ChemSpider 2D Image | Hydrogen bromide | HBr

Hydrogen bromide

  • Molecular FormulaHBr
  • Average mass80.912 Da
  • Monoisotopic mass79.926155 Da
  • ChemSpider ID255

More details:

Featured data source

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

10035-10-6 [RN]
10097-32-2 [RN]
37348-16-6 [RN]
Acide bromhydrique [French]
Acido bromhidrico [Spanish]
Acido bromidrico [Italian]
Bromowodor [Polish]
bromure d'hydrogene [French]
Bromure d'hydrogène [French] [ACD/IUPAC Name]
Bromwasserstoff [German]

Validated by Experts, Validated by Users, Non-Validated, Removed by Users

MW3850000 [DBID]
18710_FLUKA [DBID]
18720_FLUKA [DBID]
18735_FLUKA [DBID]
23828_FLUKA [DBID]
244260_SIAL [DBID]
248630_SIAL [DBID]
268003_SIAL [DBID]
  • Experimental Physico-chemical Properties
  • Miscellaneous
    • Appearance:

      Colorless gas with a sharp, irritating odor. [Note: Shipped as a liquefied compressed gas. Often used in an aqueous solution.] NIOSH MW3850000
      colourless gas with a pungent, suffocating odour OU Chemical Safety Data (No longer updated) More details
      colourless liquid with a strong irritating odour OU Chemical Safety Data (No longer updated) More details
    • Stability:

      Stable. Incompatible with strong bases, strong oxidizing agents, ammonia, ozone, fluorine, water, metals. Air and light sensitive. OU Chemical Safety Data (No longer updated) More details
      Stable. Incompatible with strong oxidizing agents, strong bases. Fumes in moist air. Take steps to ensure that suck-back into cylinder cannot occur. OU Chemical Safety Data (No longer updated) More details
    • Toxicity:

      Inorganic Compound; Non-Metal; Halogen; Bromide Compound; Industrial/Workplace Toxin; Synthetic Compound Toxin, Toxin-Target Database T3D1732
    • Safety:

      35-37 Alfa Aesar A14475, 10991, 14036, 36694
      7/9-20-23-26-36/37/39-45-60 Alfa Aesar A14475
      7/9-23-26-36/37/39-45-60 Alfa Aesar 10991, 14036, 36694
      8 Alfa Aesar A14475
      Danger Alfa Aesar A14475
      DANGER: CORROSIVE, burns skin and eyes Alfa Aesar A14475, 10991, 14036, 36694
      H314-H335 Alfa Aesar A14475
      P260-P303+P361+P353-P305+P351+P338-P301+P330+P331-P405-P501a Alfa Aesar A14475
      Safety glasses, gloves and good ventilation. OU Chemical Safety Data (No longer updated) More details
      Safety glasses, gloves and good ventilation. Do not use in the open laboratory. OU Chemical Safety Data (No longer updated) More details
    • First-Aid:

      Eye: Irrigate immediately (solution)/Frostbite Skin: Water flush immediately (solution)/Frostbite Breathing: Respiratory support Swallow: Medical attention immediately (solution) NIOSH MW3850000
    • Exposure Routes:

      inhalation, ingestion (solution), skin and/or eye contact NIOSH MW3850000
    • Symptoms:

      Irritation eyes, skin, nose, throat; solution: eye, skin burns; liquid: frostbite NIOSH MW3850000
    • Target Organs:

      Eyes, skin, respiratory system NIOSH MW3850000
    • Incompatibility:

      Strong oxidizers, strong caustics, moisture, copper, brass, zinc [Note: Hydrobromic acid is highly corrosive to most metals.] NIOSH MW3850000
    • Personal Protection:

      Skin: Prevent skin contact (solution)/Frostbite Eyes: Prevent eye contact (solution)/Frostbite Wash skin: When contaminated (solution) Remove: When wet or contaminated (solution) Change: No recommenda tion Provide: Eyewash (liquid), Quick drench (solution), Frostbite wash NIOSH MW3850000
    • Exposure Limits:

      NIOSH REL : C 3 ppm (10 mg/m 3 ) OSHA PEL ?: TWA 3 ppm (10 mg/m 3 ) NIOSH MW3850000
    • Chemical Class:

      A diatomic molecule containing covalently bonded hydrogen and bromine atoms. ChEBI CHEBI:22927, CHEBI:33117, CHEBI:47266, CHEBI:52743
      The stable isotope of bromine with relative atomic mass 78.918338, 50.69 atom percent natural abundance and nuclear spin 3/2. ChEBI CHEBI:22927, CHEBI:33117, CHEBI:47266, CHEBI:52743

Predicted data is generated using the ACD/Labs Percepta Platform - PhysChem Module, version: 14.00

