Sciencemadness Discussion Board

365nm UV light source

arkoma - 27-4-2022 at 09:41

Have this light, and wondering how well it might work for things like chlorinations of, say, toluene?

Any other useful ideas?



uvlight.jpg - 344kB

SWIM - 28-4-2022 at 20:38

I see a post from Not_important saying that 300 to 380 Nm is fine for radical chlorinations and that those wavelengths transmit through regular borosilicate well enough that you shouldn't need quartz immersion wells or anything like that.

Things I should've checked on before I started buying quartzware.
Well, crap. I was turning a good profit on glassware back then and was sort of on a buying jag with my profits.
It got so my priorities weren't so much what I actually needed as what was hard to get and a good deal. I look at some of the weird stuff cluttering up my place and wonder what the hell I was thinking.

Anyway it looks like 365 Nm should be a good choice for radical chlorinations. And it won't fry your eyeballs and skin the way my frickin' UVC stuff can.

I didn't look around enough to find it yet, but I think there's a post by Melgar about a slick way to do that with a touch of bromine as a catalyst to really help things along.
If I recall correctly it was clever enough to impress Polverone.

Edit: I'll do some poking around.

http://www.sciencemadness.org/talk/viewthread.php?tid=1305&a...
(The Not_important post)
[Edited on 29-4-2022 by SWIM]

[Edited on 29-4-2022 by SWIM]

[Edited on 29-4-2022 by SWIM]

mysteriusbhoice - 2-5-2022 at 04:55

nurdrage made a video and he used a lightsource of the same wavelength so it should be fine
https://www.youtube.com/watch?v=4DQuv6LjB80