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 Replies: 17 / Views: 6,153 |
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Moderator
 United States
56855 Posts |
Any chemists out there? I was wondering if there is a way I can make my own e z est coin cleaner and verdicare? Is there equivalents to those products? What about so called dollar general type jewelry cleaners,if I water it down? Reason I ask is,can't find verdi and ezest is costing too much. Thanks all. John1  |
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Bedrock of the Community
United States
10044 Posts |
Wow - EZEst is expensive online! My LCS, a couple years ago, sold me the typical container for only 4.00. The MSDS lists the EZEST active ingredients as being sulfuric acid (by weight 1-5%)and Thiourea (3-7% by weight). Thiourea can be had from Amazon at about 9.00 for 2 oz (incl S&H). The EZEST acid concentration is not on the MSDS. Car battery acid is 15-30%, while industrial is 70 and above. https://aervoe.com/_files/msds/EzEs...S%20Bulk.pdfCheap silver (dip) polish at Target, Connoisseurs® Silver Jewelry Cleaner, is 1-4% acid and 5-10% Thiourea (and the MSDS lists their acid as 93&). And it seems the main difference between it and EZEST is the silver polish has (less than 2%) surfactants added (lower survace tension between liquids and solids) https://connoisseurs.com/sds/Silver...-Cleaner.pdf So maybe EZEST found the attractants made their dip work too aggressively on silver? It also could be the EZEST acid concentration is less than the silver polish? It would be interesting to test whether or not the silver polish would be pretty much the same or not. Maybe watered down somewhat it would work the same? As to Verdi Care - BadThad alone knows the recipe. The MSDS simply says no hazardous chemicals used. Edited by Earle42
04/16/2019 3:38 pm
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Moderator
 United States
56855 Posts |
Thanks Earl. I paid about $5 for 5oz a few years ago,now it is way more than that. John1 |
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Rest in Peace
United States
18456 Posts |
John with over 26,000 posts under your belt , I'm surprised you even asked that question . Don't mess around with your coins . I would Use the right product .  |
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Moderator
United States
56855 Posts |
Thanks Tony. I was just trying to be frugal on the e z est,it almost doubled in price in the last few years. John1 |
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Moderator
Australia
16850 Posts |
Just a reminder: there is no such thing as a generic "coin cleaner". Coins are made of different metals, and you really should be using different solutions on each different coinasge metal. Something that works great on silver coins (eg. sulfuric acid/thiourea "dip" like E-z-est) is likely to be corrosive enough to ruin copper and bronze coins. For myself, I've had mixed results on removing bronze disease from bronze coins with ammonia-based solutions, and with EDTA-based solutions on both bronze and on base-silver (50%) coins. As always with chemicals which you plan on dunking your coins in, test it first, on coins that neither you nor anyone else would care about. Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis
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Moderator
United States
56855 Posts |
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As always with chemicals which you plan on dunking your coins in, test it first, on coins that neither you nor anyone else would care about. I have been conserving not cleaning some coins since 1971. I have had great results with e z est,diluted with distilled water on copper cents and silver as well. ( I am not recommending anyone clean coin) I have been at it for a long time and trial and error has got me to this point. John1 |
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Bedrock of the Community
United States
10044 Posts |
I join you on this one John. It just takes common sense, going slow, and trial on other coins (which I consider part of the common sense I mentioned). But just like everything else in this world nowadays, people tend to rush headlong into things resulting in problems.
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Moderator
United States
56855 Posts |
Thanks Earl,I agree with you. John1 |
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Pillar of the Community
Canada
9165 Posts |
I'm with both of you as well, I have been using Verdi-Care for almost a decade now with good results.
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Rest in Peace
United States
18456 Posts |
 ,I have been using Verdi-Care for 5 years for conservation of copper coins and light removal of surface crud . Very satisfied . I only use ez-est dip on uncirculated silver that has too much dark or black toning , and only for a few seconds .  |
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Moderator
United States
56855 Posts |
I am not disputing the validity of the two products,just the availability and prices. Both work well. John1 |
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Rest in Peace
United States
18456 Posts |
Verdi-Care at least over the last 2 years has been virtually unobtainable . I was lucky to purchase a large bottle just before it became unavailable . I wish Badthad who manufactures this product would post on here some useful information for all of us on the future availability of Verdi-Care , or if he is no longer affiliated with it at least let CCF community know that it will or no longer will be produced for the coin industry . Trying to PM BadThad is fruitless as he doesn't answer any attempts to contact him . |
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Moderator
United States
56855 Posts |
I have tried several times to PM BT,so I know what you mean. John1 |
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Bedrock of the Community
United States
20753 Posts |
I have been experimenting with cleaning coins for about 60 years now. The only thing I have found that I like best is spit then clean with distilled water. Anything stronger is to me, just a waste of money. And as a rule, I seldom bother even cleaning a coin.
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Pillar of the Community
5464 Posts |
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The only thing I have found that I like best is spit then clean with distilled water. I'd say you're not far off. I believe Saliva has been used to clean ancient and historic paintings over the years. |
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Replies: 17 / Views: 6,153 |
Posted 04/16/2019 3:35 pm
