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Sodium hypobromite

Sodium hypobromite is the inorganic compound with the formula NaOBr. It is usually obtained as the pentahydrate, so the material that is usually called sodium hypobromite has the formula NaOBr • 5H2O. It is a yellow-orange solid that is soluble in water. It adopts a monoclinic crystal structure with a Br–O bond length of 1.820 Å.[1] It is the Na+ salt of OBr. It is the bromine analogue of sodium hypochlorite, the active ingredient in common bleach. In practice the salt is usually encountered as an aqueous solution.

Sodium hypobromite
Identifiers
  • 13824-96-9 Y
ECHA InfoCard 100.034.096
  • 23673712
UNII
  • ZU61C4V8RA Y
  • DTXSID40930039
Properties
BrNaO
Molar mass 118.893
Appearance orange solid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Sodium hypobromite arises by treatment of aqueous solution of bromine with base:[2]

Br2 + 2 NaOH → NaBr + NaBrO + H2O

It can be prepared in situ for use as a reagent, such as in the synthesis of 3-aminopyridine from nicotinamide[3] (Hofmann rearrangement).

References

  1. ^ Topić, Filip; Marrett, Joseph M.; Borchers, Tristan H.; Titi, Hatem M.; Barrett, Christopher J.; Friščić, Tomislav (2021). "After 200 Years: The Structure of Bleach and Characterization of Hypohalite Ions by Single-Crystal X-Ray Diffraction". Angew. Chem. Int. Ed. 60 (46): 24400–24405. doi:10.1002/anie.202108843. PMID 34293249. S2CID 236199263.
  2. ^ Schmeisser, M. (1963). "Sodium Hypobromite". In Brauer, Georg (ed.). Handbook of Preparative Inorganic Chemistry. Vol. 1 (2nd ed.). New York: Academic Press. pp. 310–311. ISBN 9780323161275.
  3. ^ Allen, C. F. H.; Wolf, Calvin N. (1950). "3-Aminopyridine". Organic Syntheses. 30: 3. doi:10.15227/orgsyn.030.0003.; Collective Volume, vol. 4, p. 45

sodium, hypobromite, inorganic, compound, with, formula, naobr, usually, obtained, pentahydrate, material, that, usually, called, sodium, hypobromite, formula, naobr, 5h2o, yellow, orange, solid, that, soluble, water, adopts, monoclinic, crystal, structure, wi. Sodium hypobromite is the inorganic compound with the formula NaOBr It is usually obtained as the pentahydrate so the material that is usually called sodium hypobromite has the formula NaOBr 5H2O It is a yellow orange solid that is soluble in water It adopts a monoclinic crystal structure with a Br O bond length of 1 820 A 1 It is the Na salt of OBr It is the bromine analogue of sodium hypochlorite the active ingredient in common bleach In practice the salt is usually encountered as an aqueous solution Sodium hypobromite IdentifiersCAS Number 13824 96 9 YECHA InfoCard 100 034 096PubChem CID 23673712UNII ZU61C4V8RA YCompTox Dashboard EPA DTXSID40930039PropertiesChemical formula Br Na OMolar mass 118 893Appearance orange solidExcept where otherwise noted data are given for materials in their standard state at 25 C 77 F 100 kPa Infobox references Sodium hypobromite arises by treatment of aqueous solution of bromine with base 2 Br2 2 NaOH NaBr NaBrO H2OIt can be prepared in situ for use as a reagent such as in the synthesis of 3 aminopyridine from nicotinamide 3 Hofmann rearrangement References Edit Topic Filip Marrett Joseph M Borchers Tristan H Titi Hatem M Barrett Christopher J Friscic Tomislav 2021 After 200 Years The Structure of Bleach and Characterization of Hypohalite Ions by Single Crystal X Ray Diffraction Angew Chem Int Ed 60 46 24400 24405 doi 10 1002 anie 202108843 PMID 34293249 S2CID 236199263 Schmeisser M 1963 Sodium Hypobromite In Brauer Georg ed Handbook of Preparative Inorganic Chemistry Vol 1 2nd ed New York Academic Press pp 310 311 ISBN 9780323161275 Allen C F H Wolf Calvin N 1950 3 Aminopyridine Organic Syntheses 30 3 doi 10 15227 orgsyn 030 0003 Collective Volume vol 4 p 45 Retrieved from https en wikipedia org w index php title Sodium hypobromite amp oldid 1122467055, wikipedia, wiki, book, books, library,

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