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  1. Kurt

    Need advice with distilled water or any kind of thinner for all vg.

    All of my DIYs are VG/water, with the only PG being in the flavoring. If I am using an unthinned VG-nic base, then the formula I use that gives good wicking and vapor is %flavor + %water = 20-22% So if I'm using a flavor at 5%, I use 15-17% water. In my Kayfun, where wicking is a bit more of...
  2. Kurt

    Nicotine Comparisons

    Yes, Liquid Barn sells both USA Liquid Nicotine and NicSelect. I got the NicSelect from EXC, however, since I wanted to get some other things there anyway. Glad I'm not the only one that detected a bleachy smell in the USA LN. I also catch it faintly when smelling the 18mg liquid I made from...
  3. Kurt

    Well, whoda thunk it???????????

    Good news, but this was posted already over the weekend. E-cig myths: Busted
  4. Kurt

    FEMA report on ecig hazards pdf

    I read a story recently in a chemistry periodical that demand for cheap Li-ion batteries for ecigs is so high that some Chinese factories are cutting back on quality control to keep up, especially in the clean rooms used for producing them. A speck of dust in the material can be all that is...
  5. Kurt

    Nicotine Comparisons

    You know my tastes well. For the money and overall satisfaction, hard to beat VT TH. Definitely my go to. Just got another batch into glass and cold storage. But what I would give for a nic like 2011 Box Elder. Of course its a bit hypocritical for me to complain that BE is gone now...
  6. Kurt

    Nicotine Comparisons

    For currently available nic, VT TH gives good pepper and TH for me. A lot to like about it. Virtually no taste to me, however quite satisfying all on its own. ECX NicSelect is also good, with a bit more taste and throat hit than VT TH. For more "rough" nics, with their own taste, most of what...
  7. Kurt

    Nicotine Comparisons

    Thanks for the responses! To be clear, I am interested in ZERO taste, not if it has a taste one may like or dislike. A few years ago this might be WL Ice or Premium Pure (might have that name wrong), or 2013 Alchem from NicVape. Now all I have experienced that is like this is VT Premium...
  8. Kurt

    Nicotine Comparisons

    Thanks. What do these abbreviations stand for, please?
  9. Kurt

    Nicotine Comparisons

    Question for all you invisible-nic connoisseurs: In your experience what nic currently available is the cleanest? I am looking for the least taste, TH and nasal pepper effect. One that comes to mind is VT Chemnovatic (premium, not TH nic). This would be for a research project I am putting...
  10. Kurt

    PG too expenisve. found Glycerol though. is it usable?

    If we assume the D in the formula is a typo, and is supposed be C, then the formula is ok, and it is glycerol (or gycerin, glycerine, 1,2,3-propanetriol, 1,2,3-trihydroxypropane, all the same compound). But a typo like that in a chemical formula is a bit concerning. Not where I would want to...
  11. Kurt

    Brad Rodu: Imaginary hobgoblins from e-cigarette liquid lab tests

    Bill: excellent find, and extremely important analysis from Rodu. The hyper-sensitivity of some types of cell cultures to e-vapor is something that makes in vitro studies very difficult and/or leads to conclusions that are often erroneously assigned to actual human usage. I am getting...
  12. Kurt

    Vaping Emits Less Formaldehyde than Previously Thought

    Vaping Emits Less Formaldehyde than Previously Thought Story about the Gillman/Kistler aldehyde study in Motherboard. I might be accused of duplicating a thread, but the title of the story, as well as the story itself, shows that there actually are fair and objective journalists out there, and...
  13. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    Unfortunately that is the way with most science today. Vested interests protect their own, amplify some data, remove other data, try to scare and fabricate, to suit their purposes. Its everywhere, not just with ecigs. I try to remain unbiased, but I am very biased towards making this...
  14. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    It can be, as I said, quite humbling. But valid and pointed questions like yours really are needed to push the science forward, however fallible it makes us feel, especially in this exploding field. I have decades of chemical research experience, but in this field I am a relative new-comer...
  15. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    A good but quite limited study is what I was going to say. They used what appears to be a CE-type tank atty. Not sure, but it looks like one. Might also be a bottom-coil. For the flavor decomp carbonyl analysis they used 4.8W and 1.8 second puffs, so very low power and very very short...
  16. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    Yikes, clicked post too soon. A moment please!
  17. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    Thank you, Kent! You are very correct, this study did look at thermal decomposition with flavors included. I absolutely should have remembered it, and I am very glad (and a bit humbled) that you brought it up. A good but
  18. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    Who is studying thermal decomposition products of flavors in e-liquids, and their toxicity?
  19. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    Let me clarify: I am hopeful and optimistic that well-built correctly-used PVs can show similar results as the NJoys, but until those studies are actually done, its conjecture.
  20. Kurt

    Effect of variable power levels on the yield of total aerosol mass and formation of aldehydes in e-

    That study used NJoys. Hardly representative of all ecigs, and not at all with those in our study. Are you saying that since we know about NJoys, we then immediately know about all vapor devices at all wattages? Its promising results, for sure, but I think generalizing to all vapor devices is...
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