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mercuric oxide

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mercuric oxide

–noun Chemistry.
a slightly crystalline, water-soluble, poisonous compound, HgO, occurring as a coarse, orange-red powder (red mercuric oxide) or as a fine, orange-yellow powder (yellow mercuric oxide): used chiefly as a pigment in paints and as an antiseptic in pharmaceuticals.
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Medical Dictionary

Main Entry: mercuric oxide
Function: noun
: either of two forms of a slightly water-soluble crystalline poisonous compound HgO: a : a yellow finelydivided powder obtained usually by precipitation from solutions of mercuric chloride and sodium hydroxide and used in antiseptic ointments b : a bright red coarse powder obtained byprecipitation from hot solutions or by heating a nitrate of mercury and used similarly to the yellow form
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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