Lithium iodide

Lithium iodide
Template:Longitem	Template:Unbulleted list
ChEBI	Template:Unbulleted list
ChemSpider	Template:Unbulleted list
DrugBank	Template:Unbulleted list
EC Number	Template:Unbulleted list
KEGG	Template:Unbulleted list
Template:Longitem	Template:Unbulleted list
RTECS number	Template:Unbulleted list
	Script error: No such module "collapsible list".
	Script error: No such module "collapsible list".
Template:Longitem	LiI
Molar mass	133.85 g/mol
Appearance	White crystalline solid
Density	4.076 g/cm3 (anhydrous); 3.494 g/cm3 (trihydrate)
Melting point	Template:Chembox CalcTemperatures
Boiling point	Template:Chembox CalcTemperatures
Solubility	soluble in ethanol, propanol, ethanediol, ammonia
Solubility in methanol	3430 g/L (20 °C)
Solubility in acetone	426 g/L (18 °C)
Template:Longitem	Script error: No such module "val".
Template:Longitem	1.955
Template:Longitem	54.4 J mol−1 K−1
Template:Longitem	75.7 J mol−1 K−1
Template:Longitem	−270.48 kJ/mol
NFPA 704 (fire diamond)	Template:NFPA 704 diamond
Flash point	Template:Chembox CalcTemperatures
Template:Longitem	Lithium fluoride; Lithium chloride; Lithium bromide; Lithium astatide
Template:Longitem	Sodium iodide; Potassium iodide; Rubidium iodide; Caesium iodide; Francium iodide

Template:Chembox image cell Template:Chembox image cell Template:Chembox headerbar Template:Chembox Indexlist Template:Chembox Jmol Template:Chembox ChEMBL Template:Chembox ECHA Template:Chembox E number Template:Chembox IUPHAR ligand Template:Chembox UNII Template:Chembox CompTox Template:Chembox headerbar Template:Chembox SolubilityInWater Template:Chembox headerbar Template:Chembox DeltaGfree Template:Chembox headerbar Template:Chembox SDS Template:Chembox headerbar Template:Chembox Datapage check Template:Chembox Footer

Template:Chembox Footer/trackingScript error: No such module "TemplatePar".Template:Short description

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] It crystallizes in the NaCl motif.^[3] It can participate in various hydrates.^[4]

Applications

File:LiI@DWNT.png

LiI chains grown inside double-wall carbon nanotubes.^[5]

Lithium iodide is used as a solid-state electrolyte for high-temperature batteries. It is also the standard electrolyte in artificial pacemakers^[6] due to the long cycle life it enables.^[7] The solid is used as a phosphor for neutron detection.^[8] It is also used, in a complex with Iodine, in the electrolyte of dye-sensitized solar cells.

In organic synthesis, LiI is useful for cleaving C-O bonds. For example, it can be used to convert methyl esters to carboxylic acids:^[9]

Template:Chem2

Similar reactions apply to epoxides and aziridines.

Lithium iodide was used as a radiocontrast agent for CT scans. Its use was discontinued due to renal toxicity. Inorganic iodine solutions suffered from hyperosmolarity and high viscosities. Current iodinated contrast agents are organoiodine compounds.^[10]

It is also useful in MALDI imaging mass spectrometry of lipids by adding lithium salts to the matrix solution.^[11]

References

↑ Patnaik, Pradyot (2002) Handbook of Inorganic Chemicals. McGraw-Hill, Template:ISBN
↑ Script error: No such module "citation/CS1".
↑ Wells, A.F. (1984) Structural Inorganic Chemistry, Oxford: Clarendon Press. Template:ISBN.
↑ Wietelmann, Ulrich and Bauer, Richard J. (2005) "Lithium and Lithium Compounds" in Ullmann's Encyclopedia of Industrial Chemistry, Wiley-VCH: Weinheim. Script error: No such module "CS1 identifiers"..
↑ Script error: No such module "Citation/CS1".
↑ Script error: No such module "Citation/CS1".
↑ Script error: No such module "Citation/CS1".
↑ Script error: No such module "Citation/CS1".
↑ Charette, André B.; Barbay, J. Kent and He, Wei (2005) "Lithium Iodide" in Encyclopedia of Reagents for Organic Synthesis, John Wiley & Sons. Script error: No such module "CS1 identifiers".
↑ Script error: No such module "Citation/CS1".
↑ Script error: No such module "Citation/CS1".