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Benzyldimethyloctadecylammonium bromide

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Identification
Molecular formula
C27H50BrN
CAS number
7281-04-1
IUPAC name
ethyl-dimethyl-octadec-9-enyl-ammonium;bromide
State
State

At room temperature, benzyldimethyloctadecylammonium bromide is generally found in a solid state. It is a quaternary ammonium compound often used in various applications including as a surfactant.

Melting point (Celsius)
250.00
Melting point (Kelvin)
523.15
Boiling point (Celsius)
200.00
Boiling point (Kelvin)
473.15
General information
Molecular weight
448.50g/mol
Molar mass
448.5030g/mol
Density
1.1637g/cm3
Appearence

Benzyldimethyloctadecylammonium bromide typically appears as a white or off-white powder. It is hygroscopic and may appear slightly yellowish if impure. This compound is known for forming crystals under certain conditions and is soluble in water, forming clear solutions.

Comment on solubility

Solubility of Ethyl-dimethyl-octadec-9-enyl-ammonium bromide

Ethyl-dimethyl-octadec-9-enyl-ammonium bromide, a quaternary ammonium compound, presents unique solubility characteristics due to its long hydrophobic alkyl chain coupled with a hydrophilic ammonium group. Understanding its solubility behavior is crucial for various applications such as in surfactants and emulsifiers.

General Solubility Properties

Solubility can be influenced by several factors:

  • Polar and Non-Polar Interactions: The bromide ion plays a significant role in solubility, as halides generally increase the solubility of ammonium compounds in water due to their ionic nature.
  • Hydrophobic Chain: The octadec-9-enyl group contributes to a hydrophobic character, which may limit water solubility due to its length and saturation.
  • Temperature: Higher temperatures typically enhance the solubility of organic compounds in solvents.

Solubility in Various Solvents

The compound is expected to exhibit:

  • Good Solubility in Polar Solvents: Due to the presence of the ammonium ion, it likely dissolves well in polar solvents like water, especially when organized in micelles or as part of colloidal structures.
  • Poor Solubility in Non-Polar Solvents: The long hydrophobic chain may hinder solubility in non-polar solvents such as hexane or chloroform.

In conclusion, while ethyl-dimethyl-octadec-9-enyl-ammonium bromide exhibits promising solubility in polar environments, its efficacy and interaction within mixed solvent systems will depend largely on the balance between its ionic character and hydrophobic properties. As the adage goes, “Like dissolves like,” making solubility an intriguing interplay of molecular structure and solvent characteristics.

Interesting facts

Interesting Facts about Ethyl-Dimethyl-Octadec-9-enyl-Ammonium Bromide

Ethyl-dimethyl-octadec-9-enyl-ammonium bromide, often referred to as a quaternary ammonium compound, carries many fascinating attributes that pique the interest of chemists and students alike.

Unique Properties and Uses

  • Structure: This compound features a long hydrophobic tail, with a notable unsaturation at the 9th position, which is crucial for its surfactant properties.
  • Biocidal Activity: It demonstrates effective antimicrobial properties, making it valuable in various disinfectants, personal care products, and agricultural applications.
  • Emulsifying Agent: Its ability to stabilize emulsions allows it to be a key ingredient in cosmetics and skincare formulations.
  • Quaternary Ammonium Compound: Being a quaternary ammonium salt, it carries a positive charge, influencing its interactions with biological membranes and enhancing its biocompatibility.

Environmental and Safety Aspects

While this compound holds many beneficial uses, it is essential to consider the environmental aspects and safety measures associated with its use:

  • Biodegradability: Research into the environmental impact of quaternary ammonium compounds is ongoing, urging scientists to evaluate their biodegradability and effects on aquatic ecosystems.
  • Safety Precautions: As with many chemical compounds, proper handling is crucial. Appropriate personal protective equipment (PPE) should be used when working with this compound.

Fun Fact

The incorporation of ethyl and dimethyl groups contributes to this compound's surfactant properties, enhancing its ability to reduce surface tension in liquid systems. In other words, it acts like a bridge between water and oils, making it an invaluable asset in numerous formulations!

As a quaternary ammonium salt, ethyl-dimethyl-octadec-9-enyl-ammonium bromide serves as an excellent example of how chemistry plays a vital role in product development across various industries. Its diverse applications and unique properties make it a compound worthy of study!

Synonyms
SCHEMBL1844416
BFDFJIJWIIIZJB-UHFFFAOYSA-M
NS00046010