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<p>[QUOTE="desertgem, post: 24620944, member: 15199"]Acetone is produced as a chemical breakdown reaction in humans lungs/blood from the breakdown of fats, so if overweight (fat) , don't breath on your coins! Acetone is organic and should not separately cause chemical reactions with metals. This was once a big industrial fight as which chemical was best to clean "oils" off of copper before soldering. Only one study ( paid for by a non-acetone using company found that color ( change in metallic characteristic ) was caused by acetoneand theirs didn't. I am in the group that feels pure acetone can not react with metals. It cleans Organic CRAP OFF OF COINS, but has never caused a color change for me. It's your personal decision as to use it or not, but ask a chemist if a organic can do that. Breathe on a fresh bright copper cent after burning fat and wait for it to turn color <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p>( info) I do not hold any stock of Acetone company and I breathe on coins all the time. Not trying to convert anyone, ask a chemist. Jim[/QUOTE]</p><p><br /></p>
[QUOTE="desertgem, post: 24620944, member: 15199"]Acetone is produced as a chemical breakdown reaction in humans lungs/blood from the breakdown of fats, so if overweight (fat) , don't breath on your coins! Acetone is organic and should not separately cause chemical reactions with metals. This was once a big industrial fight as which chemical was best to clean "oils" off of copper before soldering. Only one study ( paid for by a non-acetone using company found that color ( change in metallic characteristic ) was caused by acetoneand theirs didn't. I am in the group that feels pure acetone can not react with metals. It cleans Organic CRAP OFF OF COINS, but has never caused a color change for me. It's your personal decision as to use it or not, but ask a chemist if a organic can do that. Breathe on a fresh bright copper cent after burning fat and wait for it to turn color :) ( info) I do not hold any stock of Acetone company and I breathe on coins all the time. Not trying to convert anyone, ask a chemist. Jim[/QUOTE]
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