Will Aqua Regea remove milk spots?
Bear
Posts: 18,953 ✭✭✭
Or should I just use a napkin?
There once was a place called
Camelot
Camelot
0
Comments
Aqua Regia
Aqua Regia is a mixture of hydrochloric acid and nitric acid. It can dissolve gold, which single acids alone cannot do. Here we see that each of the acids separately has no effect on the gold but a mixture of the two dramatically reacts with the gold. To three samples of gold are added (1) concentrated hydrochloric acid (2) concentrated hydrochloric and concentrated nitric acids and (3) concentrated nitric acid. The gold reacts only with the concentrated acid mixture which is referred to as aqua regia (royal water).
Stuart
Collect 18th & 19th Century US Type Coins, Silver Dollars, $20 Gold Double Eagles and World Crowns & Talers with High Eye Appeal
"Luck is what happens when Preparation meets Opportunity"
<< <i>Bear: Aqua Regia will dissolve Gold, so it should also take care of milk spots.
Aqua Regia
Aqua Regia is a mixture of hydrochloric acid and nitric acid. It can dissolve gold, which single acids alone cannot do. Here we see that each of the acids separately has no effect on the gold but a mixture of the two dramatically reacts with the gold. To three samples of gold are added (1) concentrated hydrochloric acid (2) concentrated hydrochloric and concentrated nitric acids and (3) concentrated nitric acid. The gold reacts only with the concentrated acid mixture which is referred to as aqua regia (royal water). >>
I was goning to ask bear WTF?, but you coverd all bases Stuart
Go BIG or GO HOME. ©Bill
Camelot
Stuart
Collect 18th & 19th Century US Type Coins, Silver Dollars, $20 Gold Double Eagles and World Crowns & Talers with High Eye Appeal
"Luck is what happens when Preparation meets Opportunity"
dont drink milk around your coins.
Use it if you want your coin to almost literally “go up in smoke.”
Edited to add: Or, you could use hydrofluoric acid and watch it dissolve your glass lab equipment, too.
www.brunkauctions.com
<< <i>At least the milk spots will be gone.
Well that's the ticket! Are you sending this into PCGS?
just use steelwool to get rid of any surface anomolies you might have on your damn coins.
now, wheres my $50K
<< <i>heres an idea.
dont drink milk around your coins.
Another thing women shouldn't breast feed their children around coins. Yaha
bummer.