Different between Mercury (II) oxide red and yellow

Submitted by admin on Wed, 11/07/2018 - 07:59

Mercury oxide(mercury oxide (II)) is an alkaline oxide, inorganic, chemical formula HgO, bright red or orange-red scaly crystal or crystalline powder, almost insoluble in water, insoluble in ethanol, at 500 ° C break down. Very toxic and irritating. Mercury oxide can be used to make other mercury compounds, as well as catalysts, pigments, antibacterial agents and electrode materials in mercury batteries.

Both Mercury (II) oxide red and Mercury (II) oxide yellow have different particle sizes, and red oxidized mercury has smaller particles. Both variants are orthorhombic and have an infinite chain structure in the same plane. Each mercury atom is almost linearly connected to the surrounding two oxygen atoms and coordinates with four oxygen atoms on adjacent chains. ∠O-Hg-O was 179° and ∠Hg-O-Hg was 107°.

A very rare K2HgI4 solution is reacted with a base to obtain a hexagonal oxidized mercury having a structure similar to that of an orthorhombic system, but the chains are not in the same plane but are spirally wound with each other.

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