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Revision as of 04:08, 11 February 2007
| Mercury(II) oxide | |||||
|---|---|---|---|---|---|
-oxide.jpg)
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| General | |||||
| Systematic name | Mercury(II) oxide | ||||
| Other names | Mercuric oxide | ||||
| Molecular formula | HgO | ||||
| Molar mass | 216.5894 g/mol | ||||
| Appearance | Yellow or red solid. | ||||
| CAS number | |||||
| Properties | |||||
| Density and phase | 11.14 g/cm, solid | ||||
| Solubility in water | Insoluble | ||||
| Melting point | 500 °C (596 K) | ||||
| Boiling point | N/A | ||||
| Basicity (pKb) | N/A | ||||
| Structure | |||||
| Coordination geometry |
? | ||||
| Crystal structure | ? | ||||
| Dipole moment | ? D | ||||
| Hazards | |||||
| MSDS | External MSDS | ||||
| EU classification | Toxic (T) | ||||
| R-phrases | Template:R35 | ||||
| S-phrases | Template:S1/2, Template:S26, Template:S37/39, Template:S45 | ||||
| NFPA 704 |
| ||||
| Flash point | Non-flammable. | ||||
| Supplementary data page | |||||
| Structure and properties |
n, εr, etc. | ||||
| Thermodynamic data |
Phase behaviour Solid, liquid, gas | ||||
| Spectral data | UV, IR, NMR, MS | ||||
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |||||
Mercury(II) oxide, also called mercuric oxide, has a formula of HgO and a formula weight of 216.6. It has a red or orange color. Mercury(II) oxide is a solid at room temperature and pressure.
Uses
HgO is sometimes used in the production of mercury as it decomposes quite easily.
It is also used as a material for anodes for mercury batteries.
External links
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