I agree with you. I have used, and will continue to use VerdiCare because 1) I trust Thad and 2) it works. What I am going after is some sort of dip to use for copper. I don't want to use vinegar, hot sauce or doggie doo, but I can get most chemicals and have some experience in using them.
You say Tarn-X is he harshest cleaner, harsher than EZest? They seem to be similar, at least from the MSDS.
If the coin isn't worth anything (do not do this with valuable coins), use electrolysis. Get an old phone charger, cut off the end, pull the two wires apart and strip about an inch off of the ends. Attach an alligator clip to each end. On one clip attach your coin, on another clip attach a bent spoon. Put them both in a glass of salt water, but make sure they aren't touching each other. Plug it in and wait. If the bubbles are coming off of the spoon, you have to reverse them. UNPLUG the charger, put the coin on the other clip, vice versa with the spoon, put them back in the water and plug it back in. This will create fumes, so have ventilation. When you are done, unplug the charger before touching anything else! Remember, plug IN last when starting, UNplug first when finished. Here is a video. In the video he should have changed the water each time he checked the coin.
It won't turn black. You're using a phone charger, which plugs into AC but converts to low voltage DC.
I just now did it with a 1910 wheat penny I found in a roll. It was covered with gunk and dirt. It was probably a metal detector find. I did the electrolysis and then put baking soda and water on it and rubbed the rest off with my finger. It came clean very easily. I barely had to use any pressure. The electricity loosens everything. It's now shiny and bright. The only reason I did it is because the penny is pretty much worthless. I'd say its grade is about an AG-03. I'd never do this to a coin that had any value.
I understand. In the old days we didn't have phone chargers. We took an old transformer and put an AC/DC bridge on it. You had to control the amps with the distance between the two wires. My post was a bit of a joke with some of the old guys that worked on coins that were dug up. If they had a great deal of crust on them, the coin would come out really dark or black.
I don't know, kinda liked filtering them through a dog. What do you do if you feed your dog a valuable coin, and it kills him without reissuing? Theres a situation I would not want to explain.
I hope all realize that the copper plated zinc cents can cause zinc toxicity and kidney damage in dogs. Cats are much smarter
I think you can probably keep it from turning black by using a different electrolyte solution instead of sodium chloride.
Get some of both, dip some coins. You'll immediately see the difference. As for how to dip copper, successfully, read my previous comments. I'm pretty sure you know how to figure it out
