ashir said:here is a video link
https://m.youtube.com/watch?t=297s&v=h9jFjXVo6Tk
at time 05:00 he make a pot with ash and calcium hydoxide. which Ash he is using? later he write the process and change his words. image.jpg
he write to use sodium bicarbonate and ash! what will be the accurate mixture to make pot
Yggdrasil said:I have a couple of questions to the more experienced lot here.
In most, if not all of these videos they use chunks of wood on top of the cupel. (It is cupellation is it not?)
Are this to supply carbon to the flame or the molten bath?
I had this idea that the flame should be oxygen rich to oxidize the lead/base metals
or is that a totally different ballgame?
Additionally these processes looks quite "dirty" compared to what I would expect for cupellation for,
for instance assays.
If using portland cement, should it be kept dry or moisted and cured?
Just curious here so I'm looking forward for some elightenment
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