- 関
- bromate
WordNet
- treat with bromine (同)brominate
- react with bromine (同)brominate
- street name for lysergic acid diethylamide (同)back breaker, battery-acid, dose, dot, Elvis, loony toons, Lucy in the sky with diamonds, pane, superman, window pane, Zen
- any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
- having the characteristics of an acid; "an acid reaction"
- relating to or containing bromine (especially pentavalent bromine)
PrepTutorEJDIC
- 酸性の / 酸味のある,すっぱい(sour) / (言葉・態度などが)厳しい,しんらつな / 酸 / すっぱいもの / 《俗》=LSD
Wikipedia preview
出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2016/06/08 23:58:22」(JST)
[Wiki en表示]
Bromic acid
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| Names |
| IUPAC name
Bromic acid
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| Other names
Bromic(V) acid
Hydrogen bromate
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| Identifiers |
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CAS Number
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7789-31-3 N[correct] |
| ChEBI |
CHEBI:49382 Y |
| ChEMBL |
ChEMBL1161635 Y |
| ChemSpider |
22853 Y |
| EC Number |
232-158-3 |
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Gmelin Reference
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25861 |
| Jmol 3D model |
Interactive image
Interactive image |
| MeSH |
Bromic+acid |
| PubChem |
24445 |
| RTECS number |
TP8580000 |
InChI
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InChI=1S/BrHO3/c2-1(3)4/h(H,2,3,4) Y
Key: SXDBWCPKPHAZSM-UHFFFAOYSA-N Y
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InChI=1/BrHO3/c2-1(3)4/h(H,2,3,4)
Key: SXDBWCPKPHAZSM-UHFFFAOYAE
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| Properties |
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Chemical formula
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HBrO3 |
| Molar mass |
128.91 g/mol |
| Acidity (pKa) |
−2 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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| N verify (what is YN ?) |
| Infobox references |
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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.[1][2] It is a colorless solution that turns yellow at room temperature as it decomposes to bromine.[1][3] Bromic acid and bromates are powerful oxidizing agents and are common ingredients in Belousov-Zhabotinsky reactions.[3][4] Belousov-Zhabotinsky reactions are a classic example of non-equilibrium thermodynamics.
Contents
- 1 Dissociation
- 2 Structure
- 3 Synthesis
- 4 References
Dissociation
Low concentrations dissociate completely to hydrogen 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.[5]
Structure
There are several isomers of HBrO3.[5][6] The calculated bond lengths are listed below based on three high level theories G2MP2, CCSD(T), and QCISD(T).[5]
| 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.[6]
Synthesis
Bromic acid is the product of a reaction of barium bromate and sulfuric acid.[1]
- Ba(BrO
3)
2 + H
2SO
4 → 2 HBrO
3 + BaSO
4
Barium sulfate is insoluble in water and forms a precipitate. The aqueous bromic acid can be decanted removing the barium sulfate.
References
- ^ a b c The Merck Index: An Encyclopedia of Chemicals, Drugs, and Biologicals. 14th Edition. 2006.
- ^ Van Nostrand's Scientific Encyclopedia. Glenn D. Considine. Ninth Edition. Volume 1. p 554
- ^ a b Recipes for Belousov-Zhabotinsky reagents. J. Chem. Educ., 1991, 68 (4), 320. DOI: 10.1021/ed068p320
- ^ 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+
- ^ a b c Theoretical investigation of halogen-oxygen bonding and its implications in halogen chemistry and reactivity. Bioinorganic Chemistry and Applications, 2007, 1, 11/1–11/9
- ^ a b A Theoretical Examination of the Isomerization Pathways for HBrO3 Isomers. J. Phys. Chem. A, 2000, 104 (41), 9321-27. DOI: 10.1021/jp001604s
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Hydrogen compounds
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- H3AsO3
- H3AsO4
- HAt
- HSO3F
- HBF4
- HBr
- HBrO
- HBrO2
- HBrO3
- HBrO4
- HCl
- HClO
- HClO2
- HClO3
- HClO4
- HCN
- HCNO
- H2CrO4/H2Cr2O7
- H2CO3
- H2CS3
- HF
- HFΟ
- HI
- HIO
- HIO2
- HIO3
- HIO4
- HMnO4
- H2MoO4
- HNC
- NaHCO3
- HNCO
- HNO
- HNO3
- H2N2O2
- HNO5S
- H3NSO3
- H2O
- H2O2
- H2O3
- H3PO2
- H3PO3
- H3PO4
- H4P2O7
- H5P3O10
- H2PtCl6
- H2S
- H2S2
- H2Se
- H2SeO3
- H2SeO4
- H4SiO4
- H2SiF6
- HSCN
- HNSC
- H2SO3
- H2SO4
- H2SO5
- H2S2O3
- H2S2O6
- H2S2O7
- H2S2O8
- CF3SO3H
- H2Te
- H2TeO3
- H6TeO6
- H4TiO4
- H2Po
- HCo(CO)4
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UpToDate Contents
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English Journal
- Dimeth-yl(2-oxo-2-phenyl-eth-yl)sulfanium bromide.
- Cao Z, Liu W, Yin F.AbstractSingle crystals of the title compound, C(10)H(13)OS(+)・Br(-), were obtained from ethyl acetate/ethyl ether after reaction of acetophenone with hydro-bromic acid and dimethyl-sulfoxide. The carbonyl group is almost coplanar with the neighbouring phenyl ring [O-C-C-C = 178.9?(2)°]. The sulfanium group shows a trigonal-pyramidal geometry at the S atom. The crystal structure is stabil-ized by C-H?Br hydrogen-bonding inter-actions. Weak π-π inter-actions link adjacent phenyl rings [centroid-centroid distance = 3.946?(2)?A].
- Acta crystallographica. Section E, Structure reports online.Acta Crystallogr Sect E Struct Rep Online.2010 Nov 17;66(Pt 12):o3197.
- Single crystals of the title compound, C(10)H(13)OS(+)・Br(-), were obtained from ethyl acetate/ethyl ether after reaction of acetophenone with hydro-bromic acid and dimethyl-sulfoxide. The carbonyl group is almost coplanar with the neighbouring phenyl ring [O-C-C-C = 178.9?(2)°]. The sulfanium g
- PMID 21589491
- Trace determination and chemical speciation of selenium in environmental water samples using catalytic kinetic spectrophotometric method.
- Chand V, Prasad S.SourceDivision of Chemical Sciences, Faculty of Science and Technology, The University of the South Pacific, Suva, Fiji.
- Journal of hazardous materials.J Hazard Mater.2009 Jun 15;165(1-3):780-8. Epub 2008 Oct 28.
- A catalytic kinetic method is described for the determination of Se(IV), Se(VI) and total inorganic selenium in water based on the catalytic effect of Se(IV) on the reduction of bromate by hydrazine dihydrochloride in acidic media. The generated bromine decolorized methyl orange (MO) and the reactio
- PMID 19091465
Related Links
- Bromic acid, HBrO3, is a bromine oxoacid. Its salts, the bromates, are powerful oxidizing agents in the solid state, much like the chlorates, and are used in specialty pyrotechnical mixtures. Bromic acid is a key reagent in the ...
Related Pictures
★リンクテーブル★
[★]
臭素酸、臭素酸塩
- 関
- bromic acid
[★]
- 英
- bromic acid、bromate
- 関
- 臭素酸塩
[★]
- 関
- hydrobromide、hydrogen bromide
