Yes, because I wanted to see an example of an acid dipped coin in my hand. Honestly allot of opinions make it out to be obvious when a coin is dipped and I disagree. I find the effects to be more subtle than I imagined and I now have a better reference of what to look for.
Yes, I have a food saver. I believe the packaging has plasticizers though. I gave up trying to test soft plastic for archiving.
Disagree all you want. What you are doing is obvious to those that understand the topic. That is because you do not understand how to properly dip a coin. Do it right and others will not notice it if you picked the proper coin to try and help. I hope you take the time to learn what you are doing. Few coins can be helped and it takes time to know if you should even mess with it.
No your wrong. I've been around here long enough to know that acetone, alcohol and soapy water are the preferred methods for coin preservation. I just had to try the acid after it being brought up in discussion so much. I'm glad you and everyone else in the world know how to point out an acid dipped coin. Which is not what you did in the beginning of this post and would have been much more impressive than criticizing the obvious after the fact. Thanks for sharing. It's not that difficult. And I understand. I'm not trying to trick anyone or make anyone look bad.
There are ways to use acids to clean base metals without removing surface material but it's an extremely precise procedure involving temperature control, stabilizers and inhibitors in addition to knowing exact composition of not only the impurities wanting to be removed but also the exact % of materials used in the affected base metal material. Your going to need a degree in chemistry with a fully stocked lab and analyzers. Not really something most people have access to or can afford to clean a coin when a bottle of acetone properly used will accomplish basically the same results, lol.
Let's try some good old distilled vinegar on this SBA mint... Wow! I've tried vinegar on coins before but never had much effect, only a minute or two for this coin...
You ask for opinions and I gave mine. Yes it was obvious that the coins were improperly dipped and there was no reason to say that. I posted that the coins now look cleaned. Please take the time to learn from those that have posted in this thread.
Many inventors and scientists only had access to trial and error. It doesn't matter here though. . These are simple methods and what most people have access too and time for, to make it net worthy. The more I do this, the more picky I get about my purchases. It's just too easy to bling out a coin. This isn't my first time here annoying the veterans.
Yes I am. And I have. You did say it's not appealing. I knew most would. I opened the thread expecting negativity.