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Replies: 34 / Views: 4,566 |
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Pillar of the Community
United States
860 Posts |
The acids mentioned in relation to olive and nut oils is usually not present in the original product, what happens is that over a rather short period of time ( and months easily qualify), the molecules within the oil start to break down and produce organic acids ( somewhat weaker, but never-the-less acids) and then increasing the damaging reaction. But in perspective, olive oil is better than catsup, lemon juice, vinegar, which start out with a relative larger acid level and can damage immediately.
Oils such as machinery oils, have varying sulfur content and acid levels, this is why some use them to tone coins as well as clean them.
Since organic acid levels in olive oil can vary due to age and exposure to oxygen, some will have no problems, whereas others will have problems.
Jim
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Pillar of the Community
 United States
1151 Posts |
I just wanted to have some fun on a boring day in which I have nothing else to do.
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Pillar of the Community
United States
3592 Posts |
yankee, that is a good way to practice, on coins that have no numismatic value. You learn something and still retain bullion value.I say go for it.
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Pillar of the Community
 United States
1151 Posts |
Thanks, I think I will for practice because I have a beautiful 1955 half that has all kinds of gunk on the reverse.
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Bedrock of the Community
United States
20753 Posts |
Quote: I just wanted to have some fun on a boring day in which I have nothing else to do. There is always something to do if you have an imagination. And with coins too. Not sure how to find old posts but some of the moderators somehow find them. There was a post not to long ago about all the things people do and/or did with coins. If you could find that one, you could get enough ideas of what to do with coins to not get bored for a long, long time. Here is an idea. Place a penny in a jar of Battery Acid. Sulfuric if you could find some. Poof, no more penny. Everyone is trying to get rid of the cent and then you too could say you did your part. Quote: Since organic acid levels in olive oil can vary due to age and exposure to oxygen, some will have no problems, whereas others will have problems. Which is why we keep saying don't use Olive Oils. And as I mentioned, not all Olives are the same so you really have no idea what the end result may be and not just with an Acid content.
Edited by just carl 08/08/2011 1:22 pm
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Valued Member
273 Posts |
Just_carl, you are just_too_funny (your cent idea).
and on the cleaning thinking, the concensus is to not clean, so why clean... 'cepting, when I send a well worn indianhead cent to a 7 year old grandkid, I will polish it up a little... so they don't have to worry why gramps would send them a dirty ole penny... (gramps, is a little eccentric I guess)
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Valued Member
United States
299 Posts |
"There is no added acid in home made olive oil "
Not added certainly, but it occurs naturally, depending on too many various factors to list here. You get lucky when olive oil works for you.
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Bedrock of the Community
United States
20753 Posts |
Quote: "There is no added acid in home made olive oil "
Not added certainly, but it occurs naturally, depending on too many various factors to list here. You get lucky when olive oil works for you.
Appears you were trying to quote something. To do this simply highlight that and go to your edit thing at the top, click on that and click on copy. Then to to the little thing in the reply window that looks like a page with an arrow and click on that. A quote thing will now appear and put your cursor inbetween and click on edit and paste. As to acids in Olive Oils. Regardless of acids try to remember, as I pointed out previously, all man made substances vary to some extent and sometimes greatly. In other words you really have no idea of what is in most substances that are man made. And home made products do not have the strickter controls of a professional manufactuer so a home made product could contain so many variables that every attempt to make one similar is remotely improbable.
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Valued Member
273 Posts |
Quote: Appears you were trying to quote something. To do this simply highlight that and go to your edit thing at the top, click on that and click on copy. Then to to the little thing in the reply window that looks like a page with an arrow and click on that. A quote thing will now appear and put your cursor inbetween and click on edit and paste. Seeing if I can make this qoute thing work as described above. The thing is, something "natural" like olive oil contains whatever gets squeezed out of an olive, generally nature likes variety... so what is the chemical structure of olive oil?... who knows... because I have never seen a chemical analysis of olive oil and besides... different olives on different hillsides in different conditions yield different results naturally. And as the olive oil continues to oxidize, after being exposed to the air... then what happens. Again, who knows.
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Valued Member
273 Posts |
Nope. The quote thing still didn't work. maybe because "HTML is OFF"?
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Pillar of the Community
United States
860 Posts |
Just to complete the "oil" story, there is a synthetic clock oil, very expensive, which tests have shown have extremely small amounts of environmental chemicals such as sulfur ( unless you leave the top off) and will not corrode or gunk up for extended amount of time. I find my little container (2ml) much too expensive to experiment with it, so I will leave that to a well padded wallet. :)
Jim
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Moderator
 United States
188770 Posts |
Quote: Nope. The quote thing still didn't work. maybe because "HTML is OFF"? Nope... If you are using the Quick Reply box... Type [quote], paste the text you want to quote, then type [/quote]If you are using the 'Reply to Topic' link... Paste the text you want to quite, highlight it, then press the 'Insert Quote' button:  So this... [qu ote]Quoted Text[/qu ote] Looks like this... Quote: Quoted Text By the way, I fixed your post. 
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Bedrock of the Community
United States
19958 Posts |
Quote: The thing is, something "natural" like olive oil contains whatever gets squeezed out of an olive, generally nature likes variety... so what is the chemical structure of olive oil?... who knows... because I have never seen a chemical analysis of olive oil and besides... different olives on different hillsides in different conditions yield different results naturally. And as the olive oil continues to oxidize, after being exposed to the air... then what happens. Again, who knows.
You asked.... EVO is a mixture of many chemicals, mainly triglyceride which is three fatty acids attached to the glycerol molecule. Oleic acid (CH3(CH2)7CH=CH(CH2)7COOH) is present in high amounts in EVO, perhaps 50% or greater. Also present are Linoleic acid (< 10%) and Linolenic acid. There is also a small percentage of water. Being a natural product, it also contains other fatty acids, volatile organic compounds, vitamins, water- and oil-soluble organics compounds and finely ground olive. It's quite a mixture!
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Pillar of the Community
Australia
7096 Posts |
 Would Choji oil do the job? I use it on my Jap swords and it dosn't stain or corrode the steel. I might chuck a few old roman coins in some and try it
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Bedrock of the Community
United States
20753 Posts |
Quote: And as the olive oil continues to oxidize, after being exposed to the air... then what happens. Again, who knows.
WHAT? Your kidding of course. Why everyone knows what happens then. The pits are removed, miscellaneous other items are placed inside, Anchovies for one, then emersed in a glass. This glass is then filled with ice cubes and a touch of Vermuth and the rest is Vodka. Usually, but not always the Olives have a tooth pick in them so you can eat them later. Which brings up coins again. If you should follow the above statement and drink enough of those, all coins will look better and this has nothing to do with Olives or their Oils.
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Replies: 34 / Views: 4,566 |