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Stearyltrimethylammonium chloride

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Identification
Molecular formula
C21H46ClN
CAS number
112-03-8
IUPAC name
trimethyl(octadecyl)ammonium;chloride
State
State

At room temperature, stearyltrimethylammonium chloride is typically in a solid state, often as a crystalline or waxy solid.

Melting point (Celsius)
124.00
Melting point (Kelvin)
397.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
372.08g/mol
Molar mass
372.0790g/mol
Density
0.9680g/cm3
Appearence

Stearyltrimethylammonium chloride appears as a white to off-white crystalline solid or powder. It is often sold in a waxy solid form when combined with other substances in formulations.

Comment on solubility

Solubility of Trimethyl(octadecyl)ammonium Chloride

Trimethyl(octadecyl)ammonium chloride, also known as TMAC, is a quaternary ammonium compound that exhibits distinct solubility characteristics. Understanding its solubility is crucial for various applications in chemistry and industry.

This compound is generally characterized by:

  • High Solubility in Organic Solvents: TMAC is highly soluble in nonpolar organic solvents such as hexane and toluene, making it useful in organic synthesis.
  • Poor Solubility in Water: Due to its long hydrophobic octadecyl chain, TMAC shows low solubility in water. This is typical for many large alkyl chain compounds, which tend to prefer hydrophobic environments.
  • Micelle Formation: In aqueous solutions, TMAC can form micelles at higher concentrations, which enhances its utility as a surfactant.

In summary, while TMAC exhibits good solubility in organic media, its solubility in water is limited. The amphiphilic nature due to its quaternary ammonium structure allows it to interact in unique ways in different environments, making it an interesting compound for both chemical research and practical applications.

Interesting facts

Interesting Facts about Trimethyl(octadecyl)ammonium Chloride

Trimethyl(octadecyl)ammonium chloride, often abbreviated as TMOAC, is a fascinating cationic surfactant that has garnered attention in various fields due to its unique properties and applications. Here are some intriguing details about this compound:

  • Structure and Composition: The molecule features a central nitrogen atom bonded to three methyl groups and one long-chain octadecyl group, making it amphiphilic. This structure allows it to interact with both hydrophilic and hydrophobic substances.
  • Applications: TMOAC is widely used in:
    • Personal care products, serving as a conditioning agent and emulsifier.
    • Textile industry, where it acts as a softening agent and helps to enhance fabric properties.
    • Antimicrobial applications, as it exhibits effective biocidal properties.
  • Surfactant Properties: Such cationic surfactants are known for their ability to reduce surface tension, making them valuable in cleaning products and industrial applications.
  • Environmental Considerations: While TMOAC has beneficial applications, its environmental impact must be evaluated carefully, as surfactants can affect aquatic ecosystems.
  • Research and Development: Ongoing studies explore the potential of TMOAC in drug delivery systems and as a stabilizing agent in nanotechnology.

As noted by chemists, “Understanding the interaction of cationic surfactants with biological membranes opens new avenues in both therapeutic and industrial applications.” This highlights the importance of TMOAC not just in its current uses, but also in its promising future.

In summary, trimethyl(octadecyl)ammonium chloride is a versatile compound with a broad spectrum of applications and a rich area of study for chemists and material scientists alike.

Synonyms
112-03-8
Trimethylstearylammonium chloride
Trimethyloctadecylammonium chloride
N,N,N-trimethyloctadecan-1-aminium chloride
OCTADECYLTRIMETHYLAMMONIUM CHLORIDE
Stac
1-Octadecanaminium, N,N,N-trimethyl-, chloride
Steartrimonium chloride
Cation AB
Aliquat 7
Stearyltrimethylammonium chloride
Nissan cation AB
Quaternium-10
Arquad 18
Stearyl trimethyl ammonium chloride
Arquad 18-50
EINECS 203-929-1
trimethyl octadecyl ammonium chloride
MFCD00050188
Monostearyl trimethyl ammonium chloride
DTXSID1026902
N,N,N-Trimethyl-1-octadecanaminium chloride
CZ70647U92
Ammonium, trimethyloctadecyl-, chloride
DTXCID206902
CHEBI:81710
EC 203-929-1
Octadearyl dimethyl ammonium chloride
Octadecyl trimethyl ammonium chloride
1-Octadecanaminium, N,N,N-trimethyl-, chloride (1:1)
trimethyl(octadecyl)azanium chloride
TrimethylstearylammoniumChloride
UNII-CZ70647U92
Stearyl trimethyl ammoium chloride
OCTADECYLTRIMETHYL AMMONIUM CHLORIDE
SCHEMBL28902
CHEMBL118745
octadecyl-trimethylammonium chloride
trimethyloctadecyl-Ammonium chloride
Tox21_200438
Trimethyl-octadecyl-ammonium chloride
AC-659
STEARTRIMONIUM CHLORIDE [INCI]
AKOS015914912
CS-W016737
HY-W016021
NCGC00257992-01
80702-43-8
AS-13599
CAS-112-03-8
SY015062
NS00075624
C18371
D70494
N,N,N-trimethyl-1-Octadecanaminium chloride (1:1)
Q27155573
Trimethyloctadecylammonium chloride 100 microg/mL in Acetonitrile