Beryllium iodide

Beryllium iodide is the inorganic compound with the formula BeI2. It is a hygroscopic white solid.

Beryllium iodide
Names
Systematic IUPAC name
Beryllium iodide
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.199
PubChem CID
UNII
  • InChI=1S/Be.2HI/h;2*1H/q+2;;/p-2 Y
    Key: JUCWKFHIHJQTFR-UHFFFAOYSA-L Y
  • InChI=1/Be.2HI/h;2*1H/q+2;;/p-2
    Key: JUCWKFHIHJQTFR-NUQVWONBAT
SMILES
  • I[Be]I
  • I[Be-2](I)([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1([I+]1)[I+][Be-2]1(I)I
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)
reacts with water
Solubility Slightly soluble in CS2
Soluble in ethanol, diethyl ether
Structure
orthorhombic
Thermochemistry
71.14 J/(mol × K)
Std molar
entropy (S⦵298)
 130 J/mol K
Std enthalpy of
formation (ΔfH⦵298)
 -192.62 kJ/mol
-210 kJ/mol
19 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 see Berylliosis
NFPA 704 (fire diamond)
3
3
2
W
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)
REL (Recommended)
 Ca C 0.0005 mg/m3 (as Be)
IDLH (Immediate danger)
 Ca [4 mg/m3 (as Be)]
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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Infobox references
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