metalresearcher
International Hazard
Posts: 730
Registered: 7-9-2010
Member Is Offline
Mood: Reactive
|
|
Potassium mirror ?
Heating a question mark shaped retort tube which was welded on one end snd coupled with a 10mm borosilicate tube on the other end had a nice effect.
I heated K2CO3 + C to over 1200 C (probably more because the tube melted) and saw a nice mirror appearing on the glass tube. That must be condensed K
metal, but was unable to capture it in the oil. Anyway, after cooling I dismantled it and saw the still nice mirrored tube connected to the (deceased)
retort.
UPDATE: When it was cooled down I poured some water into the glass tube and indeed lilac flames appeared which was an indicator of the presence of K
metal.
[Edited on 2023-8-16 by metalresearcher]
|
|
|
Johanson
Harmless
Posts: 35
Registered: 23-3-2023
Member Is Offline
|
|
Dang nice! Would you mind showing us your heating arrangement/apparatus?
|
|
|
![[*]](images/xpblue/default_icon.gif){kind=icon}
