Trisha Shetty (Editor)

Strontium iodide

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Formula
  
SrI2

Boiling point
  
1,773 °C

Pubchem
  
25304

Molar mass
  
341.43 g/mol

Density
  
4.55 g/cm³

Strontium iodide httpsuploadwikimediaorgwikipediacommonsthu

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 + CO2

Strontium 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
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