Chemical Name: Hydrobromic Acid 48% / 52%/ 62%

Formula: HBr

CAS Number: 10035-10-6

HBr content: (%): 48-49

Molecular Weight: 80.9 g/mol

General info and Field of Use:
Hydrobromic Acid (HBr) is used as a source of Bromine in industrial syntheses.

It is a strong acid in aqueous solution, used for preparation of catalyst in PTA/PET production, electrolyte for energy storage, and as a hydrobromination agent in a broad range of organic processes (for Pharma and Agro applications).

Typical Properties:

Appearance Clear, colorless to yellow liquid, slowly darkening on exposure to air and light.
Odor Pungent
Melting point/range ca. -63°C
Boiling point/range 126 °C (47.63%)
Evaporation rate (ether=1) Not available
Vapor pressure 8 mmHg (25°C)
Vapor density 1.7
Solubility:Solubility in water For HBr 100%:221 gr/100ml at 0°C194 g/100ml at 20°C130 gr/100ml at 100°C
Solubility in other solvents Soluble in organic solvents and acetic acid
Partition coefficient(n-octanol/water) Log Kow : 0.63-1.03 (25°C) (HBr 100%)
Explosive properties Not explosive
Oxidizing properties Not oxidising


HBr 48%

HBr Content % Min – 48 Max – 49
Density 20/20 C° g/ml Min 1.488
Free Bromine (Br2) ppm Max 10
Chlorides (as Cl-) ppm Max 100

HBr 52%

HBr Content % Min 52 Max 53
Density 20/20 C° g/ml Min 1.53
Color APHA Max 50
Free Bromine (Br2) ppm Max 10
Chlorides (as Cl-) ppm Max 100

HBr 62%

HBr Content % Min 62
Density 20/20 C° g/ml Min 1.705
Free Bromine (Br2) ppm Max 50
Chlorides (as Cl-) ppm Max 100

Hydrobromic acid is supplied in the following packaging:

  • Drums
  • Intermediate Bulk Containers – IBCs
  • Bulk Truck Loads

Flammability and Exclusivity:
Hydrobromic acid is non-flammable and non-explosive. At high temperature it will release toxic fumes of hydrogen bromide.

LD50 (inhalation rate): HBr 100% 2,858 ppm/1h. Hydrobromic acid is corrosive to eyes, skin and mucous membranes. Actual inhalation may produce delayed pulmonary edema. Direct contact results in serious corneal and skin burns.

Storage & Handling:
Keep containers tightly closed and protected from physical damage. Use fluorinated vinyl chloride resins or polyethylene glass-coated equipment. Avoid breathing vapors and any other bodily contact.

Store in a dry, cool, well-ventilated area, away from incompatible materials.

HBr safety handbook-Click To PDF