Barium chloride

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Barium chloride
Barium chloride watch glass sample.jpg
Barium chloride crystals.
Names
IUPAC name
Barium chloride
Other names
Barium dichloride
Barium muriate
Muryate of Barytes
Identifiers
Jmol-3D images Image
Properties
BaCl2
Molar mass 208.23 g/mol (anhydrous)
244.26 g/mol (dihydrate)
Appearance White crystalline solid
Density 3.856 g/cm3 (anhydrous)
3.0979 g/cm3 (dihydrate)
Melting point 962 °C (1,764 °F; 1,235 K) (anhydrous)
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, toluene
Vapor pressure ~0 mmHg
Thermochemistry
−858.56 kJ/mol
Hazards
Safety data sheet FisherScientific
Flash point Non-flammable
Lethal dose or concentration (LD, LC):
78 mg/kg (rat, oral)
50 mg/kg (guinea pig, oral)
Related compounds
Related compounds
Barium chlorate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Barium chloride is the inorganic compound with the formula BaCl2.

Properties

Chemical

Barium chloride reacts with sulfates to precipitate barium sulfate. This reaction is used in identifying the sulfate species in a sample. This also works with oxalates or carbonates.

Physical

Barium chloride is a white solid, soluble in water and methanol, but insoluble in ethanol and alkanes.

Availability

Barium chloride can be purchased online.

Preparation

Can be prepared by reacting barium carbonate with hydrochloric acid. The solution is concentrated by boiling it and is then left to cool, which causes the barium chloride to crystallize.

A good method of obtaining barium chloride from pottery-grade barium carbonate can be found here.

Projects

  • Sulfate test
  • Make green flame

Handling

Safety

Barium chloride, like the other water-soluble barium salts, is highly toxic if ingested. A soluble sulfate salt, such as sodium sulfate or magnesium sulfate can be used as antidotes, as they convert the soluble barium ions to the insoluble barium sulfate, which is relatively non-toxic.

Storage

Barium chloride should be stored in closed bottles.

Disposal

Barium chloride should be mixed with sodium sulfate or magnesium sulfate before disposal.

References

Relevant Sciencemadness threads