prince
Member
Welcome everyone in the group.I did some reading in the group.I have some problems.I have worked with about 30 mobile boards.
I soaked the boards in HCL first And removed the solder.Then I made air bubbles in the AP solution and later I filtered the gold foil.I noticed some of the gold foils were green plastic-like material that was probably base metal.I'm adding pictures.
I want help from the veterans.How can I purify gold foils.I do group studies almost regularly and read CM Hook’s book I haven’t read yet.But refining these gold foils for my own encouragement will bring me a lot of encouragement.Thanks in advance to everyone.
I soaked the boards in HCL first And removed the solder.Then I made air bubbles in the AP solution and later I filtered the gold foil.I noticed some of the gold foils were green plastic-like material that was probably base metal.I'm adding pictures.
I want help from the veterans.How can I purify gold foils.I do group studies almost regularly and read CM Hook’s book I haven’t read yet.But refining these gold foils for my own encouragement will bring me a lot of encouragement.Thanks in advance to everyone.