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<p>[QUOTE=&quot;Cu101, post: 32431, member: 1890&quot;]--------------------------------------------------------------------------------</p><p>Originally Posted by dthigpen</p><p>Copper Wire and a Blow Torch.</p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>I read this on another forum.</p><p><br /></p><p><br /></p><p>The Beilstein test is a simple chemical test which is used to determine whether ~ a plastic contains pvc or polyvinylidene chloride. To carry out the test you will need a small propane torch and a copper wire (a ~ penny could also be used). Copper by itself burns cleanly but produces a green flame (copper chloride) when combined with a compound containing chlorine ( e.g., pvc)</p><p>Steps:</p><p>Heat the copper wire in the flame of the torch until it burns cleanly. This serves to bum off any unwanted residues that might be on the wire. Make sure that you hold the wire with pliers or an insulator to avoid injury. Touch the hot wire to the holder. Some of the holder will melt and be stuck to the wire. Be sure to hold the holder close to the air intake of the torch in order to draw away the fumes from the burning plastic. Put the wire back into the flame. If the flame bums yellow or clear, no pvc present. If the flame burns bright green, then some pvc is present.[/QUOTE]</p><p><br /></p>

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