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Another study yet again - this time a slightly different twist

Discussion in 'General Vaping Discussion' started by Impulso, Feb 23, 2018.

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  1. Impulso

    Impulso Super Member Verified Member ECF Veteran

    Nov 23, 2013
    Rocklin, ca
    • Like Like x 1
    • Informative Informative x 1
  2. bombastinator

    bombastinator ECF Guru Verified Member ECF Veteran

    Sep 12, 2010
    MN USA
    We knew that metal flakes Ni was a potential issue. It’s why you can’t dry burn Ti. What confuses me is where the lead came from. There shouldn’t BE any lead. Period. The Ni would be easy as would the Cr. Just dry burn nichrome wire.
    • Agree Agree x 1
  3. BoogaWu

    BoogaWu Super Member ECF Veteran

    Apr 22, 2016
    Lakewood, CO
    Most of the alloy charts for metals have a like .1% category for other metals, even for stuff like blade steels and precious metals. I haven't had time to go through the whole paper, but there is lead in everything, even tap water.
    • Like Like x 1
  4. ScottP

    ScottP Vaping Master Verified Member ECF Veteran

    Apr 9, 2013
    Houston, TX
    So a couple of points of interest. First the only wire material they state to have tested was Kanthal, so this may not even apply to other types, especially SS. Second they noticed higher concentrations with MORE frequent coil changes. This is opposite of everything we have been thinking thus far, with us previously thinking that cleaning and reusing a coil is worse than replacing it. It seems the opposite is in fact true. I would like to see them repeat the test using SS316L. If it is leeching anywhere near as bad, then we need to seriously need to rethink our cookware.
    • Informative Informative x 2
    • Like Like x 1
  5. Rossum

    Rossum Surly Curmudgeon Verified Member ECF Veteran

    Supporting member
    Dec 14, 2013
    NE FL
    This wasn't a study of any particular coil material(s). The researchers recruited vapers and had them bring in their devices and e-liquid. They asked the participants what their coils were made of. Some answered Kanthal while others stated they didn't know. Thus it seems likely that a substantial number of participants were using pre-built coil assemblies. Given the origin of virtually all such pre-built assemblies, I'm not terribly surprised that unexpected metals were found...
    • Agree Agree x 4
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