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<p>[QUOTE=&quot;Kentucky, post: 4592936, member: 33176&quot;]Guys, the Beilstein test is a test developed in 1872 and used by chemists since then.&nbsp; I have, myself, run the test literally hundreds of times!&nbsp; It is a test used in undergraduate classes.&nbsp; Burning a chlorine containing material such as PVC does not give a green flame.&nbsp; The chemical reaction of the copper or copper oxide with the chlorine in the PVC gives a chloride of copper that will give a green &quot;flame test&quot;.&nbsp; I honestly don&#039;t know if aluminum wire would work, but seeing the melting point of aluminum is 700 degrees Celsius lower than the melting point of copper, and knowing that copper wire melts in a bunsen burner flame, I don&#039;t think an aluminum wire would work well.&nbsp; [USER=11540]@ldhair[/USER] clean copper wire will not give a false positive.&nbsp; Burn the chloride off first.[/QUOTE]</p><p><br /></p>

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