It's usually not necessary to build a huge dam to determine if it will hold water, or not. That is normally determined by engineering and testing.jmdlcar said:It a part out of a cd-Rom I just want to see if it is silver. If it is tin I just learn something.
That makes no sense at all. The copper in the buss bar is worth far more than the silver, and the only way you'll get the silver to release is to dissolve the copper.yar said:I have buss bars from circuit breakers that I know for certain are plated with silver over copper. I am going to cut the bars in half to expose the copper and put them in AP. i want to see if the silver will flake off the bars similar to gold fingers. I will post results in a few days.
It most likely will result in acceptable results, depending on what your gold washing procedure is. Do remember, silver is not dissolved by HCl.1. Can the washing procedure I use for gold be applied with equal results for silver?
Is it possible you are confused? One does not cement silver flake. If you have finely divided bits of silver, and there's no contamination present that won't be removed in the melting and fluxing process, all that need be done is to melt the silver. Cementing is accomplished by FIRST dissolving the silver in dilute nitric acid. No need to do that in the case of silver flakes.2. Can the silver flake be melted as is or does it have to be cemented with copper first?
Probably a lot like asking how big is a rock.3. Without melting what would the purity be of the silver flake after proper washing to possibly sell as is like can be done with gold flake?
That's ok, you got answers, anyway. Might prove to be useful. Or not.I am not looking for answers to these questions, I am just stating what my thoughts are as I proceed with this experiment.
Harold_V said:That's ok, you got answers, anyway. Might prove to be useful. Or not/.
The AP process works by dissolving the base metal. The buss bar is a lot of material to dissolve, which was my point, but you may be on to something. All depends on the ability of the AP to penetrate the silver plating. If it can, you may enjoy success. Looking forward to a report.yar said:I am doing this experiment to satisfy my own curiosity. If it do not get results that are satisfactory, I can send out the buss bars and the contacts like I have done in the past to one of the members here.
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