Strontium iodide

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 .

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.