Arcane Laboratory Equipment

Discussion in 'Off-Topic' started by jpanhalt, Jul 27, 2016.

  1. jpanhalt

    Thread Starter AAC Fanatic!

    Jan 18, 2008
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    This piece of equipment was salvaged from a chemistry laboratory in the 1960's. Does anyone know how and for what it was used? No prizes, just fun.

    upload_2016-7-27_11-59-52.png

    The major diameter is a little more than 100 mm.

    John
     
  2. Kermit2

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    Feb 5, 2010
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  3. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    I did a further search based on @Kermit2 answer.

    http://www.naturalpigments.com/glass-muller-medium.html

    Bertus
     
  4. atferrari

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    Jan 6, 2004
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  5. jpanhalt

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    Jan 18, 2008
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    You guys are all very close. Yes, it was used for grinding and polishing. In the chemistry department, we used it to resurface the NaCl plates used for IR spectroscopy windows. IR studies at low temp (i.e., many of mine used liquid nitrogen cooling) always faced a problem with water condensation on the salt crystal windows.

    While it is often used to grind against a flat when making pigments, for surfacing a window, we held the stem and rotated/ground the NaCl crystal on top.

    Next question will be harder. ;) I have used Google image search a few times. I am amazed at how well it works.

    John
     
  6. wayneh

    Expert

    Sep 9, 2010
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    I used a muller similar to that! Can't remember why. :confused:
    My first gut reaction was that it was related to microscopy or spectroscopy and the salt crystal sounds right somehow. Too many years ago.
    Now my only use for mullers is cooking and cocktails.
     
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