Names
Other names
Hydronium bromide
Identifiers
CAS Number: 10035-10-6
JSmol: Interactive image
ChEBI: CHEBI:47266
ChemSpider: 255
ECHA InfoCard: 100.240.772
EC Number: 233-113-0
PubChem: 260
RTECS number: MW3850000
UNII: 3IY7CNP8XJ
Properties
Chemical formula: HBr
Molar mass: 80.91
Appearance: colorless/faint yellow liquid
Odor: acrid
Density: 1.49 g/cm (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)
K: −9
Conjugate acid: Bromonium
Conjugate base: Bromide
Viscosity: 0.84 cP (-75 °C)
Thermochemistry
Specific
heat capacity: 29.1 J/K mol
Std molar
entropy: 198.7 J/K mol
Std enthalpy of
formation: -36.3 kJ/mol
Hazards
Safety data sheet: ICSC 0282
EU classification: C
R-phrases: R34 R37
S-phrases: (S1/2) S7/9 S26 S45
NFPA 704:
Flash point: Non-flammable
Related compounds
anions: Hydrofluoric acid
Related compounds: Hydrogen bromide
Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).Except where otherwise noted, data are given for materials in their(at 25 °C [77 °F], 100 kPa).
Infobox references
