Skip to main content

Cetyltrimethylammonium bromide

ADVERTISEMENT
Identification
Molecular formula
C19H42BrN
CAS number
57-09-0
IUPAC name
ethyl-hexadecyl-dimethyl-ammonium;bromide
State
State

At room temperature, cetyltrimethylammonium bromide is typically in a solid state. It is commonly used in laboratory settings as a phase transfer catalyst and surfactant.

Melting point (Celsius)
237.00
Melting point (Kelvin)
510.15
Boiling point (Celsius)
154.00
Boiling point (Kelvin)
427.15
General information
Molecular weight
364.45g/mol
Molar mass
364.4510g/mol
Density
1.0000g/cm3
Appearence

Cetyltrimethylammonium bromide is typically found as a white crystalline powder. It can also appear as flakes or granules, and it is often hygroscopic, meaning it can absorb moisture from the air.

Comment on solubility

Solubility of Ethyl-hexadecyl-dimethyl-ammonium Bromide

Ethyl-hexadecyl-dimethyl-ammonium bromide, commonly referred to as EHDA, displays interesting solubility characteristics that are worth exploring. This compound, being a quaternary ammonium salt, has both hydrophilic and hydrophobic components due to its long hydrophobic hexadecyl chain and the positively charged ammonium group. The solubility profile can be summarized as follows:

  • Solvent Compatibility: EHDA tends to be more soluble in organic solvents compared to water. Its long alkyl chain enhances its affinity for nonpolar solvents.
  • Aqueous Solubility: While EHDA can dissolve in water to some extent, its solubility is typically limited due to the large hydrophobic portion, which may impede full dissolution in a polar medium.
  • Temperature Influence: Increased temperatures generally enhance solubility in both aqueous and organic mediums, though the extent may vary.
  • Concentration Matters: The solubility is influenced by the concentration of the solution; higher concentrations can lead to phase separation, particularly in water.

It is often observed that surfactants like EHDA exhibit micellization, where above a certain concentration, they form aggregates rather than dissolving fully. Understanding these properties can help in tailored applications such as drug delivery and emulsification processes.

In summary, the solubility of ethyl-hexadecyl-dimethyl-ammonium bromide is a complex interplay of its molecular structure and environmental factors, making it an intriguing subject of study in the field of chemical compounds.

Interesting facts

Interesting Facts about Ethyl-Hexadecyl-Dimethyl-Ammonium Bromide

Ethyl-Hexadecyl-Dimethyl-Ammonium Bromide, often abbreviated as EDAB, is a fascinating compound belonging to the class of quaternary ammonium salts. Below are some intriguing aspects of this compound:

  • Surface-Active Properties: EDAB is known for its surfactant properties, making it effective in reducing surface tension in various applications, which is valuable in fields such as detergents and emulsifiers.
  • Antimicrobial Activity: This compound exhibits notable antimicrobial properties, which has led to its use in personal care products and disinfectants. As noted in scientific studies, “The quaternary ammonium structure is pivotal for its biocidal activity.”
  • Phase Transfer Catalyst: EDAB can function as a phase transfer catalyst, facilitating chemical reactions that involve two immiscible phases, thereby enhancing reaction efficiency in organic synthesis.
  • Biocompatibility: Research has shown that lower concentrations of EDAB can be biocompatible, making it a candidate for applications in pharmaceuticals and biotechnology.
  • Environmental Considerations: As with many surfactants, the environmental impact of EDAB is an area of active research. Understanding its degradation and behavior in ecological systems is crucial for sustainable use.

Overall, Ethyl-Hexadecyl-Dimethyl-Ammonium Bromide serves as a prime example of the versatility and utility of quaternary ammonium compounds in various scientific and industrial applications.

Synonyms
124-03-8
Cetyldimethylethylammonium bromide
Bretol
Ammonyx DME
Cetethyldimonium bromide
Ethyl cetab
Quaternium-17
Mecetronium bromide
Dimethylethylhexadecylammonium bromide
Cetylethyldimethylammonium bromide
Cetyl dimethyl ethyl ammonium bromide
Hexadecyldimethylethylammonium bromide
7ZNQ7FIO9K
Ethyl hexadecyl dimethyl ammonium bromide
Sumquat 6020
NSC-8494
RefChem:124722
204-672-8
ETHYLHEXADECYLDIMETHYLAMMONIUM BROMIDE
Cetylcide
Quaternium 17
MFCD00011774
1-Hexadecanaminium, N-ethyl-N,N-dimethyl-, bromide (1:1)
1-Hexadecanaminium, N-ethyl-N,N-dimethyl-, bromide
Hexadecylethyldimethylammonium bromide
ethyl-hexadecyl-dimethylazanium;bromide
DTXSID2041759
N-Ethyl-N,N-dimethyl-1-hexadecanaminium bromide
Ethylhexadecyldimethylammonium (bromide)
N-Ethyl-N,N-dimethylhexadecan-1-aminium bromide
Ammonium, ethylhexadecyldimethyl-, bromide
DTXCID0021759
Caswell No. 165E
MLS001335953
CAS-124-03-8
NCGC00166120-01
NSC 8494
SMR000875346
EINECS 204-672-8
UNII-7ZNQ7FIO9K
EPA Pesticide Chemical Code 069156
AI3-12210
Alkenyl dimethyl ethyl ammonium bromide
SCHEMBL60918
MLS001335954
orb1297899
CHEMBL1375045
N-Ethyl-N,N-dimethyl-1-hexadecanaminium bromide (1:1)
NSC8494
CETYL ETHYLDIMONIUM BROMIDE
HMS2234L08
HMS3372F06
ethylhexadecyldimethylamine, bromide
Tox21_112326
Tox21_302614
cetyl-dimethyl ethyl ammonium bromide
AKOS015914913
Tox21_112326_1
HY-W099576
ethyl-hexadecyl-dimethyl-ammonium;bromide
NCGC00166120-02
NCGC00256767-01
BS-14700
DA-62142
Ethyl(1-hexadecyl)dimethylammonium bromide
CS-0152218
D0721
NS00079354
ST51037168
CETYLDIMETHYLETHYLAMMONIUM BROMIDE [MI]
Ethylhexadecyldimethylammonium bromide (EHDAB)
Ethylhexadecyldimethylammonium bromide, 98.5%
Ethylhexadecyldimethylammonium bromide, BioXtra
D70210
CETYLDIMETHYLETHYLAMMONIUM BROMIDE [WHO-DD]
WLN: 16K2 & 1 & 1 & Q & E
Q27269081
Ethylhexadecyldimethylammonium bromide, >=98% (non-aqueous titration)
Ethylhexadecyldimethylammonium bromide, Vetec(TM) reagent grade, >=98%