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 Replies: 59 / Views: 8,884 |
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Pillar of the Community
 Australia
653 Posts |
Hi all Well, I have taken the 1 dollar and 5 cent pieces out of the various "swills" into which they have been immersed over the last week or so. I have taken a photo from directly above, and one at an angle. The latter to show which coins have maintained their shiny appearance. Note how the 1 dollar coins have been much more altered than the 5 cent coins. Rather than telling you which noxious pub swill caused the most damage to the coins, I would like you to guess  . So I have "whited out" the documentation in the photo's  . I have labelled the three most severely damaged / stained coins. See if you can guess which solutions have caused the damage: Answer 1: A= Pub swill (cigarette + Guinness + Dracula energy drink + Albertson's Soft Fruity White + Guava flavoured Cruiser), B = Guinness Beer, C = Bits of rusty iron in a salt solutionAnswer 2: A=Power Force Cleaner, B=Mr Muscle Cleaner, C=Hoyts PeppersAnswer 3: A = HP Sauce, B = Hot English Mustard, C = Finish Dishwashing PowderI will list the answer to all of the coins soon. There are a few surprises ! Squire   |
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Pillar of the Community
Australia
1005 Posts |
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Pillar of the Community
Australia
1244 Posts |
Wow scary results that some of those things cause icky damage.  |
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Valued Member
Australia
216 Posts |
I'm gonna say answer 2..
I think the cleaner has reacted with the Aluminum in the dollar coins.
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Pillar of the Community
Australia
653 Posts |
... thanks for the feedback and "having a go" in guessing the cause of coin damage, ozcoins and Peter S Thomas  . The answer is option 2. Actually, 3 is not such a bad guess, because I was surprised how corrosive "condiments" can be. I have attached the results of the "Pub Coin" experiment below. Of interest is the fact that the "Pub swill" and "Guiness" tests showed least change on the 1 dollar coin. Squire       |
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Pillar of the Community
Australia
1005 Posts |
Thanks for sharing your experiment with us!
Very interesting.
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Valued Member
Australia
176 Posts |
Great work Squire! Some impressive results. By the look of it good luck to anyone who likes Dr Peppers  Pedro |
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Pillar of the Community
Australia
1607 Posts |
Cool Squire,the Dr pepper & the Monster energy drink 5 cent pieces are very clean & shiny. The cleaner really react with the aluminium bronze coins & Dr peper & aluminium bronze are'nt a good mix either,looks like it was eating the coin. Very interseting to see what the different things do to different metals,thanks Squire |
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Pillar of the Community
Australia
653 Posts |
Thanks for the positive feedback  I shall inspect the coins closely one last time this evening and write up a short summary pertaining to "mystery of the pub coin"  Squire |
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Valued Member
Australia
215 Posts |
some interesting results you came up with.
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Valued Member
Australia
216 Posts |
Squire may be onto something here. That Monster Energy Drink 5cent looks pretty good. It has a nice colour to it.  |
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Pillar of the Community
Australia
653 Posts |
Summary of Pub Coin experiment: Overall the 1 dollar coins were altered to a greater extent than the 5 cent coins. Solutions that affected the 1 dollar coin strongly included the Power Force and Mr Muscle cleaners. Also the Hoyts Hot Peppers and HP sauce. Solutions that affected the 5 cent coins most strongly were Hot English mustard and Guinness. In particular: Both Power Force and Mr Muscle caused the 1 dollar coins to change colour as soon as I immersed these into the solution. Gas bubbles were also seen to be emitted from the surface of the coins. As mentioned by Peter S Thomas and appleangel07, this is due to the aluminium in the 1 dollar coin. Because the "immune" 5 cent piece is composed of 75% copper 25% nickel, whereas the 1 dollar coin is 92% copper 6% aluminium 2% nickel. Some of the coins had the heavy alteration in particular areas. For example, the 1 dollar coins immersed in Hoyts Peppers and HP Sauce showed circular areas of alteration that match well with the diameter of a 5 cent coin. So, there appears to be a chemical reaction between the solution, the 1 dollar and the 5 cent coin. That is because I put both denominations into each solution -- simulating small change sitting amongst the swill on a bar counter. What does that mean about the origin of staining in "pub coins" ?. Well, beer, wine, high nicotine cigarettes, vodka lolly water etc. were not seen to be important. Nor "steroid-like" substances such as Dracula's energy drink. Staining to coins such as the 1 dollar "BAR" coin of appleangel07 is much more likely due to cleaning fluids. Perhaps the barmaid used extra strong "hospital grade" cleaner to remove the smell of "a big night out" from the establishment. And appleangel07's coin was caught in the crossfire ..... Comments anyone ? ... Squire |
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Valued Member
Australia
490 Posts |
Edited by steve - Oz 50c man
07/12/2012 7:03 pm
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Pillar of the Community
Australia
653 Posts |
Thanks steve ! I found the experiment very interesting, with some unexpected results. Thanks to all the Coin Community Family members for input to the thread Sooo...it seems the "pub swill" really makes a very nice "preservative" for 1 dollar coins. Just keep your favorite 1 dollar coins away from bar-staff in a "cleaning mood"  Squire PS. wow...my post number 200  |
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Replies: 59 / Views: 8,884 |
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Posted 07/05/2012 7:12 pm
