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Bromine

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Identification
Molecular formula
Br2
CAS number
7726-95-6
IUPAC name
molecular bromine
State
State

Bromine is in a liquid state at room temperature.

Melting point (Celsius)
-7.20
Melting point (Kelvin)
265.95
Boiling point (Celsius)
58.80
Boiling point (Kelvin)
331.95
General information
Molecular weight
159.81g/mol
Molar mass
159.8080g/mol
Density
3.1028g/cm3
Appearence

Bromine is a reddish-brown liquid at room temperature with a pungent, strong odor similar to that of chlorine. It is the only nonmetallic element that is liquid at room temperature. Its vapor is amber in color.

Comment on solubility

Solubility of Molecular Bromine

Molecular bromine (Br2) is an intriguing compound with unique solubility characteristics. When exploring its solubility, it is essential to consider the following key points:

  • Solvent Interaction: Molecular bromine is relatively non-polar, which affects its solubility in various solvents.
  • Solubility in Water: Br2 is sparingly soluble in water, with a solubility of about 3.4 g/L at 25°C. This limited solubility is due to the polar nature of water and the non-polar characteristics of bromine.
  • Solubility in Organic Solvents: It shows much higher solubility in organic solvents such as:
    • Chloroform
    • Carbon tetrachloride
    • Ethyl acetate
    These solvents have similar non-polar characteristics, allowing bromine to dissolve more readily.
  • Temperature Dependence: As the temperature increases, the solubility of Br2 in organic solvents can also increase, making it more efficient for certain applications.

In conclusion, while molecular bromine is sparingly soluble in water, it demonstrates much greater solubility in non-polar organic solvents. Understanding these solubility properties is crucial for utilizing bromine effectively in various chemical processes.

Interesting facts

Exploring Molecular Bromine

Molecular bromine, often represented as Br2, is a fascinating compound with various applications and properties that make it unique in the world of chemistry. Here are some engaging facts about this intriguing element:

  • Distinctive State: Bromine is the only non-metallic element that is a liquid at room temperature, presenting a striking contrast to its halogen family members.
  • Color and Odor: It is known for its deep reddish-brown color and a pungent, irritating smell. Caution is advised when handling it due to its toxicity.
  • Historical Use: Bromine has a rich history of use in various industries, including photography, flame retardants, and in the production of certain dyes. Its discovery in 1826 by Antoine J. Balard marked a pivotal moment in chemical exploration.
  • Biological Importance: Although it is not commonly found in biological systems, bromine compounds, especially brominated compounds, have been studied for their potential in pharmaceuticals and biocides.
  • Reactivity: Bromine is highly reactive, especially with alkenes and alkynes, making it a valuable reagent in organic synthesis for creating a variety of compounds.

In summary, molecular bromine stands out not only because of its unique physical state but also due to its variety of applications and chemical reactivity. As research continues, it is anticipated that bromine may yield further discoveries that could enhance its significance in different fields.

Synonyms
BROMINE
Dibromine
7726-95-6
molecular bromine
Brom
Brome
Bromo
Broom
Caswell No. 112
SBV4XY874G
BROMIUM
HSDB 514
EINECS 231-778-1
UNII-SBV4XY874G
EPA Pesticide Chemical Code 008701
Br2
DTXSID1035238
CHEBI:29224
BROMINE (MART.)
BROMINE [MART.]
EC 231-778-1
Bromine 79
Total Bromine
Bromium 6C
Bromium 30C
DTXCID9015238
USEPA/OPP Pesticide Code: 008701
231-778-1
Br
bromine (acgih:osha)
chebi:33117
d-149
MFCD00010896
Bromo [Italian]
Bromo [Spanish]
Brome [French]
Brom [German]
Broom [Dutch]
dibromane
Bromoniumbromid
bromine-bromide
Bromine liquid
bromo-
Bromine water, CP
UN1744
Bromine, reagent grade
BROMINE [HSDB]
BROMIUM [HPUS]
BROMINE [MI]
BROMINE [WHO-DD]
Bromine, LR, >=99%
Bromine, p.a., 99.5%
Bromine Number - 2 g/100 g
Bromine Index - 10 mg/100 g
Bromine Number - 10 g/100 g
BCP26202
Bromine Index - 100 mg/100 g
Bromine, ACS reagent, >=99.5%
BR1014
Bromine Index - 1000 mg/100 g
AKOS015897100
UN 1744
Bromine, SAJ first grade, >=97.0%
Bromine, >=99.99% trace metals basis
Bromine, JIS special grade, >=99.0%
BP-24346
B2414
Bromine, puriss. p.a., >=99.0% (RT)
NS00075687
Q2685750