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Extract phosphorescent substance from glow in the dark plastics?
I'm after a small amount of phosphorescent substance, ideally not water soluble. Wanna use to to mak ... |
17-4-2021 at 13:09
by: Junk_Enginerd |
Trying to get potassium permanganate out of solution, keeps turning to MnO2
Ah. Okay so it may be a temperature issue. I wasn't sure whether it was the loss of water itself tha ... |
17-4-2021 at 11:38
by: Junk_Enginerd |
Trying to get potassium permanganate out of solution, keeps turning to MnO2
So I've been trying to make potassium permanganate from carbon zinc batteries. I start off by rinsin ... |
16-4-2021 at 22:36
by: Junk_Enginerd |
Review my guesswork chemistry - Chlorinating ethanol -> Chloroform
The equivalent of a buck here will get me about 75 cl of bleach, so 5 ish times more expensive. But ... |
11-4-2021 at 08:47
by: Junk_Enginerd |
Review my guesswork chemistry - Chlorinating ethanol -> Chloroform
Cool. Really satisfying to unknowingly stumble upon something so effective. Gives me 1800's chemist ... |
11-4-2021 at 04:10
by: Junk_Enginerd |
Review my guesswork chemistry - Chlorinating ethanol -> Chloroform
[rquote=657949&tid=157280&author=Fyndium]This is the part I fear of chemistry. Some reaction ... |
11-4-2021 at 03:16
by: Junk_Enginerd |
Review my guesswork chemistry - Chlorinating ethanol -> Chloroform
[rquote=657944&tid=157280&author=zed]Ummm. I'll have to read more.
But, I would procee ... |
11-4-2021 at 01:06
by: Junk_Enginerd |
Glass Joint Grease and Pentane
I use Krytox. PTFE grease. Though I only use it for things I don't mind having PTFE grease on them u ... |
10-4-2021 at 07:59
by: Junk_Enginerd |
Review my guesswork chemistry - Chlorinating ethanol -> Chloroform
I want an easier and more effective way of making chloroform than the standard ones discussed here, ... |
10-4-2021 at 04:47
by: Junk_Enginerd |
"Quick and dirty" seals, connectors, plugs?
I often have a need for making something that only needs to work once. Last example is wanting to ma ... |
21-2-2021 at 01:42
by: Junk_Enginerd |
Does wood pyrolysis generate heat ??
I don't think that part of the wiki article is correct. Doesn't make sense. As a chemical reaction I ... |
14-2-2021 at 09:54
by: Junk_Enginerd |
Lamp work - hollow glass sphere
They were most likely borosilicate then. Not a lot to choose from. Soda lime will easily soften in f ... |
1-2-2021 at 04:32
by: Junk_Enginerd |
making fused quartz at a lower tenperature using silica gel
A major reason for borosilicate and soda glass to exist is that quartz glass doesn't soften. Much li ... |
25-1-2021 at 06:01
by: Junk_Enginerd |
Why do Mg salts not color the flame ?
I'm no expert on this but my reasoning is: Yes, there's a clear green line. Also lots of blue ones a ... |
24-1-2021 at 10:26
by: Junk_Enginerd |
Freeze drying question
I thought the "freeze" part happened by itself? Like, due to the water boiling off in the vacuum. Do ... |
24-1-2021 at 10:09
by: Junk_Enginerd |
Lamp work - hollow glass sphere
What do you mean "collapses"? That's not how glass behaves in my experience. It should be literslly ... |
24-1-2021 at 02:34
by: Junk_Enginerd |
Low(est) boiling point salts?
[rquote=653415&tid=156924&author=DraconicAcid]Anhydrous copper(II) nitrate is surprisingly v ... |
21-1-2021 at 01:21
by: Junk_Enginerd |
Low(est) boiling point salts?
[rquote=653366&tid=156924&author=unionised]Does ferric chloride count as a salt?
Copper Chl ... |
18-1-2021 at 15:18
by: Junk_Enginerd |
Low(est) boiling point salts?
I'm experimenting putting substances in electric discharge lamps, and I'm thinking about what to put ... |
18-1-2021 at 10:35
by: Junk_Enginerd |
Mixing concentrated acid and base
[rquote=653192&tid=156906&author=roXefeller]How about adding cold NaOH to cold SA. In suffi ... |
16-1-2021 at 04:31
by: Junk_Enginerd |
Mixing concentrated acid and base
Yeah I can think of a way to one-up all suggestions so far. Heat up sulfuric acid to boiling (250°C ... |
15-1-2021 at 15:46
by: Junk_Enginerd |
Help understanding DIY discharge tube emission spectrums
[rquote=653057&tid=156896&author=wg48temp9]Glass tubes and plastic hoses are covered by a l ... |
14-1-2021 at 02:58
by: Junk_Enginerd |
Help understanding DIY discharge tube emission spectrums
Allright let's see about those photos then. Both of these are with normal air, Getting the sulfur on ... |
13-1-2021 at 09:07
by: Junk_Enginerd |
Help understanding DIY discharge tube emission spectrums
[rquote=653027&tid=156896&author=DraconicAcid]Have you looked at the light through a spectro ... |
13-1-2021 at 08:59
by: Junk_Enginerd |
Help understanding DIY discharge tube emission spectrums
So I've been having a blast DIYing discharge tubes since I got a 5 Pa vacuum pump. I'd have preferre ... |
12-1-2021 at 14:20
by: Junk_Enginerd |
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