Barium chloride

Barium chloride
Names
Other names
Barium muriate
Muryate of Barytes
Barium dichloride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.704
EC Number
  • 233-788-1
RTECS number
  • CQ8750000 (anhydrous)
    CQ8751000 (dihydrate)
UNII
  • [Ba+2].[Cl-].[Cl-]
Properties
BaCl2
Molar mass 208.23 g/mol (anhydrous)
244.26 g/mol (dihydrate)
Appearance White solid
Density 3.856 g/cm3 (anhydrous)
3.0979 g/cm3 (dihydrate)
Melting point 962 °C (1,764 °F; 1,235 K) (960 °C, dihydrate)
Boiling point 1,560 °C (2,840 °F; 1,830 K)
31.2 g/100 mL (0 °C)
35.8 g/100 mL (20 °C)
59.4 g/100 mL (100 °C)
Solubility soluble in methanol, insoluble in ethanol, ethyl acetate
-72.6·10−6 cm3/mol
Structure
orthogonal (anhydrous)
monoclinic (dihydrate)
7-9
Thermochemistry
Std enthalpy of
formation ΔfHo298		 −858.56 kJ/mol
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 Acute Toxic
GHS labelling:
GHS06: Toxic
Danger
H301, H332
P261, P264, P270, P271, P301+P310, P304+P312, P304+P340, P312, P321, P330, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
3
0
0
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
78 mg/kg (rat, oral)
50 mg/kg (guinea pig, oral)
112 mg Ba/kg (rabbit, oral)
59 mg Ba/kg (dog, oral)
46 mg Ba/kg (mouse, oral)
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 0.5 mg/m3
REL (Recommended)
 TWA 0.5 mg/m3
IDLH (Immediate danger)
 50 mg/m3
Safety data sheet (SDS) NIH BaCl
Related compounds
Other anions
 Barium fluoride
Barium bromide
Barium iodide
Other cations
 Beryllium chloride
Magnesium chloride
Calcium chloride
Strontium chloride
Radium chloride
Lead 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

Barium chloride is a chemical substance. It is among the most important salts of barium. It is soluble in water. It is a poison. When it is heated, it gives a yellow or green color to the flame. It is hygroscopic, meaning that it attracts water from the air. It is mainly used to purify brine but applications include fireworks.

Barium chloride is toxic. Sodium sulfate may be an antidote.

References

  1. ↑ Chemical Recreations: A Series of Amusing and Instructive Experiments, which May be Performed with Ease, Safety, Success, and Economy ; to which is Added, the Romance of Chemistry : An Inquiry into the Fallacies of the Prevailing Theory of Chemistry : With a New Theory and a New Nomenclature. R. Griffin & Company. 1834. Archived from the original on 2023-03-13. Retrieved 2023-03-13.
  2. ↑ Handbook of Chemistry and Physics, 71st edition, CRC Press, Ann Arbor, Michigan, 1990.
  3. 1 2 "Barium (soluble compounds, as Ba)". Immediately Dangerous to Life or Health Concentrations. National Institute for Occupational Safety and Health.
  4. 1 2 3 NIOSH Pocket Guide to Chemical Hazards. "#0045". National Institute for Occupational Safety and Health (NIOSH).