Sodium bromide 1448322 225469746 2008-07-13T21:25:16Z YixilTesiphon 149668 {{Expand|article|date=May 2007}} {{Chembox new | Name = Sodium bromide | ImageFile = Sodium bromide.jpg <!-- | ImageSize = 150px --> | ImageName = Sodium bromide | ImageFile1 = Sodium-bromide-3D-ionic.png <!-- | ImageSize1 = 150px --> | ImageName1 = Sodium bromide | IUPACName = Sodium bromide | OtherNames = | Section1 = {{Chembox Identifiers | CASNo = 7647-15-6 }} | Section2 = {{Chembox Properties | Formula = NaBr | MolarMass = 102.894 g/mol | Appearance = White powder | Density = 3.21 g/cm³, solid | Solubility = 73.3 g/100 mL (20 °C)<br />116.0 g/100 mL (50 °C) | MeltingPt = 755 °C | BoilingPt = 1390 °C }} | Section7 = {{Chembox Hazards | ExternalMSDS = [http://www.physchem.ox.ac.uk/MSDS/SO/sodium_bromide.html External MSDS] | EUClass = mild irritant ('''I''') | RPhrases = {{R36}}, {{R37}}, {{R38}}. | SPhrases = {{S26}}, {{S37}}, {{S39}}. | FlashPt = Non-flammable. }} | Section8 = {{Chembox Related | OtherAnions = [[sodium chloride|NaCl]] | OtherCations = [[potassium bromide|KBr]] }} }} '''Sodium bromide''', also known as '''sedoneural'''<ref>http://www.jtbaker.com/msds/englishhtml/S3170.htm</ref> is a [[salt]] with the formula [[sodium|Na]][[bromine|Br]], widely used as an [[anticonvulsant]] and a [[sedative]] in the late 19th and early 20th centuries. Its action is due to the bromide ion ([[potassium bromide]] is equally effective).<ref>http://www.canine-epilepsy.com/Bromide.html</ref> It is a high-melting white, crystalline solid that resembles [[sodium chloride]]. It is a widely used source of the bromide ion. ==Principal chemical reactions== NaBr is widely used in [[organic synthesis]] as a [[nucleophile]] to convert [[organochlorine]] compounds to organobromine derivatives, which are more usefully (selectively) reactive. :NaBr + RCl → RBr + NaCl Sodium bromide can be used as a source of the [[chemical element]] [[bromine]]. This can be accomplished by bubbling [[chlorine]] gas through an aqueous solution of NaBr. As a source of [[HBr]], NaBr is treated with a strong, non-volatile acid: :NaBr + H<sub>3</sub>PO<sub>4</sub> → HBr + [[NaH2PO4|NaH<sub>2</sub>PO<sub>4</sub>]] HBr can also be oxidized to Br<sub>2</sub> using [[MnO2|MnO<sub>2</sub>]] or concentrated [[H2SO4|H<sub>2</sub>SO<sub>4</sub>]]. ==Other applications== *as a [[hypnotic]], [[anticonvulsant]], and [[sedative]] in [[medicine]]. As a source of the bromide ion, which is pharmacologically active, it is equivalent to [[potassium bromide]] (see this article for more complete discussion of this topic). *in [[photography]] *to establish a [[bromide]] [[ion]] reserve in a [[bromine]] spa ([[hot tub]]) antimicrobial treatment regimen. ==Safety== NaBr is harmful if swallowed or inhaled in large amounts, affecting the central nervous system, brain, and eyes (see [[potassium bromide]]). The chemical compound causes irritation to the skin, eyes and respiratory system. ==References== {{Unreferenced|date =September 2007}} <references/> ==External links== * [http://www.webelements.com/webelements/compounds/text/Na/Br1Na1-7647156.html Information about NaBr]. [[Category:Sodium compounds]] [[Category:Bromides]] [[Category:Metal halides]] [[Category:Salts]] [[Category:Inorganic compounds]] [[ar:بروميد صوديوم]] [[ca:Bromur de sodi]] [[de:Natriumbromid]] [[fr:Bromure de sodium]] [[it:Bromuro di sodio]] [[hu:Nátrium-bromid]] [[ja:臭化ナトリウム]] [[pl:Bromek sodu]] [[pt:Brometo de sódio]] [[ru:Бромид натрия]] [[ur:سوڈیئم برومائڈ]] [[zh:溴化钠]]