• spittingimage@lemmy.world
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    6 months ago

    Nine out of ten hatters recommend that you don’t do this. The tenth hatter purple monkey dishwasher.

    (Victorian-era hat makers were notorious for going mad because they used mercury to treat felt cloth.)

    • Akasazh@feddit.nl
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      6 months ago

      I wondered what the Mercury actually did with the felt, as I couldn’t think of anything from the top of my hat:

      Mercury made the felting process in hat production more efficient. The compound used to moisten the fibers was Mercury Nitrate, a process known as carroting. It produced a superior-quality felt, which in turn, resulted in higher-quality hats

      • SPRUNT@lemmy.world
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        6 months ago

        I think the original idiom was “mad as a hatter” which was eventually shortened to “mad hatter”, possibly due to the Alice in Wonderland character.

  • Frogodendron@beehaw.org
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    6 months ago

    Metallic elemental mercury (what you see in the picture) is relatively harmless to touch. Arguably, it’s more dangerous to rub a lead ingot, for example. However, mercury vapours (and mercury does evaporate slowly but consistently) absorb quite easily when you breath them with a ton of undesirable effects, often related to central nervous system, which is never a nice thing. Broken mercury thermometer won’t kill you. Playing with the puddle inside a non-ventilated room might kill you in several decades. Working in the non-open-air environment where mercury is always present will slowly worsen your health as mercury accumulates.

    Organic compounds of mercury are what actually is nasty. A short contact with a few millilitres of that — and you will have to recover for a long-long time, if ever. However, the scary stories about methylmercury rarely mention that there are other organic compounds that are just as toxic or worse. I wouldn’t get close to any organic cadmium compound, for example, and would be extremely wary of its inorganic salts too. The thing is it’s extremely unlikely that you encounter any of these chemicals ever in your life, and if you do encounter them, then you are likely a professional who knows exactly how and why you are to deal with them.

  • kowcop@aussie.zone
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    6 months ago

    When I was young my Dad bought me some mercury home from work… I loved how it moved when I shook the bottle and the weight of it.

    When I had my own kids I didn’t want it around, so our local council had set up a event where you could dispose of household liquids like old paints and solvents, so I took it down. When I drove up, the guy asked me what I was disposing of so I said mercury. It was bizarre. I was told to stay in the car and a guy came out of a shed in a full hazmat suit with one of those pairs of metal tongs to retrieve it from me.

    I remember Dad telling me that miners used to collect gold pan tailings in mercury and then of a night they would hollow out a potato and put the mercury in, and then put that in the camp fire… it would burn off the mercury and leave a little ingot of gold.

    • wahming@monyet.cc
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      6 months ago

      Probably because they didn’t know WHICH type of mercury you had. Organic mercury can kill on touch with a single drop. Best not to take chances.

      • lad@programming.dev
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        6 months ago

        I had to search for “organic mercury”, it’s dimethylmercury and it doesn’t look like mercury at all. Do people really call it “mercury” or “organic mercury”? It’s on par with pounds as a measure of mass, weight, and force by the amount of confusion, I’d say 🤔

        sad story

        that was in the top of search results about dimethylmercury: Wikipedia excerpt: Karen Elizabeth Wetterhahn (October 16, 1948 – June 8, 1997), also known as Karen Wetterhahn Jennette, was an American professor of chemistry at Dartmouth College, New Hampshire, who specialized in toxic metal exposure. She died of mercury poisoning at the age of 48 due to accidental exposure to the extremely toxic organic mercury compound dimethylmercury (Hg(CH3)2). Protective gloves in use at the time of the incident provided insufficient protection, and exposure to only a few drops of the chemical absorbed through the gloves proved to be fatal after less than a year. sad but also a bit ironic fate 🫡 that’s why I prefer not to do dangerous things even when protection and/or safety is in place.

      • DrRatso@lemmy.ml
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        6 months ago

        Its also harmless, generally, when ingested as the gastrointestinal absorption of elemental mercury is negligible. It is inhalation that is most concerning with elemental mercury.

        • ColeSloth@discuss.tchncs.de
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          6 months ago

          Except eating paint chips with lead made a lot of kids dumb. Lead based paint held up awesome, but it was banned due to injection. Not inhalation. Even now, 40+ years later it’s still the leading cause of lead poisoning in children.

            • ColeSloth@discuss.tchncs.de
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              6 months ago

              Oh, fuck me. Lol. I commented last night and then responded back today and in between my mind totally flipped to thinking it was about lead.