Beryllium bromide
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| Names | |
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IUPAC name
Beryllium bromide
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| Identifiers | |
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3D model (Jmol)
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| ChemSpider | |
| ECHA InfoCard | 100.029.196 |
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PubChem CID
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| Properties | |
| BeBr2 | |
| Molar mass | 168.820 g/mol |
| Appearance | colorless white crystals |
| Density | 3.465 g/cm3 (20 °C) |
| Melting point | 508 °C (946 °F; 781 K)sublimes at 473 °C (883 °F; 746 K) |
| Boiling point | 520 °C (968 °F; 793 K) |
| Highly | |
| Solubility | soluble in ethanol, diethyl ether, pyridine insoluble in benzene |
| Structure | |
| Orthorhombic | |
| Thermochemistry | |
| 0.4111 J/g K | |
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Std molar
entropy (S |
9.5395 J/K |
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Std enthalpy of
formation (ΔfH |
-2.094 kJ/g |
| Hazards | |
| Main hazards | see Berylliosis |
| US health exposure limits (NIOSH): | |
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PEL (Permissible)
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TWA 0.002 mg/m3 C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be) |
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REL (Recommended)
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Ca C 0.0005 mg/m3 (as Be) |
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IDLH (Immediate danger)
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Ca [4 mg/m3 (as Be)] |
| Related compounds | |
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Other anions
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Beryllium fluoride Beryllium chloride Beryllium iodide |
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Other cations
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Magnesium bromide Calcium bromide Strontium bromide Barium bromide Radium bromide |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 (what is   ?) |
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| Infobox references | |
Beryllium bromide is the chemical compound with the formula BeBr2. It is very hygroscopic and dissolves well in water. The compound is a polymer with tetrahedral Be centres.
It can be prepared by reacting beryllium metal with elemental bromine at temperatures of 500 °C to 700 °C:
Beryllium bromide is also formed when treating beryllium oxide with hydrobromic acid:
It hydrolizes slowly in water: BeBr2 + 2 H2O → 2 HBr + Be(OH)2
Beryllium compounds are toxic if inhaled or ingested.
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