Mercury oxide can refer to:
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Mercury(I) oxide (mercurous oxide), Hg
2O
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Mercury(II) oxide
Mercury(II) oxide, also called mercuric oxide or simply mercury oxide, is the inorganic compound with the formula Hg O. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure. The mineral form montroydite is v ...
(mercuric oxide), HgO
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