Boiling Point: -67.0±9.0 °C at 760 mmHg
Vapour Pressure: 20219.0±0.1 mmHg at 25°C
Enthalpy of Vaporization: 19.9±3.0 kJ/mol
Flash Point:
Index of Refraction:
Molar Refractivity:
#H bond acceptors: 0
#H bond donors: 0
#Freely Rotating Bonds: 0
#Rule of 5 Violations: 0
ACD/LogP: 0.00
ACD/LogD (pH 5.5):
ACD/BCF (pH 5.5):
ACD/KOC (pH 5.5):
ACD/LogD (pH 7.4):
ACD/BCF (pH 7.4):
ACD/KOC (pH 7.4):
Polar Surface Area: 0 Å2
Surface Tension:
Molar Volume:

Predicted data is generated using the US Environmental Protection Agency�s EPISuite™

 Log Octanol-Water Partition Coef (SRC):
    Log Kow (KOWWIN v1.67 estimate) =  0.63

 Boiling Pt, Melting Pt, Vapor Pressure Estimations (MPBPWIN v1.42):
    Boiling Pt (deg C):  476.40  (Adapted Stein & Brown method)
    Melting Pt (deg C):  178.64  (Mean or Weighted MP)
    VP(mm Hg,25 deg C):  7.94E-009  (Modified Grain method)
    Subcooled liquid VP: 3.14E-007 mm Hg (25 deg C, Mod-Grain method)

 Water Solubility Estimate from Log Kow (WSKOW v1.41):
    Water Solubility at 25 deg C (mg/L):  3.785e+004
       log Kow used: 0.63 (estimated)
       no-melting pt equation used

 Water Sol Estimate from Fragments:
    Wat Sol (v1.01 est) =  38762 mg/L

 ECOSAR Class Program (ECOSAR v0.99h):
    Class(es) found:
       Neutral Organics

 Henrys Law Constant (25 deg C) [HENRYWIN v3.10]:
   Bond Method :   Incomplete
   Group Method:   Incomplete
 Henrys LC [VP/WSol estimate using EPI values]:  2.233E-014 atm-m3/mole

 Log Octanol-Air Partition Coefficient (25 deg C) [KOAWIN v1.10]:
  Can Not Estimate (can not calculate HenryLC)

 Probability of Rapid Biodegradation (BIOWIN v4.10):
   Biowin1 (Linear Model)         :   0.7090
   Biowin2 (Non-Linear Model)     :   0.8653
 Expert Survey Biodegradation Results:
   Biowin3 (Ultimate Survey Model):   3.0204  (weeks       )
   Biowin4 (Primary Survey Model) :   3.7310  (days-weeks  )
 MITI Biodegradation Probability:
   Biowin5 (MITI Linear Model)    :   0.4714
   Biowin6 (MITI Non-Linear Model):   0.5473
 Anaerobic Biodegradation Probability:
   Biowin7 (Anaerobic Linear Model):  0.8361
 Ready Biodegradability Prediction:   NO

Hydrocarbon Biodegradation (BioHCwin v1.01):
    Structure incompatible with current estimation method!

 Sorption to aerosols (25 Dec C)[AEROWIN v1.00]:
  Vapor pressure (liquid/subcooled):  4.19E-005 Pa (3.14E-007 mm Hg)
  Log Koa (): not available
   Kp (particle/gas partition coef. (m3/ug)):
       Mackay model           :  0.0717 
       Octanol/air (Koa) model:  not available
   Fraction sorbed to airborne particulates (phi):
       Junge-Pankow model     :  0.721 
       Mackay model           :  0.851 
       Octanol/air (Koa) model:  not available

 Atmospheric Oxidation (25 deg C) [AopWin v1.92]:
   Hydroxyl Radicals Reaction:
      OVERALL OH Rate Constant =   0.0000 E-12 cm3/molecule-sec
      Half-Life =   -------
   Ozone Reaction:
      No Ozone Reaction Estimation
   Fraction sorbed to airborne particulates (phi): 0.786 (Junge,Mackay)
    Note: the sorbed fraction may be resistant to atmospheric oxidation

 Soil Adsorption Coefficient (PCKOCWIN v1.66):
      Koc    :  14.3
      Log Koc:  1.155 

 Aqueous Base/Acid-Catalyzed Hydrolysis (25 deg C) [HYDROWIN v1.67]:
    Rate constants can NOT be estimated for this structure!

 Bioaccumulation Estimates from Log Kow (BCFWIN v2.17):
   Log BCF from regression-based method = 0.500 (BCF = 3.162)
       log Kow used: 0.63 (estimated)

 Volatilization from Water:
    Henry LC:  2.23E-014 atm-m3/mole  (calculated from VP/WS)
    Half-Life from Model River: 2.358E+010  hours   (9.826E+008 days)
    Half-Life from Model Lake : 2.573E+011  hours   (1.072E+010 days)

 Removal In Wastewater Treatment:
    Total removal:               1.86  percent
    Total biodegradation:        0.09  percent
    Total sludge adsorption:     1.77  percent
    Total to Air:                0.00  percent
      (using 10000 hr Bio P,A,S)

 Level III Fugacity Model:
           Mass Amount    Half-Life    Emissions
            (percent)        (hr)       (kg/hr)
   Air       2.27e-006       1e+005       1000       
   Water     36.9            360          1000       
   Soil      63              720          1000       
   Sediment  0.0702          3.24e+003    0          
     Persistence Time: 593 hr


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