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<p>[QUOTE=&quot;Jivvy, post: 839714, member: 8184&quot;]I was wondering the same thing. And then wondering why bakelite reacts.</p><p><br /></p><p>After reading a goodly bit of stuff that is over my head, my take is that the baking soda test is reliant on the molecular degradation of bakelite - what&#039;s being tested is the chemical composition of the degradation.</p><p><br /></p><p>And, because all plastics degrade (some more quickly than others), even non-bakelite plastics may also have a reaction with the baking soda.</p><p><br /></p><p>I did a boatload of testing tonight. Vintage red vulcanite definitely turned the qtip red.&nbsp; Nothing (that I have) from the 1980s forward had any reaction (not enough degradation?).</p><p><br /></p><p>In the picture below, the green bead showed no reaction and the red bead turned the qtip red. I do not know what plastic these are - I&#039;ve always felt they were too lightweight for bakelite.</p><p><br /></p><p>After the reading and the testing my take is this: I dunno what [USER=649]@bluumz[/USER] piece is. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie51" alt=":hilarious:" unselectable="on" unselectable="on" /></p><p><br /></p><p>[ATTACH=full]195153[/ATTACH][/QUOTE]</p><p><br /></p>

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