Slochteren
Well-known member
I just sold 2,2 Kilo silver crystal from my cell, the XRF stated 98,87 Ag, 0,897 Au, 0,2 Cu.
This means there was +/ 20 gr gold left if this xrf was good. I cannot believe this...
Feed stock gold plated 800 Silver cutlery. Process in short:
Cut it up in pieces.
Dissolve in 53% nitric.
Decant the silver nitrate.
Filter nitrate thru Coffee filter.
to Ag chloride with salt
Convert chloride with lye sugar method to Ag,
washed with tap water to ph 7
Poored shots from it with a crucible only used for this porpose
Run thru cell
Washed with water till PH 7.
could there be so must gold left after this procedure?
They took a sample of 30 gr crystals, melted it and made an xrf. I did not eye whitness this melting, maybe they used a dirty crucible.
I should have taken it home again and dissolved again to see if there was 20 gr mud left... but i didn't
Thanks Paul
This means there was +/ 20 gr gold left if this xrf was good. I cannot believe this...
Feed stock gold plated 800 Silver cutlery. Process in short:
Cut it up in pieces.
Dissolve in 53% nitric.
Decant the silver nitrate.
Filter nitrate thru Coffee filter.
to Ag chloride with salt
Convert chloride with lye sugar method to Ag,
washed with tap water to ph 7
Poored shots from it with a crucible only used for this porpose
Run thru cell
Washed with water till PH 7.
could there be so must gold left after this procedure?
They took a sample of 30 gr crystals, melted it and made an xrf. I did not eye whitness this melting, maybe they used a dirty crucible.
I should have taken it home again and dissolved again to see if there was 20 gr mud left... but i didn't
Thanks Paul