Bromide
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| Names | |||
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Systematic IUPAC name
Bromide
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| Identifiers | |||
24959-67-9 
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| 3D model (Jmol) | Interactive image | ||
| 3587179 | |||
| ChEBI |
CHEBI:15858 
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| ChEMBL |
ChEMBL11685
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| ChemSpider |
254
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| 14908 | |||
| KEGG |
C01324
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| PubChem | 259 | ||
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| Properties | |||
| Br− | |||
| Molar mass | 79.904 g mol−1 | ||
| Thermochemistry | |||
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Std molar
entropy (S |
82 J·mol−1·K−1 | ||
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Std enthalpy of
formation (ΔfH |
−121 kJ·mol−1 | ||
| Pharmacology | |||
| N05CM11 (WHO) | |||
| Pharmacokinetics: | |||
| 12 d | |||
| Related compounds | |||
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Other anions
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Fluoride |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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 (what is ?) |
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| Infobox references | |||
A bromide is a chemical compound containing a bromide ion or ligand. This is a bromine atom with an ionic charge of −1 (Br−); for example, in caesium bromide, caesium cations (Cs+) are electrically attracted to bromide anions (Br−) to form the electrically neutral ionic compound CsBr. The term "bromide" can also refer to a bromine atom with an oxidation number of −1 in covalent compounds such as sulfur dibromide (SBr2).
Bromide is present in typical seawater (35 PSU) with a concentration of around 65 mg/L, which is around 0.2% of all dissolved salts. Seafoods and deep sea plants generally have high levels of bromide, while foods derived from land have variable amounts.
One can test for a bromide ion by adding excess dilute HNO3 followed by dilute aqueous AgNO3 solution. The formation of creamy silver bromide precipitate confirms the existence of bromides.
Bromide compounds, especially potassium bromide, were frequently used as sedatives in the 19th and early 20th century. Their use in over-the-counter sedatives and headache remedies (such as Bromo-Seltzer) in the United States extended to 1975, when bromides were withdrawn as ingredients, due to chronic toxicity.
This use gave the word "bromide" its colloquial connotation of a boring cliché, a bit of conventional wisdom overused as a calming phrase, or verbal sedative.
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Wikipedia