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Hydrobromic acid information


Hydrobromic acid
Ball-and-stick model of hydrogen bromide
Ball-and-stick model of hydrogen bromide
Ball-and-stick model of water
Ball-and-stick model of water
Ball-and-stick model of the bromide anion
Ball-and-stick model of the bromide anion
Ball-and-stick model of the hydronium cation
Ball-and-stick model of the hydronium cation
Names
IUPAC name
Bromane[1]
Other names
Hydronium bromide
Bromhydric acid
Identifiers
CAS Number
  • 10035-10-6 checkY
3D model (JSmol)
  • Interactive image
ChEBI
  • CHEBI:47266 checkY
ChEMBL
  • ChEMBL1231461
ChemSpider
  • 255 checkY
ECHA InfoCard 100.240.772 Edit this at Wikidata
EC Number
  • 233-113-0
Gmelin Reference
620
KEGG
  • C13645
PubChem CID
  • 260
RTECS number
  • MW3850000
UNII
  • 3IY7CNP8XJ checkY
UN number 1048 1788
InChI
  • InChI=1S/BrH/h1H checkY
    Key: CPELXLSAUQHCOX-UHFFFAOYSA-N checkY
  • InChI=1/BrH/h1H
    Key: CPELXLSAUQHCOX-UHFFFAOYAZ
SMILES
  • Br
Properties
Chemical formula
HBr(aq)
Molar mass 80.91 g·mol−1
Appearance colorless liquid
(impure samples can appear yellowish)
Odor acrid
Density 1.49 g/cm3 (48% w/w aq.)
Melting point −11 °C (12 °F; 262 K) (47–49% w/w aq.)
Boiling point 122 °C (252 °F; 395 K) at 700 mmHg (47–49% w/w aq.)
Solubility in water
221 g/100 mL (0 °C)
204 g/100 mL (15 °C)
130 g/100 mL (100 °C)
Acidity (pKa) −9[2]
Viscosity 0.84 cP (−75 °C)
Thermochemistry
Heat capacity (C)
29.1 J/(K·mol)
Std molar
entropy (S298)
198.7 J/(K·mol)
Std enthalpy of
formation fH298)
−36.3 kJ/mol
Hazards
GHS labelling:
Pictograms
GHS05: CorrosiveGHS07: Exclamation mark
Signal word
Danger
Hazard statements
H314, H335
Precautionary statements
P260, P261, P264, P271, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P312, P321, P363, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazard ACID: Acid
3
0
0
ACID
Flash point Non-flammable
Safety data sheet (SDS) ICSC 0282
Related compounds
Other anions
Hydrofluoric acid
Hydrochloric acid
Hydroiodic acid
Related compounds
Hydrogen bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Hydrobromic acid is an aqueous solution of hydrogen bromide. It is a strong acid formed by dissolving the diatomic molecule hydrogen bromide (HBr) in water. "Constant boiling" hydrobromic acid is an aqueous solution that distills at 124.3 °C (255.7 °F) and contains 47.6% HBr by mass, which is 8.77 mol/L. Hydrobromic acid is one of the strongest mineral acids known.

  1. ^ Favre, Henri A.; Powell, Warren H., eds. (2014). Nomenclature of Organic Chemistry: IUPAC Recommendations and Preferred Names 2013. Cambridge: The Royal Society of Chemistry. p. 131. ISBN 9781849733069.
  2. ^ Bell, R. P. The Proton in Chemistry, 2nd ed., Cornell University Press, Ithaca, NY, 1973.

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Hydrobromide

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chemistry, a hydrobromide is an acid salt resulting, or regarded as resulting, from the reaction of hydrobromic acid with an organic base (e.g. an amine)...

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Sulfuric acid

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of sulfur, water, and hydrobromic acid as the electrolytic solution. The sulfur is pushed to bottom of container under the acid solution. Then the copper...

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hydrogen and bromine. A colorless gas, it dissolves in water, forming hydrobromic acid, which is saturated at 68.85% HBr by weight at room temperature. Aqueous...

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Acetyl bromide

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acetyl bromide hydrolyzes rapidly in water, forming acetic acid and hydrobromic acid. It also reacts with alcohols and amines to produce acetate esters...

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Rubidium bromide

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rubidium hydroxide with hydrobromic acid: RbOH + HBr → RbBr + H2O Another method is to neutralize rubidium carbonate with hydrobromic acid: Rb2CO3 + 2 HBr →...

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of two equivalents hypobromous acid (HBrO) results in the formation of both bromous acid (HBrO2) and hydrobromic acid (HBr):[citation needed] 2 HBrO →...

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are hydrochloric acid (HCl), hydroiodic acid (HI), hydrobromic acid (HBr), perchloric acid (HClO4), nitric acid (HNO3) and sulfuric acid (H2SO4). In water...

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Ammonium bromide

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Ammonium bromide, NH4Br, is the ammonium salt of hydrobromic acid. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes...

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Bromine

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hydronium cations. Hydrobromic acid forms an azeotrope with boiling point 124.3 °C at 47.63 g HBr per 100 g solution; thus hydrobromic acid cannot be concentrated...

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Flow battery

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low cell voltage (ca. 0.55 V) and a low energy density (< 4 Wh/L). Hydrobromic acid used as an electrolyte has been replaced with a less toxic alkaline...

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Hypobromous acid

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isolated as solids. Addition of bromine to water gives hypobromous acid and hydrobromic acid (HBr(aq)) via a disproportionation reaction. Br2 + H2O ↽ − ⇀ {\displaystyle...

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Allyl bromide

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use. Allyl bromide is produced commercially from allyl alcohol and hydrobromic acid: CH2=CHCH2OH + HBr → CH2=CHCH2Br + H2O It can also be prepared by the...

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Muscimol

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(10) with a 66% yield. Subsequent reflux of (10) with hydrobromic acid and acetic acid generated muscimol with a yield of 62%. The overall synthetic...

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HBR

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States Henley Boat Races Housing Bank of Rwanda Hydrogen bromide (HBr) Hydrobromic acid, a solution of hydrogen bromide in water Harbor This disambiguation...

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hydrochloric or hydrobromic acid as a side-product, which needs to be removed from the solution since they can reduce the selenic acid to selenous acid. To obtain...

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Iridium tetrabromide

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iridium metal and hydrobromic acid. Synthesis of iridium tetrabromide can be by solution of iridium(IV) oxide in hydrobromic acid: IrO2 + 4HBr → IrBr4...

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Strong electrolyte

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Strong Acids Perchloric acid HClO4 Hydriodic acid HI Hydrobromic acid HBr Hydrochloric acid HCl Sulfuric acid H2SO4 Nitric acid HNO3 Chloric acid HClO3...

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hydrolysis: Br2 + H2O → HOBr + HBr This forms hypobromous acid (HOBr), and hydrobromic acid (HBr in water). The solution is called "bromine water". The...

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