Cleaning Coins

Cleaning Coins

I looked at my coin collection, and I thought of something. Everyone said: “Just put them in vinegar” or “Cleaning them with soap is enough”. No. Those methods don’t work at all, my coins are still dirty. I’m going to need an experiment.

 

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My coin collection

 

The first beaker has hydrochloric acid, the second has sodium hydroxide.

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I’m going to use these two coins to test.

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It worked!

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Look at that! I put this coin in the hydrochloric acid for 1 second. Compare to the spot that didn’t touch the chemical.

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I put the coins into the sodium hydroxide, but it didn’t work.

I’m going to compare the coin that has been dipped into the acid.

The left coin: before I dipped it into the acid.

The other coin: after I dipped it in the acid.

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I dipped all of the coins from my collection, but it turns out that the acid created a reaction and made the coins black…20170827_103434

Well, I’m guessing we’re back at the starting point 😦

Conclusion: It didn’t work at all.

 

11 Comments »

  1. I guess the acid burns away some of the outer dirt?
    We used to clean our coins in dollops of HP sauce – you know, the tart brown sauce? I think the acid in the sauce did the trick and the coins didn’t go black.
    Also, some of your coins may be silver? You could use a good silver polish for them, and maybe some Brasso for the copper ones!

    Liked by 1 person

    • I don’t know, but if you want to use household items you can: dip them in vinegar, rubbing them with limes, rubbing them with erasers, or clean them dishwasher soap. I tried all of these and they didn’t the coins much, but these ways are good for people who don’t have strong chemicals (my chemical is so strong that I made the some coins turn black 😦 ).

      Liked by 1 person

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