S solarsmith Well-known member Joined Feb 7, 2008 Messages 207 Location denver co Aug 13, 2017 #1 did the platinum drop 2 days ago. did the platinum filter 1 day ago. did the SMB drop 2 hrs ago. used aprox 3 oz of smb . This picture is 2 hrs after the addition of the SMB. I expect to be cleaning the excess smb with water the next few days.
did the platinum drop 2 days ago. did the platinum filter 1 day ago. did the SMB drop 2 hrs ago. used aprox 3 oz of smb . This picture is 2 hrs after the addition of the SMB. I expect to be cleaning the excess smb with water the next few days.
L Lou Moderator Staff member Moderator Joined Nov 4, 2007 Messages 5,203 Location Rhodia Drive Aug 13, 2017 #2 Best to reduce the gold first, reoxidize with peroxide, then boil to decompose any Pd(IV) to Pd(II). Then precipitate the Pt before going after Pd.
Best to reduce the gold first, reoxidize with peroxide, then boil to decompose any Pd(IV) to Pd(II). Then precipitate the Pt before going after Pd.