Arresting corrosion on copper?

Hi all, I have some coins in great shape...other than a few, active corrosion spots. which are bright green. not from my conditions. but previous issues. cut to the chase.... is there any way to stop this without damaging the coin? is there a way to neutralize this action? Thanks for any feedback...

 

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Bad Thad's Verdicare is good for that.

 

Don't know the name, but seriously? is there a cure? I thought of a ph neutralizing agent, perhaps using a zinc solution, or silver iodide. create a ph which stunts or eliminates the growth. there has to be some way?

 

http://www.wizardcoinsupply.com/products/verdi-care.html

 

Not sure but @Insider would probably like to respond to you on this.

Or possibly:

 

Bad that is a genius with metals. He invented Verdicare for copper coins. It will remove most, if not all, of the verdigris (that green corrosion you wrote of) and leave a coating that will help to keep it from growing again. Be sure to FOLLOW THE DIRECTIONS on the label.

 

/thread

 

VerdiCare is great for verdigris, for larger scale treatment of a bunch of coins, consider: http://www.crescentcitycoinclub.org/seminars_and_programs/Bronze Disease.pdf

 

Thanks for the "tag" TJ!

 

Thanks

 

Thank you

 

most awesome, thanks for the info

 

+i

 

OK, cats out of the bag. Thanks for the link @Kentucky. Everything I know/do is probably in the paper as I didn't need to finish it - but I will tonight for sure. Many collectors/wholesalers/dealers of Ancient coin's know the "tricks."

NOW FAIR WARNING: If any of you start digging into your coins w/o EXPERIENCE, a steady hand, the right tools, AND A STEREO MICROSCOPE with fluorescent lighting you are going to RUIN them.

 

T appreciate it

 

yes I agree, but I remember soaking model t screwjacks in diesel...LOL

 

Works on silver plate over copper problems also, where the silver plate gets worn and verdigris starts.

 

@old49er do you have any pictures you can post?

 

Thanks,Ok I,m conviced got too get some to try. already tried the internet nada

 

Here's the link for Verdicare.
http://www.wizardcoinsupply.com/products/verdi-care.html