Calcium bromide
Appearance
Names | |
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IUPAC name
Calcium bromide
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Other names
Calcium dibromide
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Identifiers | |
3D model (JSmol)
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ChemSpider | |
ECHA InfoCard | 100.029.240 |
PubChem CID
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RTECS number |
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CompTox Dashboard (EPA)
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Properties | |
CaBr2 | |
Molar mass | 199.89 g/mol (anhydrous) 235.98 g/mol (dihydrate) |
Appearance | Odorless, very hygroscopic colorless crystals sharp saline taste |
Density | 3.353 g/cm3 |
Melting point | 730 °C |
Boiling point | 1935 °C (anhydrous) 810 °C (dihydrate) |
125 g/100 mL (0 °C) 143 g/100 ml (20°C) 312 g/100 mL (100 °C) | |
Solubility in alcohol, acetone | soluble |
Acidity (pKa) | 9 |
Structure | |
rhomboid | |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Main hazards
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Decomposes on heating at high temperature producing toxic and corrosive fumes |
NFPA 704 (fire diamond) | |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose)
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4100 mg/kg (rat, oral) 1580 mg/kg (mouse, subcutaneous) |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Calcium bromide (CaBr2) is a chemical compound of calcium and bromine. In its solid state, it is a white powder. CaBr2 can be found in drilling fluids, neuroses medication, freezing mixtures, food preservatives, photography and fire retardants.[1]
When strongly heated in air, calcium bromide will produce calcium oxide and bromine.
- 2 CaBr2 + O2 → 2 CaO + 2 Br2
References
- ^ "Chemical Land 21". Retrieved 25 December 2008.
External links