[JCR]

Hi Guys

I red with a lot of interest what Fleaker had to say about recovering silver from silver chloride(Melting Silver Chloride). I am actually melting silver chloride myself and had a bit of trouble. I'm using sodium carbonate in a ratio of 1:2 w/w. It is quite efficient and I,m getting a very liquid slag from it. I only have 1 problem ramaining.  I can still see quite a bit of silver beads floating on top of my melt. When I poor everything, I still have to remelt some of the slag to recover what is left. Result is twice as much work as what should be required. Would you have any tricks that would help me?

[BluRay]

I have never done it, but I know firms that do it usually. The reactions are:

2AgCl + Na₂CO₃ (high temperature)  Ag₂O + CO₂ + 2NaCl

Ag₂O + heat 2Ag + 1/2O₂.

My question is: the slug is liquid or solid at those temperatures? If it's liquid I wonder how could silver float on it. Are you sure it's pure silver?
If the slag is not liquid, you could perhaps make a lot of holes through it, so that the melted silver could go down the crucible (don't know, it's just an idea).

[Fleaker]

Add more sodium carbonate and a little bit of borax.

Make sure you do this in a draft!