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Cinnabar
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Photo by Rob Lavinsky
licensed as Creative Commons Attribution-Share Alike 3.0 Unported

Featured Article: wiki:cinnabar

Cinnabar

Properties

toxic, sweet, cooling.

Known Toxicity or Adverse Reactions

If cinnabar is heated to decomposition, it emits toxic fumes of hydrogen sulfide ( H2S ), oxides of sulfur ( SOx ) and oxides of mercury ( HgO ).
Cinnabar is insoluble and poorly absorbed from the gastrointestinal tract; it is chemically inert with a relatively low toxic potential when taken orally.
The provisional tolerable weekly intake of inorganic mercury is 4 µg/kg of body weight.
Absorbed mercury from cinnabar is mainly accumulated in the kidneys and resembles the disposition pattern of inorganic mercury.
Long term use of cinnabar can cause renal dysfunction.
The doses of cinnabar required to produce neurotoxicity are thousands of times higher than methylmercury.
Fetuses are the most susceptible to developmental effects of mercury and therefore cinnabar should never be used during pregnancy.
It should be noted that every person on earth is exposed to some mercury.
Some pharmaceuticals and vaccines use a small amount mercury known as ethylmercury. Ethylmercury passes through the body and small amounts are not considered a health risk.
page revision: 45, last edited: 16 Jul 2017 15:44
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