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Re: Mercury in Vermont

Posted By: SVP Neon Equipment
Date: Saturday, 10 February 2007, at 3:14 p.m.

In Response To: Re: Mercury in Vermont (Don Miner)

> O.K. Here is an idea whose time may be just
> around the corner, how about devising a way
> to inject mercury vapor directly into the
> tube while still on the manifold, just
> before filling with gas?
> Or maybe a mercury vapor flask simliar to
> the gas flasks we use for argon and neon.
> What do you think? Don

Did that in the early 80's. Dangerous at best and not very effective in the long run. After a short time the small amount of vapor that was admitted into the tube was cleaned up and the tube gradually got dimmer and dimmer until it was just the gas left.

Having a large quantity of mercury vapor present in the shop would not make me feel very comfortable. Not to mention OSHA would have a fit. The mercury would have to be heated to maintain a vapor. If the vessel broke, or was otherwise compromised, your shop would have to be quarantined and a team of toxic waste clean up specialist sent in to "hose" down the place. This is one reason why mercury diffusion pumps are rarely used any more in laboratory settings. They have been known to blow up (literally). When they do mercury vapor coats everything in the room with a nice gray color (condensed mercury). This happened one time at USC. It took several weeks to clean it up and almost an entire floor had to be sealed off until the clean up was finished.

Messages In This Thread

• Mercury in Vermont -- Dana -- Friday, 9 February 2007, at 9:28 a.m.
  • Re: Mercury in Vermont -- SVP Neon Equipment -- Friday, 9 February 2007, at 1:29 p.m.
    • Re: Mercury in Vermont -- Jay B. Little -- Friday, 9 February 2007, at 1:51 p.m.
      • Incandescent light bulb -- SVP Neon Equipment -- Friday, 9 February 2007, at 5:16 p.m.
    • Re: Mercury in Vermont -- John Anderson -- Friday, 9 February 2007, at 5:52 p.m.
      • Re: Mercury in Vermont -- Don Miner -- Friday, 9 February 2007, at 9:45 p.m.
        • Re: Mercury in Vermont -- SVP Neon Equipment -- Saturday, 10 February 2007, at 3:10 p.m.
      • Re: Mercury in Vermont -- Dana -- Saturday, 10 February 2007, at 5:49 a.m.
        • Re: Mercury in Vermont -- Gavin -- Saturday, 10 February 2007, at 6:44 a.m.
          • Re: Mercury in Vermont -- John Anderson -- Saturday, 10 February 2007, at 11:54 p.m.
      • Re: Mercury in Vermont -- SVP Neon Equipment -- Saturday, 10 February 2007, at 3:09 p.m.
      • Re: Mercury in Vermont -- Dana -- Monday, 12 February 2007, at 10:45 p.m.
  • Re: Mercury in Vermont -- TerryM -- Saturday, 10 February 2007, at 12:12 p.m.
    • Re: Mercury in Vermont -- Don Miner -- Saturday, 10 February 2007, at 2:08 p.m.
      • Re: Mercury in Vermont -- SVP Neon Equipment -- Saturday, 10 February 2007, at 3:14 p.m.
        • Re: Mercury in Vermont -- Dana -- Saturday, 10 February 2007, at 11:18 p.m.
        • Re: Mercury in Vermont -- Don Miner -- Sunday, 11 February 2007, at 12:02 a.m.
    • Re: Mercury in Vermont -- SVP Neon Equipment -- Saturday, 10 February 2007, at 3:12 p.m.
      • On second thought... -- SVP Neon Equipment -- Saturday, 10 February 2007, at 4:08 p.m.
        • Re: On second thought... -- Gavin -- Saturday, 10 February 2007, at 10:09 p.m.
          • Re: On second thought... -- SVP Neon Equipment -- Sunday, 11 February 2007, at 1:41 a.m.
            • Re: On second thought... -- Don Miner -- Sunday, 11 February 2007, at 8:23 p.m.
              • Re: On second thought... -- SVP Neon Equipment -- Sunday, 11 February 2007, at 9:16 p.m.
                • Re: On second thought... -- John Anderson -- Monday, 12 February 2007, at 6:09 p.m.
                  • Re: On second thought... -- SVP Neon Equipment -- Tuesday, 13 February 2007, at 12:52 p.m.
                    • Re: On second thought... -- Don Miner -- Tuesday, 13 February 2007, at 1:16 p.m.
                    • Re: On second thought... -- John Anderson -- Tuesday, 13 February 2007, at 4:03 p.m.
                      • Re: On second thought... -- SVP Neon Equipment -- Tuesday, 13 February 2007, at 4:54 p.m.
                        • Re: On second thought... -- Don Miner -- Wednesday, 14 February 2007, at 1:19 a.m.
                          • Re: On second thought... -- Dana -- Wednesday, 14 February 2007, at 2:35 a.m.

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