Mercury(II) oxide
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| Mercury(II) oxide | |
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| General | |
| Systematic name | Mercury(II) oxide |
| Other names | Mercuric oxide Montroydite |
| Molecular formula | HgO |
| Molar mass | 216.5894 g/mol |
| Appearance | Yellow or red solid |
| CAS number | [21908-53-2] |
| Properties | |
| Density and phase | 11.14 g/cm3, 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 | R35 |
| S-phrases | S1/2, S26, S37/39, S45 |
| NFPA 704 |
0
3
1
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| 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 |
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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.
[edit] 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.
[edit] External links
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