Your videos should be mandatory viewing for teachers. The practice of explaining every relevant bit of information makes a very effective demonstration of how to teach.
your "rework filter papers" and "rework waste pails" are always really interesting - you mention that at some point, so we look forward to the day you have enough to make it worth the hassle :P
Hello Senior, great vid. Could watch these all day. Keep them coming. Have yourself a great summer. Take yourself and Mrs Streetips on a nice vacation. Thanks.
I have had this liquid form several times as I recover silver from dirtier sources. I use copper and chloride methods of recovery. I tested the liquid with a ph strip and found it to be neutral which would indicate a salt. My assumption is that it is Silver chloride and have been adding Sodium carbonate to my melts. Seems to help clean up things. And yes...I know about assumptions! : )
I had a batch of 450g of Sterling already in process when I saw this video. Today I went to rinse my cement silver and ended up with the same green mess you had. I'm relatively sure the source of mine was previously used copper in the process. when I pulled them out there was a reddish layer under the silver still on the copper which I rinsed off into the silver without thinking. I believe it was some form of copper oxide or chloride. Hence, MAJOR copper contamination in the silver. I didn't use your Hcl method, I just kept rinsing, and eventually got the green tint to go away. However, the silver had a bronze colored tint and flamed bright green when melted. I will only use fresh copper in the future and remove it right near the end of the reaction. The used copper will then go directly to the stock pot...not to be used for cementing a batch of silver again. Thanks for your videos! Your videos are what brought my attention to this hobby several years ago. Was not surprised when your hat showed you to be a fellow MM.
I’ve had the same problem doing silver contacts I think you were correct about it being some kind of tungsten when there is excessive nitric left this happens and even with 5-8 Hcl washes it still will not come out I melt and pour off the slag and re refine the silver