Old Roman Copper Coins Immersed In Olive Oil

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Author	Replies: 4 / Views: 3,383
Nic Pillar of the Community Philippines 1156 Posts	Posted 10/14/2010 05:31 am I have some old nice roman coins, copper ones, to take out the dirt and whatever, I immersed in first class virgin olive oil inside a 350mL pet mineral plastic water bottle and sealed it. However after 6 months, the coins looked ok but the water bottle had collapsed as if all the air had gone out of it, vacuum inside. when I opened the bottle air surged in and the bottle went back to its right form. I'm just curious why the bottle would collapse after some time, thanks for input about it Report this Post to the Staff

fcrazo Pillar of the Community United States 651 Posts	Posted 10/14/2010 1:54 pm Don't use plastic, use a glass container. Probably oxidation was at work here and used the oxygen and combined with something else. Report this Post to the Staff
DVCollector Bedrock of the Community United States 10045 Posts	Posted 10/14/2010 2:08 pm There could be thermal expansion at work here, if the bottle was originally capped at a higher temp. When the temperature lowered, so did the volume of the oil and air, collapsing the plastic bottle. Edited by DVCollector 10/14/2010 2:10 pm Report this Post to the Staff
CanadianCoinGuy Valued Member Canada 54 Posts	Posted 01/12/2011 5:42 pm Go see http://scotvscapitis.blogspot.com/2...ibuting.html Report this Post to the Staff
Earle42 Bedrock of the Community United States 10047 Posts	Posted 05/29/2011 8:26 pm You would probably use up a lot of oxygen if you were immersed in olive oil for 6 months too! seriously: Thermal and/or chemical reaction How much squash could a Sasquatch squash if a Sasquatch would squash squash? Download and read: Grading the graders Costly TPG ineptitude and No FG Kennedy halves https://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2 Report this Post to the Staff
	Replies: 4 / Views: 3,383

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