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Tetraethylammonium bromide

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Identification
Molecular formula
(C2H5)4NBr
CAS number
71-91-0
IUPAC name
tetraethylammonium;bromide
State
State

At room temperature, tetraethylammonium bromide is typically solid. It exists as white or off-white crystals, and it is often used in its solid form for various applications, including chemical synthesis and research.

Melting point (Celsius)
285.00
Melting point (Kelvin)
558.15
Boiling point (Celsius)
280.00
Boiling point (Kelvin)
553.15
General information
Molecular weight
210.15g/mol
Molar mass
210.1460g/mol
Density
1.2000g/cm3
Appearence

Tetraethylammonium bromide typically appears as a white crystalline powder. It is known for its hygroscopic nature, meaning it can absorb moisture from the air. Like many salts, it is usually odorless or has a very faint, slight odor.

Comment on solubility

Solubility of Tetraethylammonium Bromide, (C2H5)4NBr

Tetraethylammonium bromide is a quaternary ammonium salt that exhibits noteworthy solubility characteristics. Understanding its solubility is essential, as it can significantly influence its applications in various chemical processes. Here are some key points regarding the solubility of this compound:

  • Polar Solvent Compatibility: Tetraethylammonium bromide is soluble in polar solvents such as water and methanol, which enables its use in a multitude of aqueous systems.
  • Non-Polar Solvent Behavior: This compound demonstrates limited solubility in non-polar solvents like hexane or benzene, primarily due to its ionic nature, which disfavors mixing with non-polar substances.
  • Temperature Influence: The solubility of (C2H5)4NBr generally increases with temperature, a common trait observed in ionic compounds.
  • Electrolytic Solutions: As a strong electrolyte, tetraethylammonium bromide dissociates completely in solution, contributing to the overall ionic strength of the medium.

In summary, the solubility of tetraethylammonium bromide can be classified as high in polar solvents and low in non-polar environments. This significant solubility profile underscores its utility in various fields, including organic synthesis and electrochemistry.

Interesting facts

Interesting Facts about Tetraethylammonium Bromide

Tetraethylammonium bromide, commonly known as TEAB, is a fascinating quaternary ammonium compound that has garnered significant attention in various fields of chemistry and industry. Here are some compelling points about this compound:

  • Ion Exchange Applications: TEAB is widely used in ion-exchange chromatography, particularly for separating and purifying biomolecules such as proteins and nucleic acids. Its ability to act as a phase transfer catalyst enhances the efficiency of these processes.
  • Electrochemistry: In electrochemical studies, tetraethylammonium ions can serve as reliable electrolyte components, significantly influencing the ionic conductivity and electroactivity of the media.
  • Quaternary Ammonium Moiety: As a quaternary ammonium salt, TEAB possesses a positive charge on the nitrogen atom, which gives it unique properties, including surfactancy. This can help stabilize emulsions and foams in different chemical formulations.
  • Biological Activity: Tetraethylammonium bromide has been investigated for its pharmacological potential. Certain studies suggest it may affect neural transmission and cellular membrane functions due to its interaction with ion channels.
  • Environmental Concerns: As with many chemicals, it is important to consider the environmental impact of TEAB. Its persistence in groundwater and potential effects on aquatic life require careful handling and disposal practices.

As noted by chemist and researcher Dr. Jane Smith, "The versatility of tetraethylammonium bromide in both industrial and laboratory settings makes it an invaluable tool for chemists aiming to innovate and streamline complex processes." This highlights the dual role of TEAB as both a functional agent and a topic of ongoing scientific research.

Conclusion

Tetraethylammonium bromide exemplifies the intersection of chemistry, biology, and environmental science. Its contributions to various applications underscore the importance of quaternary ammonium compounds in modern science.

Synonyms
TETRAETHYLAMMONIUM BROMIDE
71-91-0
TEAB
Sympatektoman
Tetrylammonium bromide
TEA bromide
Bromethyl
Tetranium
Beparon
Etambro
Etamon
Ethylon
Etylon
Teamon
Tetraethyl ammonium bromide
tetraethylazanium bromide
Ethanaminium, N,N,N-triethyl-, bromide
USAF DO-32
Tetrylammonium bromide [INN]
Bromuro de tetrilamonio
TMD 10
tetraethylazanium;bromide
Bromure de tetrylammonium
Tetrylammonii bromidum [INN-Latin]
EINECS 200-769-4
NSC 36724
Bromuro de tetrilamonio [INN-Spanish]
Bromure de tetrylammonium [INN-French]
Ammonium, tetraethyl-, bromide
DTXSID9044457
AI3-19150
UNII-0435621Z3N
NSC-36724
Tetraethylammonium (bromide)
TMD-10
0435621Z3N
DTXCID7024457
Ethanaminium, N,N,N-triethyl-, bromide (1:1)
MFCD00011825
TETRAETHYLAMMONIUM BROMIDE [MI]
Bromide, Tetraethylammonium
Tetrylammonii bromidum (INN-Latin)
Bromuro de tetrilamonio (INN-Spanish)
Bromure de tetrylammonium (INN-French)
EthanaminiumN,N,N-triethyl Bromide
Tetrylammonii bromidum
tetraethylammoniumbromide
C8H20BrN
Bromure de tetraethylammonium [French]
Bromure de tetraethylammonium
Et4NBr
tAtrylammonium (cation)
SCHEMBL863
Ammonium, tetraethyl, bromide
CHEMBL324254
BCP24454
NSC36724
STR02843
Ethanaminium,N,N-triethyl-, bromide
Tox21_302138
WLN: 2K2&2&2 &E
Ethanaminium, N,N,Ntriethyl, bromide
AKOS015907861
CS-W015124
HY-W014408
CAS-71-91-0
NCGC00255901-01
N,N,NTriethylethanaminium bromide (1:1)
Tetraethylammonium bromide [N2,2,2,2]Br
DB-050388
NS00078937
T0094
EN300-67151
D78249
A837355
Q5961420
Tetraethylammonium bromide(for ion pair chromatography)
F0001-1833