Barium chloride

Barium chloride
Names
	Other names Barium muriate; Muryate of Barytes; Barium dichloride
Identifiers
CAS Number	10361-37-2 ; 10326-27-9 (dihydrate) ;
3D model (JSmol)	Interactive image;
ChemSpider	23540 ;
ECHA InfoCard	100.030.704
EC Number	233-788-1;
PubChem CID	25204;
RTECS number	CQ8750000 (anhydrous) ; CQ8751000 (dihydrate);
UNII	0VK51DA1T2 ;
CompTox Dashboard (EPA)	DTXSID7044508 ;
	SMILES [Ba+2].[Cl-].[Cl-];
Properties
Chemical formula	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)
Solubility in water	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
Magnetic susceptibility (χ)	-72.6·10−6 cm3/mol
Structure
Crystal structure	orthogonal (anhydrous) ; monoclinic (dihydrate)
Coordination geometry	7-9
Thermochemistry
Std enthalpy of; formation ΔfHo298	−858.56 kJ/mol
Hazards
Main hazards	Acute Toxic
	0 3 0
Flash point	Non-flammable
U.S. Permissible; exposure limit (PEL)	TWA 0.5 mg/m3
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[change | change source]

↑ 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.
↑ Handbook of Chemistry and Physics, 71st edition, CRC Press, Ann Arbor, Michigan, 1990.
↑ NIOSH Pocket Guide to Chemical Hazards. "#0045". National Institute for Occupational Safety and Health (NIOSH).

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[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.

[PGCH-3] NIOSH Pocket Guide to Chemical Hazards. "#0045". National Institute for Occupational Safety and Health (NIOSH).

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