:24
by: DavidJR
Ether synthesis safety
Ether is very volatile and it's quite possible that some of the dense vapors will make it onto the s ...
11-4-2018 at 12:20
by: DavidJR
Azeotropes
[rquote=513788&tid=81835&author=unionised][rquote=513680&tid=81835&author=DavidJR]
...
10-4-2018 at 15:08
by: DavidJR
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