Hi everybody. I have a green palladium solution. I took a sample of it and I added a DMG and sodium hydroxide solution to the green pd solution. It precipitated green powder. I read in some forums that I should filtrate the powder and wash it with cold water until it gets yellow pdDMG powder. When I washed it it got white color. Am I doing something wronge? Or I didnt make the DMG solution correctly. I tested the green solution with Stannous chloride before and after adding DMG solution. Before it was positive after adding it got negative with the green precipitate. What should I do?
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hello everyone i hope you all have a good day. i got into a big mess here, i scraped hundreds of cell phones, remove as much plastic as possible and also removed iron from it but still there is a big quantity of base metals, i burned everything for the acid to do a good job and i ended up with a half 5 gallon bucket full of copper mixed with all kind of metals from cell phones and computers in total is about 5 kilos of mixed boards
tried to separate every component manually because there is a considerable amount of palladium since most of the boards are from phones, ipads and computers but i found out is very difficult
there are all kind of mixed metals so i just added concentrated nitric acid to get first the copper, im new in this so i wonder if adding the acid was the right thing to do, there are many ics that neeed to be crush i think i made a mistake, please help
by the way i wanted to create a new post but it will not let me do it
same to you my halp
Re-dissolve with water/dilute HCl and add the copper
So what could I do if the precipitate has the pd?
Ok I already did that and I will let it for some days. But what if the precipitate do contain pd in it and there is no in the solution? Should I do tue SMB process?
Yes and what do yoy advice me to do?
Hi I made a 20ml DMG solution with 2grams DMG with 20ml water and I added like 15ml to the solution. Here is the precipitate I got. One friend told me to dissolve this precipitate in nitric acid and then dilute the solution and add SMB and a yellow palladuim precipitate will settpe but I am not sute should I do that?
It sounds like you may have precipitated some hydoxides / oxides.
How much. DMG solution have you added? Is the leach solution still acidic?