Lithium iodide

Lithium iodide
Identifiers
CAS number	10377-51-2 Y, 17023-24-4 (monohydrate) 17023-25-5 (dihydrate) 7790-22-9 (trihydrate)
PubChem	66321
Properties
Molecular formula	LiI
Molar mass	133.85 g/mol
Appearance	White crystalline solid
Density	4.076 g/cm3 (anhydrous) 3.494 g/cm3 (trihydrate)
Melting point	459 °C
Boiling point	1171 °C
Solubility in water	151 g/100 mL (25 °C) 433 g/100 mL (100 °C) [1]
Solubility in methanol	343 g/100 mL (20 °C)
Solubility in acetone	42.6 g/100 mL (18 °C)
Refractive index (nD)	1.955
Thermochemistry
Std enthalpy of formation ΔfHo298	-2.02 kJ/g
Specific heat capacity, C	0.381 J/g K
Hazards
MSDS	External MSDS
EU Index	Not listed
Flash point	Non-flammable
Related compounds
Other anions	Lithium fluoride Lithium chloride Lithium bromide.
Other cations	Sodium iodide Potassium iodide Rubidium iodide Caesium iodide
Y (what is this?)  (verify) Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

Lithium iodide, or LiI, is a compound of lithium and iodine. When exposed to air, it becomes yellow in color, due to the oxidation of iodide to iodine.^[2]

Applications

Lithium iodide is used as an electrolyte for high temperature batteries. It is also used for long life batteries as required, for example, by artificial pacemakers. The solid is used as a phosphor for neutron detection.^[3] The chemical formula for Lithium iodide is LiI.

See also

• Lithium battery

References

1. ^ Pradyot Patnaik. Handbook of Inorganic Chemicals. McGraw-Hill, 2002, ISBN 0070494398
2. ^ "A PDF file from ESPICorp Inc., a supplier of lithium iodide" (PDF). http://www.espimetals.com/msds's/lithiumiodide.pdf. Retrieved 2005-09-16. 
3. ^ Some lithium iodide phosphors for slow neutron detection, K. P. Nicholson et al. Br. J. Appl. Phys. 6 104-106 (1955) doi:10.1088/0508-3443/6/3/311

External links

• "Webelements – Lithium Iodide". http://www.webelements.com/webelements/compounds/text/Li/I1Li1-10377512.html. Retrieved 2005-09-16.  -->
• "Composition of LITHIUM IODIDE - NIST". http://physics.nist.gov/cgi-bin/Star/compos.pl?matno=187. Retrieved 2006-02-03.  -->

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