Skip to main content

Dodecyltriethylammonium bromide

ADVERTISEMENT
Identification
Molecular formula
C18H40NBr
CAS number
68240-41-7
IUPAC name
dodecyl(triethyl)ammonium;bromide
State
State
Solid
Melting point (Celsius)
232.00
Melting point (Kelvin)
505.00
Boiling point (Celsius)
300.00
Boiling point (Kelvin)
573.00
General information
Molecular weight
364.45g/mol
Molar mass
364.4510g/mol
Density
1.0100g/cm3
Appearence

Dodecyltriethylammonium bromide typically appears as a white or off-white crystalline powder. It may also be found as a solid or in various granular forms depending on its preparation and purity.

Comment on solubility

Solubility of Dodecyl(triethyl)ammonium Bromide

Dodecyl(triethyl)ammonium bromide, commonly referred to as DTAB, is an interesting compound regarding its solubility characteristics. Its solubility profile can be explained by considering several factors:

  • Hydrophobicity of Dodecyl Chain: The dodecyl group is a long hydrocarbon chain that imparts hydrophobic characteristics to the compound, which generally reduces solubility in water.
  • Ionic Character: As a quaternary ammonium salt, the positive charge on the nitrogen atom and the ionic bromide contribute to solubility in polar solvents.
  • Solvent Interaction: DTAB is more soluble in organic solvents due to its hydrophobic tail, making it effective in applications requiring dissolution in non-polar environments.

In general, the solubility behavior can be summarized as follows:

  1. DTAB is sparingly soluble in water at room temperature.
  2. Solubility increases with temperature, indicating a positive temperature coefficient.
  3. It is significantly more soluble in alcohols and non-polar solvents.

This dual characteristic—limited solubility in water but favorable solubility in organic solvents—makes Dodecyl(triethyl)ammonium bromide a unique compound with diverse applications in both aqueous and non-aqueous systems.

Interesting facts

Interesting Facts about Dodecyl(triethyl)ammonium Bromide

Dodecyl(triethyl)ammonium bromide is a fascinating quaternary ammonium compound that showcases the interplay between organic chemistry and materials science. Here are some notable insights about this compound:

  • Surfactant Properties: This compound is commonly utilized as a surfactant, meaning it can reduce surface tension between two substances, such as oil and water. Its ability to form micelles makes it valuable in various applications.
  • Applications in Synthesis: It serves as a phase transfer catalyst in organic synthesis, facilitating the transfer of reactants into different phases, thereby promoting reactions that might otherwise be slow or ineffective.
  • Biocompatibility: Studies have shown that quaternary ammonium compounds like dodecyl(triethyl)ammonium bromide exhibit low toxicity, making them appealing for use in biocompatible applications, including drug delivery systems.
  • Emulsifying Agent: This compound acts as an emulsifier in cosmetic formulations, contributing to the stability and consistency of creams and lotions.
  • Environmental Considerations: Despite its usefulness, the environmental impact of surfactants is an important consideration. Researchers continue to study the biodegradability of such compounds to ensure they can be safely used without harming aquatic ecosystems.

In conclusion, dodecyl(triethyl)ammonium bromide exemplifies the versatility of quaternary ammonium compounds in both industrial and laboratory settings. Its unique properties open up numerous avenues for research and application, especially in fields such as materials science, pharmaceuticals, and environmental chemistry.

Synonyms
Dodecatriethylammonium bromide
18186-71-5
dodecyltriethylammonium bromide
Dteab
N,N,N-Triethyldodecan-1-aminium bromide
n-Dodecyltriethylammonium bromide
AMMONIUM, DODECATRIETHYL-, BROMIDE
1-Dodecanaminium, N,N,N-triethyl-, bromide
SCHEMBL190701
CHEMBL116718
dodecyl(triethyl)azanium;bromide
Dodecyl-Triethyl-Ammonium Bromide
DTXSID00939482
NSC5895
VVNBOKHXEBSBQJ-UHFFFAOYSA-M
NSC-5895