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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How to use mercuric oxide in a sentence
Redissolve the precipitate in nitric acid, and boil the solution with mercuric oxide, which does not precipitate the ferric oxide.A Dictionary of Arts, Manufactures and Mines | Andrew Ure
Substances which burn with difficulty may be mixed with mercuric oxide in addition to copper oxide.
Chlorine monoxide results on passing chlorine over dry precipitated mercuric oxide.
The molecule of mercuric oxide and the atom of oxygen which it contains have the ratio 216: 16.An Elementary Study of Chemistry | William McPherson
The relative weight of the mercuric oxide molecule must therefore be the sum of these, or 216.An Elementary Study of Chemistry | William McPherson
British Dictionary definitions for mercuric oxide
a soluble poisonous substance existing in red and yellow powdered forms: used as pigments. Formula: HgO: Systematic name: mercury(II) oxide
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012