A new form of mercury oxide
1982; Elsevier BV; Volume: 17; Issue: 2 Linguagem: Inglês
10.1016/0025-5408(82)90144-1
ISSN1873-4227
Autores Tópico(s)Plasma Diagnostics and Applications
ResumoA new form of mercury oxide has been identified in the film produced by exposing a surface of pure mercury to the open air. The film material appears to be triclinic HgO with cell dimensions of a = 6.65, b = 5.54, c = 7.01 Å, α ∼90.1, β ∼90.4, γ ∼90.9° with 8 formula units per unit cell. The symmetry appears to be Pl̄ (No. 2), the eight mercury atoms occupying four non-equivalent sets in position 2i, ±(x, y, z): xyzHg10.0650.2510.106Hg20.6680.2560.116Hg30.0610.2590.640Hg40.6050.2460.630 Possible oxygen sites have been suggested on the basis of knowledge of other mercury (II) compounds containing oxygen. Exposing a mercury surface to air in a sealed vessel, agitating mercury in an oxifier and treating mercury (I) chloride with an alkaline solution all produce orthorhombic HgO. Agitating mercury in ozonised oxygen or in KMnO4 produces a mixture of orthorhombic HgO with some triclinic HgO. A similar result is obtained when mercury is exposed to the open air, then subsequently sealed off.
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