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 Replies: 30 / Views: 10,068 |
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Moderator
 United States
23522 Posts |
And thuiourea, in the hands of the uninformed, is the best way of assuring that you'll never have to worry about the value of your collection increasing.
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Bedrock of the Community
United States
19968 Posts |
Indeed Dave! A lot of coins have been ruined by people inexperienced in proper use.
Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
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Moderator
United States
56855 Posts |
If anyone tries this please post before and after pics. John1  |
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Pillar of the Community
United States
4333 Posts |
If you'd like a dull, lifeless coin, use that method.
I once dug an 1887 Morgan that came out of the ground brown.
Before cleaning it look a counterfeit.
After cleaning, proved it was a silver Morgan.
In that case, it worked. Tinfoil does the trick. And elbow grease lol ha!
When I listen to LED ZEPPELIN...so do my neighbors...
Roll hunting since '77
Dirt fishing since '72
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Bedrock of the Community
United States
20753 Posts |
Regardless of what you use to clean a coin, you must remember that almost anything on a coin has to some amount combined with the metal of that coin. This obviously means when you remove things like discolorations or other just STUFF on a coin, you will remove some of the metal of the coin. Baking Soda is a mild abrasive so regardless of what you mix it with, your going to be using an abrasive. This means small scratches aside from the removing of some of the metal. Yes Silver coins will appear much more looking like a new coin but that is rather deceiving due to so much dirt, tarnish, corrosion, etc. as well as Silver now gone. You would get the same or similar effects using Jewel cleaners from Walmart. Or even a mild Acid, Tomato or Lemon Juice, auto polish and cleaners and so many other things on the market. |
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Pillar of the Community
 United States
1215 Posts |
Baking soda does not remove silver. In fact, it adds silver.
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Moderator
United States
23522 Posts |
Quote:
Baking soda does not remove silver. In fact, it adds silver.
 Pray, tell, where does it get that silver from? And why is adding extra metal to a collectible coin better than taking it away? The end result is still not original. |
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Bedrock of the Community
United States
19968 Posts |
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Baking soda does not remove silver. In fact, it adds silver. As a scientist, I'd really like to know how you came about this conclusion? Lincoln Cent Lover!VERDI-CARE™ INVENTOR https://verdi.care/
Edited by BadThad
10/21/2014 10:35 am
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Bedrock of the Community
United States
17884 Posts |
Quote:
Baking Soda is a mild abrasive so regardless of what you mix it with, your going to be using an abrasive. This means small scratches aside from the removing of some of the metal. But baking soda is soluble in water so if you use enough water it will dissolve completely and you will not have an abrasive. Also the baking soda and aluminum foil method does not involve any rubbing on the coin so once again no abrasive action. |
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Pillar of the Community
Canada
2519 Posts |
Baking soda: NaHCO3
Where do you see Ag?
To my knowledge if the solution is acidic or basic, it will react with metal. Not so much with baking soda because it is not very basic and Na is more reactive then Ag, but it is still basic.
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Pillar of the Community
United States
1215 Posts |
update guys, I tried it out on my 1921-s AU details on Poor Morgan dollar... And the result is... An AU-53 Details Cleaned coin! I later discovered that my cleaning by itself did not do the "cleaning" damage, but that the coin had old cleaning to begin with, as evidenced by circular scratches on the fields-- just that the cleaning was obscured by heavy (unattractive) toning, so as to not allow me to see them. I think this cleaning was the best thing I could have done to this coin, as it leaves it true to its original, albeit wizzed state, and gives it a new chance to gain a better patina... hopefully a natural one over time in my 2*2. Overall, AU details over Poor becomes AU details over cleaned. I think this is a fair tradeoff. |
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Pillar of the Community
United States
1215 Posts |
I am pretty sure the cleaning marks are old ones and not newly created because a coin cleaning of this nature would never create such circular marks. As an engineering student, I am not oblivious about the chemistry of the reaction. Sorry-- what I meant was the reaction increases elemental silver. And badthad-- where can I get verdicare?
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Bedrock of the Community
United States
20753 Posts |
Quote:
Baking soda does not remove silver. In fact, it adds silver.  Quote:
But baking soda is soluble in water so if you use enough water it will dissolve completely and you will not have an abrasive. Also the baking soda and aluminum foil method does not involve any rubbing on the coin so once again no abrasive action. And I'll agree with that. If you use one ounce of Baking Soda to 500,000 gallons of water, not much abrasinveness.  Quote:
As a scientist, I'd really like to know how you came about this conclusion? It is really simple. You mix Baking Soda and Aluminum. Then put this in gasoline, add Fuel Oil, Acetone, Laquer Thinner, and a few drops of gun powder. Then light. Now you'll see Silvery Stars.   |
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Bedrock of the Community
United States
17884 Posts |
How using baking soda can add silver.
Take coin and polish it up with baking soda paste.
Sell it as UNC (or maybe even a matte proof) to someone with more money than knowledge.
Buy silver with the unwarranted profits.
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Pillar of the Community
United States
937 Posts |
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Overall, AU details over Poor becomes AU details over cleaned. I think this is a fair tradeoff. AU details over Poor? I do not think I ave heard of that grade before. Au details over cleaned? Genuine, Improperly Cleaned. I hope you enjoy this coin for many years to come. |
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Replies: 30 / Views: 10,068 |
First Page
Posted 10/20/2014 3:37 pm
