Strontium iodide

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IUPACName = Strontium iodide
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Section1 = Chembox Identifiers
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CASNo = 10476-86-5(anhydrous)
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RTECS = WK9275000
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Section2 = Chembox Properties
Formula = SrI₂ (anhydrous)
SrI₂·6H₂O (hexahydrate)
MolarMass = 341.43 g/mol (anhydrous)
Appearance = Colorless to white crystalline plates
Density = 5.459 g/cm³ (anhydrous)
4.415g/cm³ (hexahydrate)
MeltingPt = 507-645°C [Citation
last =
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editor-last= Turner, Jr.
editor-first=Francis M.
editor-link=
publication-date =
date =1920
year =
title =The Condensed Chemical Dictionary
edition =
volume =
series =
publication-place =New York
place =
publisher =The Chemical Catalog Company
id =
pages = 449
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doi =
oclc =
url =http://books.google.com/books?id=y8y0XE0nsYEC&pg=PA449&dq=%22Strontium+iodide%22+subject:%22Chemistry%22&as_brr=3
accessdate = 2007-12-10]
Melting_notes = decomposes
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Solubility = 64.0 g/100 ml (20°C)Citation
last =Seidell
first =Atherton
author-link =
last2 =
first2 =
author2-link =
publication-date =
date =1907
year =
title =Solubilities of Inorganic and Organic Substances
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publication-place =New York
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publisher =D. Van Nostrand
id =
pages = 318
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doi =
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url =http://books.google.com/books?id=7Y8AAAAAMAAJ&pg=PA318&dq=%22Strontium+iodide%22+subject:%22Chemistry%22&as_brr=3#PPA318,M1
accessdate = 2007-12-10]
SolubleOther = 3.1 g/100 ml (4°C)
Solvent = ethanol
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Section3 = Chembox Structure
CrystalStruct = Hexagonal
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Section7 = Chembox Hazards
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MainHazards = Corrosive
NFPA-H = Health=4
NFPA-F = Flammability=4
NFPA-R = Reactivity=4
NFPA-O = Other=OX
RPhrases = R14 R34
SPhrases = S22 S26 S27 S36/37/39S45 [ [http://www.sigmaaldrich.com/catalog/search/ProductDetail/ALDRICH/400696 400696 Strontium iodide anhydrous, beads, −10 mesh, 99.99+ % ] ]
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Section8 = Chembox Related
OtherAnions = strontium fluoride
strontium chloride
strontium bromide
OtherCations = calcium iodide
barium iodide
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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 [Citation
last =Shoemaker
first =John V.
author-link =
last2 =
first2 =
author2-link =
editor-last=
editor-first=
editor-link=
publication-date =
date =1908
year =
title =A Practical Treatise on Materia Medica and Therapeutics
edition =Seventh
volume =
series =
publication-place =Philadelphia
place =
publisher =F. A. Davis
id =
pages = 854
isbn =
doi =
oclc =
url =http://books.google.com/books?id=E-1xq8ScRD8C&pg=RA1-PA854&dq=%22Strontium+iodide%22&as_brr=3
accessdate = 2007-12-10] .

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 [Citation
last =Bartley
first =Elias H.
author-link =
last2 =
first2 =
author2-link =
editor-last=
editor-first=
editor-link=
publication-date =
date =1898
year =
title =Text-book of Medical and Pharmaceutical Chemistry
edition =Fifth
volume =
series =
publication-place =Philadelphia
place =
publisher =P. Blakiston
id =
pages = 267-268
isbn =
doi =
oclc =
url =http://books.google.com/books?id=qdwUkA_aHWsC&pg=PA267&dq=%22Strontium+iodide%22+subject:%22Chemistry%22&as_brr=3#PPA267,M1
accessdate = 2007-12-10] .

References