ZiegenSauger
Well-known member
- Joined
- May 18, 2020
- Messages
- 73
Greetings!
I have been "watching" in silent mode since I joined for learning purposes. Over the last year, I have been studding formal sources, browsing the web, watching videos and buying tools, chemicals, scrap, and so forth.
First I started to work with base metals to train melting, pouring. Then I moved to Silver until I was able to pour my first bar (now I have accumulated slightly under 1Kg of cement silver, in "cleaning" process right now).
Over the last month, disaster after disaster: All my (gold, platinum, palladium) precipitates failed.
In summary, I have one back Stannous positive for Gold, one batch Stannous positive for Palladium and possible traces of Platinum, one batch Pl with possible traces of Pd.
For all this, in separate time frames and processes, I cleaned base metals with HNO3, dissolved Gold foils in Acqua Regia, dennoxed, reduced to syrup. Failure one, two and three. Now it is in liquid form since I cannot understand how many wrong things I am doing.
For Pd and Pt in summary I had almost a pound of Silver/PGM that I processed somewhat similar to above.
I dennoxed using 2 different methods, the continued evaporation 2x. I use SMB for Gold precipitation and for PGM, Nh4Cl, DMG, NaClO3 and NH4Cl, used in different situations. During one of the disasters (2 Gold disasters, one of them I lost equivalent to 25% to the syrup Gold) and a handful of PGM disasters (I lost under 5% of total combined syrup) I dropped the Pt batch and the Pd with Aluminium, and managed to obtain the powder. However after Acqua Regia, it is all in liquid form again. I added Sodium Chlorade to five small test tubes. All of them reacted and the liquid became crystal yellow (about 24hrs and no precipitate but chlorine gases still being released).
Is there any information I need to add? Any clue for a dumb newbie who is certainly repeating the very same stupid mistake over and over?
Thnx in advance (in desperate mode)
Regards
I have been "watching" in silent mode since I joined for learning purposes. Over the last year, I have been studding formal sources, browsing the web, watching videos and buying tools, chemicals, scrap, and so forth.
First I started to work with base metals to train melting, pouring. Then I moved to Silver until I was able to pour my first bar (now I have accumulated slightly under 1Kg of cement silver, in "cleaning" process right now).
Over the last month, disaster after disaster: All my (gold, platinum, palladium) precipitates failed.
In summary, I have one back Stannous positive for Gold, one batch Stannous positive for Palladium and possible traces of Platinum, one batch Pl with possible traces of Pd.
For all this, in separate time frames and processes, I cleaned base metals with HNO3, dissolved Gold foils in Acqua Regia, dennoxed, reduced to syrup. Failure one, two and three. Now it is in liquid form since I cannot understand how many wrong things I am doing.
For Pd and Pt in summary I had almost a pound of Silver/PGM that I processed somewhat similar to above.
I dennoxed using 2 different methods, the continued evaporation 2x. I use SMB for Gold precipitation and for PGM, Nh4Cl, DMG, NaClO3 and NH4Cl, used in different situations. During one of the disasters (2 Gold disasters, one of them I lost equivalent to 25% to the syrup Gold) and a handful of PGM disasters (I lost under 5% of total combined syrup) I dropped the Pt batch and the Pd with Aluminium, and managed to obtain the powder. However after Acqua Regia, it is all in liquid form again. I added Sodium Chlorade to five small test tubes. All of them reacted and the liquid became crystal yellow (about 24hrs and no precipitate but chlorine gases still being released).
Is there any information I need to add? Any clue for a dumb newbie who is certainly repeating the very same stupid mistake over and over?
Thnx in advance (in desperate mode)
Regards