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 Particle Zoo |

     80    

80 Hg Mercury

Transition metal, mass: 200.59 u, 7 stable isotopes (196, 198, 199, 200, 201, 202, 204), abundance rank (earth/space): 62/59

Click image to magnify. 6 grams pure mercury. Diameter of the inner disc: 2 cm.
Mercury Mercury
Mercury (latin hydrargyrum = liquid silver) is shiny and silvery and the only metal that is liquid at room temperature. It is known since ancient times, when it was believed to be something magical and a cure. It was used for various obscure things, like for decoration in fountains and even was drunk against constipation. More recently it was and still is used in thermometers and barometers and in amalgams as filling for our teeth. Elemental mercury is very toxic, so it should be avoided and not be used, if there are alternatives. Where mercury is released, it is a big problem for the environment.

Mercury in a medical thermometer Cinnabar
Left: mercury in an old medical thermometer. Original size in cm: 0.5 x 3
Right: about 1 cm large pieces of natural cinnabar or cinnabarite, mercury sulfide, HgS. Cinnabar is the most frequent mercury mineral. It is often used for artists' red color (vermilion). Cinnabar is hardly soluble in water and therefore quite safe to handle.


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