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Sodium dodecylbenzenesulfonate

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Identification
Molecular formula
C18H29NaO3S
CAS number
25155-30-0
IUPAC name
sodium;2-dodecylbenzenesulfonate
State
State

At room temperature, sodium dodecylbenzenesulfonate is typically found as a solid. It is hygroscopic and can absorb moisture from the air, sometimes forming a semi-solid paste when exposed to moisture over time.

Melting point (Celsius)
288.00
Melting point (Kelvin)
561.15
Boiling point (Celsius)
300.00
Boiling point (Kelvin)
573.15
General information
Molecular weight
348.48g/mol
Molar mass
348.4830g/mol
Density
0.8600g/cm3
Appearence

Sodium dodecylbenzenesulfonate appears as a white to light yellow powder or granules. It is characterized by its ability to produce foam when agitated in water, a property that is highly valued in its use as a surfactant in detergents.

Comment on solubility

Solubility of Sodium 2-Dodecylbenzenesulfonate

Sodium 2-dodecylbenzenesulfonate, a prominent surfactant, exhibits interesting solubility characteristics that make it valuable in various applications. Here are key points regarding its solubility:

  • Water Solubility: Sodium 2-dodecylbenzenesulfonate is highly soluble in water. This high water solubility is primarily due to the ionic nature of the sulfonate group, which interacts favorably with water molecules.
  • Organic Solvents: In contrast, this compound is less soluble in polar organic solvents. However, it shows some degree of solubility in less polar organic solvents due to the long hydrophobic dodecyl chain.
  • Temperature Dependence: The solubility may increase with temperature, making it useful in applications where elevated temperatures are involved.
  • Concentration Effects: At higher concentrations, the formation of micelles occurs, impacting its effectiveness as a surfactant in different environments.

In summary, the solubility of sodium 2-dodecylbenzenesulfonate in water and its behavior in various solvents are crucial factors that contribute to its functionality in both industrial and household applications. Its solubility characteristics underscore the importance of considering both ionic interactions and hydrophobic properties.

Interesting facts

Interesting Facts About Sodium 2-Dodecylbenzenesulfonate

Sodium 2-dodecylbenzenesulfonate is a fascinating compound with a range of applications, particularly in the field of surfactants. Here are some intriguing aspects of this compound:

  • Surfactant Properties: As a surfactant, sodium 2-dodecylbenzenesulfonate has the ability to lower the surface tension of liquids, making it an essential ingredient in various cleaning products and detergents.
  • Environmental Impact: This compound is often favored for its biodegradability, making it a more environmentally friendly option compared to some traditional surfactants.
  • Industrial Applications: Sodium 2-dodecylbenzenesulfonate is widely used in the manufacture of cosmetic products, oil recovery processes, and even in pharmaceuticals for its emulsifying properties.
  • Structural Features: The unique structure of sodium 2-dodecylbenzenesulfonate allows it to effectively interact with both water and oils, enhancing its efficiency as a surfactant.
  • Research and Development: Ongoing studies are exploring the potential for sodium 2-dodecylbenzenesulfonate in various advanced applications, including as a catalyst in organic reactions.

In summary, sodium 2-dodecylbenzenesulfonate exemplifies the intersection of chemistry and environmental consciousness. Its role as a versatile surfactant not only contributes to everyday products but also promotes a more sustainable approach in chemical manufacturing.