Lithium iodide
Template:Chembox 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.[1] It crystallizes in the NaCl motif.[2] It can participate in various hydrates.[3]
Applications
Lithium iodide is used as a solid-state electrolyte for high-temperature batteries. It is also the standard electrolyte in artificial pacemakers[5] due to the long cycle life it enables.[6] The solid is used as a phosphor for neutron detection.[7] 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:[8]
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.[9]
It is also useful in MALDI imaging mass spectrometry of lipids by adding lithium salts to the matrix solution.[10]
See also
References
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- ↑ 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"..
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- ↑ 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".
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External links
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