Wikipedia:WikiProject Chemicals/Chembox validation/VerifiedDataSandbox and Bromic acid: Difference between pages

| verifiedrevid = 477000756

| ImageFile1 = Bromic acid.svg

| ImageSize1 = 150px

| ImageName1 = Skeletal model of bromic acid

| ImageFile2 = Bromic-acid-3D-vdW.png

| ImageSize2 = 150px

| ImageName2 = Spacefill model of bromic acid

| IUPACName = Bromic acid

| OtherNames = Bromic(V) acid<br />

|Section1={{Chembox Identifiers

| InChI = 1/BrHO3/c2-1(3)4/h(H,2,3,4)

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 7789-31-3

| UNII_Ref = {{fdacite|correct|FDA}}

| UNII = 908X3OZ87J

| PubChem = 24445

| ChemSpiderID = 22853

| ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}}

| EINECS = 232-158-3

| MeSHName = Bromic+acid

| ChEBI_Ref = {{ebicite|correct|EBI}}

| RTECS =

| SMILES = O[Br+2]([O-])[O-]

| ChEMBL_Ref = {{ebicite|correct|EBI}}

| StdInChIKey_Ref = {{stdinchicite|correct|chemspider}}

| Gmelin = 25861}}

|Section2={{Chembox Properties

| H=1 | Br=1 | O=3

| Appearance =

| Density =

| Solubility =

| MeltingPt =

| BoilingPt =

| ConjugateBase = [[Bromate]]

| pKa = −2

| pKb =

| Viscosity =

|Section3={{Chembox Structure

| MolShape =

| Coordination =

| CrystalStruct =

| Dipole =

|Section7={{Chembox Hazards

| ExternalSDS =

| MainHazards =

| FlashPt =

|Section8={{Chembox Related

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'''Bromic acid''', also known as hydrogen bromate, is an [[oxoacid]] with the molecular formula HBrO₃. It only exists in [[aqueous solution]].<ref name="merck">''The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals''. 14th Edition. 2006.</ref><ref name="nostrand">''Van Nostrand's Scientific Encyclopedia''. Glenn D. Considine. Ninth Edition. Volume 1. p 554</ref> It is a colorless solution that turns yellow at room temperature as it decomposes to [[bromine]].<ref name=merck/><ref name="recipe">Recipes for Belousov–Zhabotinsky reagents. ''J. Chem. Educ.'', 1991, '''68''' (4), 320. [[doi:10.1021/ed068p320]]</ref> Bromic acid and [[bromate]]s are powerful oxidizing agents and are common ingredients in [[Belousov–Zhabotinsky reaction]]s.<ref name=recipe /><ref>The Source of the Carbon Monoxide in the Classical Belousov–Zhabotinsky Reaction. ''J. Phys. Chem. A.'', 2007, '''111''' (32), 7805–12 [[doi:10.1021/jp073512+]]</ref> Belousov-Zhabotinsky reactions are a classic example of [[non-equilibrium thermodynamics]].

==Dissociation==

Low concentrations dissociate completely to hydronium and bromate while high concentrations decompose to form bromine. Bromic acid's high instability can be explained because the positively charged hypervalent bromine is connected to the electronegative OH group.<ref name="halogen">Theoretical investigation of halogen-oxygen bonding and its implications in halogen chemistry and reactivity. ''Bioinorganic Chemistry and Applications'', 2007, '''1''', 11/1–11/9</ref>

==Structure==

There are several isomers of HBrO₃.<ref name=halogen/><ref name="isomer">A Theoretical Examination of the Isomerization Pathways for HBrO3 Isomers. ''J. Phys. Chem. A'', 2000, '''104''' (41), 9321-27. [[doi:10.1021/jp001604s]]</ref> The calculated bond lengths are listed below based on three high level theories G2MP2, CCSD(T), and QCISD(T).<ref name=halogen/>

{| class="wikitable"

|-

! Species !! HOOOBr !! HOOBrO !! HOBrO₂ !! HBrO₃

|-

| Br–O bridged (Å) || 1.867 || 1.919 || 1.844 || —

|-

| Br–O terminal (Å) || — || 1.635 || 1.598 || 1.586

|}

The large energy barriers between these structures do not make isomerization possible. HOBrO₂ is the most stable isomer and is the one pictured above.<ref name=isomer/>

==Synthesis==

Bromic acid is the product of a reaction of barium bromate and sulfuric acid.<ref name=merck/>

: {{chem2|Ba(BrO3)2 + H2SO4 -> 2 HBrO3 + BaSO4}}

Barium sulfate is insoluble in water and forms a precipitate. The aqueous bromic acid can be decanted removing the barium sulfate.

==References==

{{reflist}}

{{Hydrogen compounds}}

{{Bromine compounds}}

{{bromates}}

{{Authority control}}

[[Category:Bromates]]

[[Category:Halogen oxoacids]]

[[Category:Mineral acids]]

[[Category:Oxidizing acids]]