Strontium iodide
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| Strontium iodide | ||
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| IUPAC name Strontium iodide | ||
| Identifiers | ||
| CAS number | 10476-86-5 (anhydrous)  | |
| PubChem | 25304 | |
| EC number | 233-972-1 | |
| RTECS number | WK9275000 | |
| Jmol-3D images | {{#if:[Sr+2].[I-].[I-]|Image 1 | |
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| Properties | ||
| Molecular formula | SrI2 (anhydrous) SrI2·6H2O (hexahydrate) | |
| Molar mass | 341.43 g/mol (anhydrous) | |
| Appearance | Colorless to white crystalline plates | |
| Density | 4.55 g/cm³ (anhydrous)[1] 4.40 g/cm³ (hexahydrate)[1] | |
| Melting point | 507-645°C [2] | |
| Boiling point | 1773 °C (decomp) | |
| Solubility in water | 177.0 g/100 mL (20°C)[3] | |
| Solubility in ethanol | 3.1 g/100 ml (4°C) [3] | |
| Structure | ||
| Crystal structure | Orthorhombic, oP24 | |
| Space group | Pbca, No. 61 | |
| Hazards | ||
| R-phrases | R14 R34 | |
| S-phrases | S22 S26 S27 S36/37/39S45 [4] | |
| Main hazards | Corrosive | |
| NFPA 704 |
 0
1
0
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| Related compounds | ||
| Other anions | strontium fluoride strontium chloride strontium bromide | |
| Other cations | beryllium iodide magnesium iodide calcium iodide barium iodide | |
(verify) (what is: / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa) | ||
| Infobox references | ||
Strontium iodide (SrI2) is a salt of strontium and iodine. It is an ionic, water-soluble, and deliquescent compound that can be used in medicine as a substitute for potassium iodide .[5]
Reactions
Strontium iodide can be prepared by reacting strontium carbonate with hydroiodic acid:
Strontium iodide yellows when exposed to air. Pure Strontium is rather soft and malleable, and a freshly exposed surface has a pinkish or peachy color. It is used as a thermal conductor, an electrical conductor, a building material, and a constituent of various metal alloys. At high temperatures (when in the presence of air) strontium iodide completely decomposes to form strontium oxide and free iodine.[6]
References
- ↑ 1.0 1.1 Yaws, C.L. (2008). Thermophysical properties of chemicals and hydrocarbons. William Andrew. ISBN 978-0-8155-1596-8.
- ↑ Turner, Jr., Francis M., ed. (1920), The Condensed Chemical Dictionary, New York: The Chemical Catalog Company, p. 449, retrieved 2007-12-10
- ↑ 3.0 3.1
177 g/100 mL (20 °C) Seidell, Atherton (1907), Solubilities of Inorganic and Organic Substances, New York: D. Van Nostrand, p. 318, retrieved 2007-12-10 - ↑ 400696 Strontium iodide anhydrous, beads, −10 mesh, 99.99+ %
- ↑ Shoemaker, John V. (1908), A Practical Treatise on Materia Medica and Therapeutics (7th ed.), Philadelphia: F. A. Davis, p. 854, retrieved 2007-12-10
- ↑ Bartley, Elias H. (1898), Text-book of Medical and Pharmaceutical Chemistry (5th ed.), Philadelphia: P. Blakiston, pp. 267–268, retrieved 2007-12-10
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