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Cetyltrimethylammonium chloride

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Identification
Molecular formula
C19H42ClN
CAS number
112-02-7
IUPAC name
hexadecyl(dimethyl)ammonium;chloride
State
State

At room temperature, cetyltrimethylammonium chloride is typically found as a solid in the form of a white to off-white powder or paste, depending on the hydration and crystallinity. When dissolved in water, it forms a clear to slightly hazy liquid.

Melting point (Celsius)
242.00
Melting point (Kelvin)
515.15
Boiling point (Celsius)
100.00
Boiling point (Kelvin)
373.15
General information
Molecular weight
320.00g/mol
Molar mass
320.0000g/mol
Density
0.9680g/cm3
Appearence

Cetyltrimethylammonium chloride appears as a white to pale yellow, waxy crystalline powder. It is also available in a liquid form when it is mixed with water. The substance can appear as clear to slightly hazy if in a solution. It is odorless or has a faint characteristic odor.

Comment on solubility

Solubility of Hexadecyl(dimethyl)ammonium Chloride

Hexadecyl(dimethyl)ammonium chloride, often referred to as a quaternary ammonium compound, exhibits unique solubility properties that are influenced by its long hydrophobic alkyl chain and positively charged ammonium group. Understanding its solubility profile provides insight into its applications and behavior in various environments.

Solubility Characteristics:

  • Water Solubility: Hexadecyl(dimethyl)ammonium chloride is sparingly soluble in water. Due to the lengthy hydrophobic hexadecyl tail, the compound tends to favor non-polar environments rather than the polar nature of water.
  • Solubility in Organic Solvents: It demonstrates good solubility in organic solvents such as alcohols and oils, which aligns with its hydrophobic characteristics, allowing it to interact more favorably in these environments.
  • Temperature Effects: The solubility may increase with temperature, as higher temperatures can disrupt the structured order of solvent molecules, facilitating better interaction with the compound.

In conclusion, the solubility of hexadecyl(dimethyl)ammonium chloride is primarily governed by its amphiphilic nature. As a result, this compound's limited water solubility alongside favorable solubility in non-polar solvents makes it valuable in various applications, such as surfactants and biocides, where its properties can be optimally utilized.

Interesting facts

Exploring Hexadecyl(dimethyl)ammonium Chloride

Hexadecyl(dimethyl)ammonium chloride, often abbreviated as HDMAC, is a fascinating compound that belongs to the class of quaternary ammonium salts. Known for its surfactant properties, HDMAC plays a crucial role in various applications, particularly in the fields of biotechnology and material science.

Unique Features of HDMAC

  • Surfactant Properties: HDMAC is recognized for its ability to reduce surface tension, making it a valuable component in formulations ranging from detergents to personal care products.
  • Antimicrobial Activity: This compound exhibits noteworthy antimicrobial properties, which are why it is often used in disinfectants and preservatives.
  • Phase Transfer Catalyst: In organic synthesis, HDMAC can serve as a phase transfer catalyst, facilitating the movement of reactants between different phases.

Applications in Various Fields

Due to its versatile properties, HDMAC has found applications in a variety of industries:

  • Medical Industry: It's used in formulations for antiseptic solutions and as a preservative in pharmaceuticals.
  • Cosmetics: Often included in shampoos and conditioners, HDMAC helps in emulsifying oils and water.
  • Research: In laboratory settings, this compound is utilized to enhance the solubility of certain compounds and to extract valuable materials.

Chemical Behavior and Safety

Like many quaternary ammonium compounds, HDMAC has specific safety considerations:

  • It is generally recognized as safe when used in appropriate concentrations but can be harmful if ingested or if there is prolonged skin contact.
  • Proper handling and safety protocols are essential in laboratories and industrial setups to mitigate risks.

In summary, hexadecyl(dimethyl)ammonium chloride is not only a remarkable chemical compound due to its multifunctional applications but also an essential compound in both academic and industrial chemistry contexts. Its diverse range of uses alongside its unique properties makes it a subject of continuous study and innovation.

Synonyms
Hexadecyldimethylammonium chloride
N,N-Dimethylhexadecylamine hydrochloride
EINECS 217-951-4
2016-45-7
HEXADECYLAMINE, N,N-DIMETHYL-, HYDROCHLORIDE
Dimethylhexadecylamine chlorhydrate
Dimethylhexadecylamine chlorhydrate [French]
N,N-Dimethyl-1-hexadecylamine hydrochloride
9W7A9X1632
cetyldimethylammonium chloride
dimethylhexadecylammonium chloride
CETYLDIMETHYLAMINE HYDROCHLORIDE
1-Hexadecanamine, N,N-dimethyl-, hydrochloride
1-HEXADECANAMINE, N,N-DIMETHYL-, HYDROCHLORIDE (1:1)
217-951-4
dimethyl hexadecyl ammonium chloride
UNII-9W7A9X1632
SCHEMBL129367
NS00081661