Strontium iodide

Strontium iodide
Names
	IUPAC name Strontium iodide
Identifiers
CAS Number	10476-86-5 (anhydrous) ;
3D model (JSmol)	Interactive image; Interactive image;
ChemSpider	23637;
ECHA InfoCard	100.030.871
EC Number	233-972-1;
PubChem CID	25304;
RTECS number	WK9275000;
UNII	F6V5HOR0O5 ;
CompTox Dashboard (EPA)	DTXSID10909176 ;
	InChI InChI=1S/2HI.Sr/h2*1H;/q;;+2/p-2;
	SMILES I[Sr]I; [Sr+2].[I-].[I-];
Properties
Chemical 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); 4.40 g/cm3 (hexahydrate)
Melting point	507 to 645 °C (945 to 1,193 °F; 780 to 918 K)
Boiling point	1,773 °C (3,223 °F; 2,046 K) (decomposes)
Solubility in water	177.0 g/100 mL (20 °C)
Solubility in ethanol	3.1 g/100 ml (4 °C)
Magnetic susceptibility (χ)	−112.0·10−6 cm3/mol
Structure
Crystal structure	Orthorhombic, oP24
Space group	Pbca, No. 61
Hazards
	Occupational safety and health (OHS/OSH):
Main hazards	Corrosive
	GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H314
Precautionary statements	P280, P305+P351+P338, P310
NFPA 704 (fire diamond)	1 0 0
Related compounds
Other anions	strontium fluoride; strontium chloride; strontium bromide
Other cations	beryllium iodide; magnesium iodide; calcium iodide; barium iodide
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) 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 . 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. In recent years, europium-doped strontium iodide (SrI₂:Eu²⁺) has emerged as a promising scintillation material for gamma-ray spectroscopy with extremely high light yield and proportional response, exceeding that of the widely used high performance commercial scintillator LaBr₃:Ce³⁺. Large diameter SrI₂ crystals can be grown reliably using vertical Bridgman technique and are being commercialized by several companies.

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