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mercury(Hg)
(murīkūr-e)
a chemical element, atomic number 80, atomic weight 200.59. Mercury forms two sets or classes of compounds: mercurous, in which a single atom of mercury combines with a monovalent radical, and mercuric, in which a single atom of mercury combines with a bivalent radical. Mercury and its salts can be absorbed by the skin and
mucous membranes to cause poisoning; see mercury poisoning. The mercuric salts are more soluble and irritant than the mercurous.
ammoniated mercury
a compound used as an antiseptic skin and ophthalmic ointment. It should be applied with caution, as excessive use may irritate
the skin and cause dermatitis.
mercury bichloride
an extremely poisonous compound formerly used in treatment of syphilis but now used only as a disinfectant.
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