Mercury(I) bromide
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| Names | |||
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| IUPAC name
Dimercury dibromide | |||
| Other names
Mercury(I) bromide Mercurous bromide | |||
| Identifiers | |||
3D model (JSmol) |
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| ChemSpider | |||
| ECHA InfoCard | 100.150.337 | ||
| EC Number |
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PubChem CID |
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| UNII | |||
| UN number | 1634 | ||
CompTox Dashboard (EPA) |
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| Properties | |||
| Hg2Br2 | |||
| Molar mass | 560.99 g/mol | ||
| Appearance | white to yellow tetragonal crystals | ||
| Odor | odorless | ||
| Density | 7.307 g/cm3, solid | ||
| Melting point | 405 °C (761 °F; 678 K) | ||
| Boiling point | ~ 390 °C (734 °F; 663 K) sublimes | ||
| 3.9 x 10−5 g/100 mL | |||
Solubility product (Ksp) |
6.4×10−23 | ||
| Solubility | insoluble in ether, acetone, alcohol | ||
| −28.6·10−6 cm3/mol | |||
| Structure | |||
| linear | |||
| Hazards | |||
| GHS labelling: | |||
| Danger | |||
| H300, H310, H330, H373, H410 | |||
| P260, P262, P264, P270, P271, P273, P280, P284, P301+P310, P302+P350, P304+P340, P310, P314, P320, P321, P322, P330, P361, P363, P391, P403+P233, P405, P501 | |||
| Flash point | non-flammable | ||
| Related compounds | |||
Other anions |
Mercury(I) fluoride Mercury(I) chloride Mercury(I) iodide | ||
Other cations |
Zinc bromide Cadmium bromide | ||
Related compounds |
Mercury(II) bromide | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references | |||
Mercury(I) bromide or mercurous bromide is the chemical compound composed of mercury and bromine with the formula Hg2Br2. It changes color from white to yellow when heated and fluoresces a salmon color when exposed to ultraviolet light. It has applications in acousto-optical devices.
A very rare mineral form is called kuzminite and has the chemical formula Hg2(Br,Cl)2.