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Boron trichloride

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Identification
Molecular formula
BCl3
CAS number
10294-34-5
IUPAC name
trichloroborane
State
State

Boron trichloride is typically found as a gas at room temperature. It can be stored in pressurized containers where it is in a liquid state. Upon release, it rapidly vaporizes, releasing fumes.

Melting point (Celsius)
-107.30
Melting point (Kelvin)
165.85
Boiling point (Celsius)
12.50
Boiling point (Kelvin)
285.65
General information
Molecular weight
117.17g/mol
Molar mass
117.1660g/mol
Density
1.3490g/cm3
Appearence

Boron trichloride is a colorless gas that fumes strongly in the air due to its reaction with moisture. It has a pungent odor and is often encountered as a fuming liquid when evolved from cylinders.

Comment on solubility

Solubility of Trichloroborane

Trichloroborane, with the chemical formula BCl3, exhibits interesting solubility characteristics worth noting.

Solubility in Common Solvents

This compound is:

  • Highly soluble in hydrocarbon solvents such as benzene and hexane.
  • Moderately soluble in polar solvents like alcohols and ethers.
  • Insoluble in water, which is important to consider when handling the compound.

Impact of Temperature

Temperature plays a significant role in the solubility of trichloroborane:

  • Its solubility tends to increase with a rise in temperature, particularly in non-polar solvents.
  • Conversely, lower temperatures may yield decreased solubility in certain solvents.

It is essential to remember that the solubility of BCl3 highlights its reactivity with water, leading to hydrolysis and the formation of boric acid and hydrochloric acid:

  • BCl3 + 3H2O → B(OH)3 + 3HCl

In summary, the solubility of trichloroborane is characterized by a high affinity for non-polar solvents, limited solubility in polar solvents, and a notable insolubility in water, which should be kept in mind for safe laboratory practices.

Interesting facts

Interesting Facts about Trichloroborane

Trichloroborane, often represented as BCl3, is a fascinating chemical compound that plays a crucial role in a variety of chemical processes. Here are some intriguing aspects that highlight the significance of this compound:

  • Structure and Bonding: Trichloroborane features a trigonal planar geometry, which is characteristic of compounds with sp2 hybridization. The boron atom is at the center, surrounded by three chlorine atoms, allowing for unique bonding interactions.

  • Reactivity: This compound is highly reactive and serves as a potent Lewis acid. It readily forms complexes with various nucleophiles, which makes it an essential reagent in organic synthesis and catalysis.

  • Applications: Trichloroborane is extensively utilized in the preparation of boron-containing compounds. It is particularly valuable in the production of boron trioxide and as a precursor in the synthesis of boron compounds for applications in semiconductors and ceramics.

  • Environmental Considerations: Due to its reactivity, trichloroborane should be handled with care. It can release toxic fumes upon decomposition, making safety precautions critical during its use and storage.

  • Historical Significance: The study of trichloroborane dates back to the early explorations of boron chemistry in the mid-20th century. Its discovery has paved the way for advancements in inorganic and organometallic chemistry.

  • In Research: Ongoing research into trichloroborane focuses on its potential applications in new materials and nanotechnology, revealing its importance in the evolving field of chemistry.

The unique properties of trichloroborane exemplify the interplay between structure and reactivity in chemical compounds. Its contributions to both academia and industry make it a remarkable subject of study for any chemist.

Synonyms
BORON TRICHLORIDE
Trichloroborane
10294-34-5
Borane, trichloro-
Trichloroboron
Boron chloride (BCl3)
HSDB 326
Chlorure de bore
EINECS 233-658-4
UNII-K748471RAG
K748471RAG
DTXSID2041676
EC 233-658-4
BORON CHLORIDE(BCL3)
DTXCID0021676
233-658-4
Boron chloride
Borontrichloride
BCl3
UN 1741
MFCD00011313
75507-65-2
Chlorure de bore (French)
Boron Trichloride - 2-Chloroethanol Reagent (5-10%) [for Esterification] (1mL*10)
trichloroboran
Trichloro-borane
boron tri-chloride
Trona boron trichloride
Boron trichloride [UN1741] [Poison gas]
Boron trichloride 99.9%
Boron trichloride, 99.9%
SCHEMBL36723
BORON TRICHLORIDE [MI]
BORON TRICHLORIDE [HSDB]
FAQYAMRNWDIXMY-UHFFFAOYSA-
InChI=1/BCl3/c2-1(3)4
Boron Trichloride - Methanol Reagent
SBB080574
AKOS005111101
37226-51-0
B3556
B3967
B3968
B4415
B4416
Boron Trichloride - 2-Chloroethanol Reagent
X0032
X0033
Q415872