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<p>[QUOTE=&quot;Boss, post: 519337, member: 15110&quot;]I am glad we have chemist on this site!!. I did a bunch of research last night and started a post (reply) and fell asleep so it&#039;s gone. I will start a new post in the near future.. Read a # of chemistry atricles and found mineral oil has a&quot; 0&quot; reactivity rating in the MSDS. It is used to save metallic equipment/gears and copper products in industrial equipment from oxidation and sheering damage. The science behind mineral oil is that oils have covalent bonding (equal attraction for one another) in long polymer carbon chains. Carbon when bonded to other carbon chains is extremely stable. Water and sulfur, chlorine, etc are ionic elements reacting with other ionic compounds and do not react with oils except in high temperature sitauations. Oils coat the coins and protect it from the elements. Yes they attract fine dust, but in a slab or airtite that is irrelevant- if you left the coin in a plastic flip- that&#039;s a different story. I don&#039;t like Blue Ribbon so far as it is so sticky- I have just played around with it and removed with acetone. Some will argue you trap the junk in the coins by putting on the oil. Yes, of course- they are coated and rendered inert from reacting with air-contaminants. I wil not except &quot;we learned in the 60&#039;s that oils were bad&quot;- sorry Doug. Some one needs to tell the old time EACers this because they have got it wrong for a long time. If someone can present an explanation of why oils are &quot;extremely harsh&quot; from a molecluar point of view I am all ears and will humbly accept the facts. I don&#039;t believe in authoritarian arguments, though speaking of that Q David Bowers has a very good section on this his book &quot;US Coin Colecting&quot; under the conservation section. I have had coins soaking in oils for years with no ill effects. I have completely removed verdigris and grime with no trace it was there. I am now going to conduct extensive research over the next couple of weeks and then start a post. No anamosity here- to those who disagree. Just a friendly discussion of the science behind your positions for or against.[/QUOTE]</p><p><br /></p>

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