Old name for pot. ferri. is prussiate of potash. What about bleaching
silver stains with strong pot. ferri. + bromide and then fixing? Or
tincture of iodine (and fix) if the ferri. doesn't do it?
Liam
Received on Sun Oct 23 21:24:10 2005
This archive was generated by hypermail 2.1.8 : 11/07/05-09:46:19 AM Z CST