Quote Originally Posted by cjarvis
Sandy wrote:
"Even chemists disagree about the exact nature of toning but laboratory analysis has been reported that strongly suggests that in toning with gold or Pt./Pd. silver is in fact converted to the more noble metals."

What? Silver is in fact converted to the more noble metals? I want the machine you own that converts silver into some other element. Sounds like a cash cow to me...
Convert was an inappropriate choice of words. I should have said that the silver is replaced by the noble metal. Another possibility is that the noble metal simply encapsulates the silver.

One would think that the exact nature of what happens in toning would be known but it apparently is not as there has been very little modern research on toning with gold, palladium and platinum. I exchanged correpsondence last year on this subject with a number of persons who know a lot more about this subject than me and the bottom line is that the reactions are fairly complex and not well understood.

Sandy