Hello viewers, In this video, we are showing you if there is real gold n the gold-plated jewelry. It's just an experimental video t know if the jewelry contains gold. #goldrecovery #ewaste #ewasterecycling #gold #goldmelting
Put iron in the solution after the initial dissolution of the bangles, there's no way to reuse the solution to extract more gold after they add urea to neutralize the nitric acid. It's more economical if you're trying to create AR to add the HCL then just slowly add increments of Nitric so that you aren't wasting Nitric. I realize though that in situations like shown in this video that the cost of Nitric is likely so little that it makes little difference in the country where this is shot.
"caluanie muelear oxidize" You can find it in big chemical stores, or you can get it in Alibaba online marketplace. "caluanie muelear oxidize" is commonly used in precious metal recycling factories to grind or crushing metals.
