Beryllium iodide
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Beryllium iodide is the inorganic compound with the formula BeI2. It is a hygroscopic white solid.
Quick Facts Names, Identifiers ...
Names | |
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Systematic IUPAC name
Beryllium iodide | |
Identifiers | |
3D model (JSmol) |
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ChemSpider |
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ECHA InfoCard | 100.029.199 |
PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
BeI2 | |
Molar mass | 262.821 g/mol |
Appearance | colorless needle-like crystals |
Density | 4.325 g/cm3 |
Melting point | 480 °C (896 °F; 753 K) |
Boiling point | 590 °C (1,094 °F; 863 K)[1] |
reacts with water[1][citation needed] | |
Solubility | Slightly soluble in CS2 Soluble in ethanol, diethyl ether[2] |
Structure | |
orthorhombic | |
Thermochemistry | |
Heat capacity (C) |
71.14 J/(mol × K) |
Std molar entropy (S⦵298) |
130 J/mol K |
Std enthalpy of formation (ΔfH⦵298) |
-192.62 kJ/mol |
Gibbs free energy (ΔfG⦵) |
-210 kJ/mol |
Std enthalpy of combustion (ΔcH⦵298) |
19 kJ/mol |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards |
see Berylliosis |
NFPA 704 (fire diamond) | |
NIOSH (US health exposure limits): | |
PEL (Permissible) |
TWA 0.002 mg/m3 C 0.005 mg/m3 (30 minutes), with a maximum peak of 0.025 mg/m3 (as Be)[3] |
REL (Recommended) |
Ca C 0.0005 mg/m3 (as Be)[3] |
IDLH (Immediate danger) |
Ca [4 mg/m3 (as Be)][3] |
Related compounds | |
Other anions |
Beryllium fluoride Beryllium chloride Beryllium bromide |
Other cations |
magnesium iodide calcium iodide strontium iodide barium iodide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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