Unique method to metalize E-waste milled powder

[Ayham Hafez]

No, it needs UV light.
Then the CN ion will be freed to do the job.
Ferrous Cyanide is easier, if I remember correct.
These things can be found relatively cheap on Alibaba if you do not find it locally.

Its something new for me, I didn't find any article talking about gold recovery using ferrous cyanide, in Alibaba Sodium Ferrocyanide price about 1.6 USD near from Jinchan agent on price, I think as you said they just mix ferrous/ferri cyanide with NaOH, but anyway none recommended to go for E-waste ash leaching with gold dressing agents, as Kurtak clearly explained, but I will make some tests on Jinchan since its available in my country and I already have potassium ferricyanide and I have about 1,000 Kg of copper partially plated coax connectors, there is no way for me to go with other process to recover the plated gold from those connectors.