| Barium iodide[1] | |
|---|---|
| IUPAC name |
Barium iodide
|
| Other names | Barium iodide, anhydrous |
| Identifiers | |
| CAS number | 13718-50-8,(anhydrous) [7787-33-9] (dihydrate) |
| Properties | |
| Molecular formula | BaI2 (anhydrous) BaI2·2H2O (dihydrate) |
| Molar mass | 391.136 g/mol (anhydrous) 427.167 g/mol (dihydrate) |
| Appearance | White orthorhombic crystals (anhydrous) colorless crystals (dihydrate) |
| Density | 5.15 g/cm3 (anhydrous) 5.0 g/cm3 (dihydrate) |
| Melting point |
711°C (anhydrous) |
| Solubility in water | 221 g/100 mL |
| Solubility | soluble in ethanol, acetone |
| Structure | |
| Crystal structure | Orthorhombic, oP12, SpaceGroup = Pnma, No. 62 |
| Thermochemistry | |
| Std enthalpy of formation ΔfH |
-602.1 kJ·mol-1 |
| Hazards | |
| Main hazards | toxic |
| Related compounds | |
| Other anions | barium fluoride barium chloride barium bromide |
| Other cations | calcium iodide magnesium chloride strontium bromide |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) | |
| Infobox references | |
Barium iodide occurs in two forms, one anhydrous and the other hydrated. Both are white solids. When heated, hydrated barium iodide dehydrates and the anhydrous salt can be obtained.
References
 |
This article needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (May 2009) |
- ^ Lide, David R. (1998), Handbook of Chemistry and Physics (87 ed.), Boca Raton, FL: CRC Press, pp. 4–44, ISBN 0849305942
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