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Beilstein test and a cappuccino.
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<p>[QUOTE="bruthajoe, post: 7996957, member: 108656"]I questioned this chemistry myself. A copper oxide is required and a copper wire heated in a flame will form a coating of copper oxide. Then applied or combined with the sample to be tested and again heated in a flame. A positive test is indicated by a green flame caused by the formation of a copper halide. The test does not detect fluorine/fluorides. It also can create harmful vapors.</p><p><br /></p><p> This is a good initial method to determine if the material could be a candidate for plasticizers. One article (which I can not find) claimed that only hard, brittle plastic that will crack after successive attempts to deform it, would not likely contain any plasticizers. I was able to bend this flip repeatedly and could not successfully "crack" it. </p><p><br /></p><p> I can not believe I did not consider this. You can certainly smell any off gassing of plastic products when they are fairly new. I did not try it and wish I did. Unfortunately the flips were shipped in... smelly plastic <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie15" alt=":arghh:" unselectable="on" unselectable="on" />. I will have to quarantine them into something inert for a few days and take a whiff.</p><p><br /></p><p>Also, I will continue what I started here. its a pretty simple test and I would like comparisons for my own curiosity. I will not be able to conclude or verify any results by doing it. I believe someone here can though. I would like to complete a thorough and proper demonstration and let the audience decide. Thanks for the tips![/QUOTE]</p><p><br /></p>
[QUOTE="bruthajoe, post: 7996957, member: 108656"]I questioned this chemistry myself. A copper oxide is required and a copper wire heated in a flame will form a coating of copper oxide. Then applied or combined with the sample to be tested and again heated in a flame. A positive test is indicated by a green flame caused by the formation of a copper halide. The test does not detect fluorine/fluorides. It also can create harmful vapors. This is a good initial method to determine if the material could be a candidate for plasticizers. One article (which I can not find) claimed that only hard, brittle plastic that will crack after successive attempts to deform it, would not likely contain any plasticizers. I was able to bend this flip repeatedly and could not successfully "crack" it. I can not believe I did not consider this. You can certainly smell any off gassing of plastic products when they are fairly new. I did not try it and wish I did. Unfortunately the flips were shipped in... smelly plastic :arghh:. I will have to quarantine them into something inert for a few days and take a whiff. Also, I will continue what I started here. its a pretty simple test and I would like comparisons for my own curiosity. I will not be able to conclude or verify any results by doing it. I believe someone here can though. I would like to complete a thorough and proper demonstration and let the audience decide. Thanks for the tips![/QUOTE]
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Beilstein test and a cappuccino.
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