chemical compound From Wikipedia, the free encyclopedia
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.
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ECHA InfoCard | 100.030.704 | |
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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[2] | |
-72.6·10−6 cm3/mol | ||
Structure | ||
orthogonal (anhydrous) monoclinic (dihydrate) | ||
7-9 | ||
Thermochemistry | ||
Std enthalpy of formation ΔfH |
−858.56 kJ/mol | |
Hazards | ||
Main hazards | Acute Toxic | |
NFPA 704 |
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Flash point | Non-flammable | |
U.S. Permissible exposure limit (PEL) |
TWA 0.5 mg/m3[3] | |
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). | ||
verify (what is ?) | ||
Infobox references | ||
Barium chloride is toxic. Sodium sulfate may be an antidote.
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