Lithium bromide
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| Lithium bromide | |
|---|---|
| |
| Properties | |
| Molecular formula | LiBr |
| Molar mass | 86.845 g/mol |
| Appearance | White crystalline powder |
| Density | 3.464 g/cm3, Solid |
| Melting point |
552 °C |
| Boiling point |
1265 °C |
| Solubility in water | 177 g/100 ml (20°C) (dihydrate) |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references | |
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Overview
Lithium bromide, or LiBr, is a chemical compound of lithium and bromine. Its extreme hygroscopic character makes LiBr useful as a desiccant in certain air conditioning systems.[1]
Production and properties
LiBr is prepared by treatment of lithium carbonate with hydrobromic acid. The salt forms several crystalline hydrates, unlike the other alkali metal bromides.[1] The anhydrous salt forms cubic crystals similar to salt
Uses
Lithium bromide is used in air-conditioning systems as desiccant. Otherwise the salt is useful as a reagent in organic synthesis. For example it reversibly forms adducts with some pharmaceuticals.[1]
Medical applications
Lithium bromide was used as a sedative beginning in the early 1900s, but it fell into disfavor in the 1940s when some heart patients died after using it as a salt substitute.[1] Like lithium carbonate and lithium chloride it was used as treatment for Bipolar disorder.
Hazards
Lithium salts are psychoactive and somewhat corrosive. Dosages for lithium carbonate are ca. 200 mg/day.
References
External links
- A PDF file from GFS Chemicals, a supplier of lithium bromide. Retrieved on 2005-09-15.ar:بروميد ليثيوم
bs:Litijum bromid ca:Bromur de liti de:Lithiumbromid it:Bromuro di litio
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
