Formula SrI2 Boiling point 1,773 °C Pubchem 25304 | Molar mass 341.43 g/mol Density 4.55 g/cm³ | |
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Appearance Colorless to white crystalline plates | ||
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 . It is also used as a scintillation gamma radiation detector, typically doped with europium, due to its optical clarity, relatively high density, high effective atomic number (Z=48), and high scintillation light yield.
Reactions
Strontium iodide can be prepared by reacting strontium carbonate with hydroiodic acid:
SrCO3 + 2 HI → SrI2 + H2O + CO2Strontium iodide yellows when exposed to air. At high temperatures (when in the presence of air) strontium iodide completely decomposes to form strontium oxide and free iodine.
References
Strontium iodide Wikipedia(Text) CC BY-SA