Measuring the amount of lead (Pb) consumed when drinking from lead crystal glassware. Is it safe?

Comments · 1.1K

• CA

  @cancerix1700 · 3 years ago

  Dude is really putting master's thesis amount of work into a single YT video.

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• MU

  @Muonium1 · 3 years ago (edited)

  Note that the overwhelming majority of polyethylene produced in industry, while energetically favorable and exothermic in chemical formation, still requires an inorganic or organometallic catalyst to initiate at lower temperatures and pressures. Typically these are Ziegler-Natta catalysts based on aluminum <b>titanium chloride</b> , the Phillips catalyst of a <b>chromium oxide</b> silica gel complex, or <b>antimony oxide</b> . Invariably, due to the viscous nature of molten PE during production, much catalyst remains in the final product, and will thus leach the metal catalyst into whatever liquid the resulting plastic vessel contains. This is almost certainly what the dithizone is detecting in your plastic water container. Incidentally, the catalyst for PVC, which the spigot may be made of, is mercury chloride, and a common stabilizer used in PVC is <b>LEAD oxide</b> .

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• FA

  @FailedSquare · 3 years ago

  Applied Science is easily in the top 3 technical channels on youtube. He goes to such lengths and documents everything so well. He understands the topics so well he can explain them to about anyone. Chemistry, engineering, electronics… every video is a masterpiece lol

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• ES

  @Eskimos24 · 3 years ago

  Would have been cool to see if scrubbing the crystal freed up additional lead, to simulate regular dishwashing. Great content as always.

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• NU

  @nucleochemist · 3 years ago

  Regarding the plastic carboy: many plastics have organo-metallic additives or surface contaminates which are manufacturing additives. For example, mould release agents, and many other modifier agents. Often these are left on the surface of the plastic product in relatively large amounts, or can leach out slowly over time. We had a huge problem with tin (Sn) additives leaching out of plastics in one project I worked on.

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• TH

  @thethoughtemporium · 3 years ago

  Ah finally we see the &quot;I asked chatgpt and it was right&quot; project. I saw you post about it on twitter a while ago and wondered if it would ever show up in a video. Very interesting concept and now I understand how the heavy metal tests I&apos;ve used in the past work! Very cool

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• CO

  @combcomclrlsr · 3 years ago (edited)

  A joy to hear a video so well narrated.

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• SW

  @swabianscience · 3 years ago

  You might want to check tartaric acid/tartrate as an extraction solution. Tartaric acid is famous for being found in high doses in wine while also forming extremely stable, soluble complexes with lead, being able to dissolve even lead sulfate. So real wine could extract way more lead than just dilute acetic acid...

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• SI

  @silverXnoise · 3 years ago

  I use “grains per barleycorn” for maximal annoyance.

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• LA

  @lawrenceharris7717 · 3 years ago

  In the hospital lab they used a multi-stage deionizer and then all the water was distributed via tin pipes. I asked why not glass and was told the deionized water would leach all sorts of impurities out of the glass.

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• IT

  @iTeerRex · 3 years ago

  Although NileRed videos are fun, but this is how I’d like a research presentation. To go through all the aspects, mistakes and triumphs, math science and engineering, tip’s tricks and techniques, and so on. Thanks again Ben, and awesome video as always 👍

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• RE

  @redshifted8790 · 3 years ago

  <a href="https://www.youtube.com/watch?v=-cAB5FG4bXI&amp;t=420">7:00</a> &quot;so luckily I found a pretty good solution&quot; very nice pun

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