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I recently sold some silver contacts as is for silver recovery and the buyer says they are tungsten. They don't have a waffle back and they showed red in the silver test. The reason he wants to return them is that he can't melt them for easy recovery. Is there an easy way to tell the alloy content without having access to test equipment? Can these be processed to remove the silver?
I suggest you look at the gold refining forum for answers. 73, Mike
Yes.Quote:
Originally Posted by junkerjake
Your buyer should not be melting silver contacts of any sort, they all contain cadmium to some degree.
You should as miked suggested join the gold refining forum, also sell your silver contacts to forum members who know how to safely deal with them with out killing themselves or harming other people nearby.
Cadmium would be a slow cancerous death.
Is the gold refining forum a part of this group? I would like to get started in refining metals myself. I buy old lab equipment and computers and have just been saving the circuit boards and other weird stuff. I think I have all the equipment needed to refine metal sitting in the warehouse. Have been using the Paul O Abbe ball mill to make sea glass instead of crushing the ic chips. So far the only refining I do is melt irony aluminum into ingots (watch out for magnesium air drills). I have been scrapping forklifts, electric motors, motor starters, welders, and transformers for several years now and just started removing the contacts from the backing again. I do this under a vented lab fume hood.
Acids and cyanide talk will put everyone on this forum into a frenzy, the gold forum is a separate entity. Once you join I suggest you go to the Books section and download Hoke's Refining Precious Metals Wastes. Read the book several times to learn the techniques and language used on the forum.Quote:
Originally Posted by junkerjake
Have fun and be safe, https://www.goldrefiningforum.com/
Of all the many youtube posters on precious metals you can trust Sreetips for accuracey,
https://youtu.be/_CbS4Iwyy14
Refining is extremely dangerous if done improperly . Admin does not want info about it on this site. That's why you were referred to the gold refining forum. They are very safety conscious, and will try to scare away people that may pose a safety hazard.
Etack or noblemetalworks may be able to refer you to a buyer
alloy2 thanks for the help
I am going to join the Gold Refining Forum. The Hoke's refining book is available on line see post below.
Your link is SPAM.Quote:
Originally Posted by junkerjake
I scanned the original book using OCR software so I might just know how to obtain a copy.
If you click on the address you are redirected to a different sight. I done a search on Google for "Refining Precious Metals Wastes by CM. Hoke" and clicked on the "pdf Refining Precious Metals Wastes by CM. Hoke-Recycling Secrets" and it came up with the "Refining Precious Metals Wastes by CM. Hoke"Quote:
Originally Posted by alloy2
Made available through the many generous donations of our members.
Come Join Us At
404 Not Found
"Not for Resale
CM. Hoke has written this book in non technical terms with easy to follow
instructions.
There is some confusion with the information you posted, Hokes Refining Precious Metals Wastes was purchased and scanned by be with out any gold forum donations, her companion book Testing Precious Metals was purchased by me and a few other forum members who made contributions towards the purchase.Quote:
Originally Posted by junkerjake
After scanning the testing precious metals book with OCR software I then forwarded the book to the donor who had made the largest donation towards its purchase. The testing precious metals book contains formulas for testing solutions.
You have a PM.
your contacts should bend if they are An Alloy.Quote:
Originally Posted by MattInTheHat
If they are WAg they will not bend but break.
Eric