Beryllium chloride

Beryllium chloride is an inorganic compound with the formula BeCl2. It is a colourless, hygroscopic solid that dissolves well in many polar solvents. Its properties are similar to those of aluminium chloride, due to beryllium's diagonal relationship with aluminium.

Beryllium chloride
Names
IUPAC name
Beryllium chloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.197
PubChem CID
RTECS number
  • DS2625000
UNII
  • InChI=1S/Be.2ClH/h;2*1H/q+2;;/p-2 Y
    Key: LWBPNIJBHRISSS-UHFFFAOYSA-L Y
  • InChI=1/Be.2ClH/h;2*1H/q+2;;/p-2
    Key: LWBPNIJBHRISSS-NUQVWONBAX
SMILES
  • ionic depiction: [Be+2].[Cl-].[Cl-]
  • covalent monomer: Cl[Be]Cl
  • polymer: Cl[Be-2](Cl)([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1([Cl+]1)[Cl+][Be-2]1(Cl)Cl
Properties
BeCl2
Molar mass 79.9182 g/mol
Appearance White or yellow crystals
Density 1.899 g/cm3, solid
Melting point 399 °C (750 °F; 672 K)
Boiling point 482 °C (900 °F; 755 K)
15.1 g/100 mL (20 °C)
Solubility soluble in alcohol, ether, benzene, and pyridine
slightly soluble in chloroform and sulfur dioxide
Structure
hexagonal
Molecular shape
polymer
Thermochemistry
7.808 J/K or 71.1 J/mol K
Std molar
entropy (S298)
63 J/mol K
Std enthalpy of
formation fH298)
−6.136 kJ/g or -494 kJ/mol
-468 kJ/mol
16 kJ/mol
Hazards
Lethal dose or concentration (LD, LC):
LD50 (median dose)
86 mg/kg (rat, oral)
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 bromide
Beryllium iodide
Other cations
Magnesium chloride
Calcium chloride
Strontium chloride
Barium chloride
Radium chloride
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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