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Aluminium Stearate

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Identification
Molecular formula
Al(C18H35O2)3
CAS number
637-12-7
IUPAC name
aluminum;octadecanoate
State
State

At room temperature, Aluminium Stearate is a solid compound. It is often used in powdered form for various industrial applications, such as a thickener or gelling agent in cosmetics and lubricants.

Melting point (Celsius)
140.00
Melting point (Kelvin)
413.15
Boiling point (Celsius)
0.00
Boiling point (Kelvin)
0.00
General information
Molecular weight
876.44g/mol
Molar mass
876.4440g/mol
Density
1.0070g/cm3
Appearence

Aluminium Stearate typically appears as a white, waxy solid. It is often available in powder form and can exhibit a soft and greasy texture. The compound is noted for being insoluble in water, but it can be soluble in organic solvents such as ethyl ether and alcohol.

Comment on solubility

Solubility of Aluminum Octadecanoate

Aluminum octadecanoate, also known as aluminum stearate, exhibits interesting solubility characteristics that are important for various applications. Understanding its solubility can be crucial for formulators and scientists working with this compound.

Key Points on Solubility:

  • Solvent Compatibility: Aluminum octadecanoate is generally soluble in non-polar solvents due to its long hydrocarbon chains. This property makes it useful in formulations requiring hydrophobic agents.
  • Limited Water Solubility: It is practically insoluble in water, which is a significant characteristic considering its uses in emulsions and coatings where moisture resistance is desired.
  • Temperature Dependence: The solubility may increase slightly with higher temperatures, which is a common trend with many organic compounds.
  • Particle Size Influence: The dispersibility of aluminum octadecanoate can be affected by its particle size; smaller particles may exhibit improved solubility in certain organic matrices.

In summary, the solubility profile of aluminum octadecanoate is influenced by its molecular structure and can be strategically exploited in various industrial applications. Its hydrophobic nature and limited solubility in water are particularly noteworthy for formulators in creating products that require stability in an aqueous environment.

Interesting facts

Interesting Facts about Aluminum Octadecanoate

Aluminum octadecanoate, often referred to as aluminum stearate, is a fascinating compound with a variety of applications and properties that make it a valuable substance in both industrial and research settings. Here are some intriguing aspects of this compound:

  • Unique Classification: Aluminum octadecanoate belongs to the category of aluminum salts formed with long-chain fatty acids, specifically stearic acid. This type of compound showcases the interaction between metallic elements and organic molecules.
  • Versatile Applications: This compound is primarily used as a thickening agent and stabilizer in various formulations, including cosmetics, pharmaceuticals, and food products. Its ability to improve texture and stability makes it a popular choice in numerous industries.
  • Surfactant Properties: With surfactant characteristics, aluminum octadecanoate can modify surface tension properties, making it useful in the formulation of paints and coatings. It helps achieve a uniform application and improved adhesion.
  • Role in Research: In the realm of chemistry, aluminum octadecanoate is studied for its potential in drug delivery systems and nanotechnology. Researchers investigate its capability to form vesicles and encapsulate drugs for targeted therapies.
  • Interesting Chemistry: The structure of aluminum octadecanoate allows it to exhibit properties such as layering and self-assembly, which are key in the development of advanced materials and nanostructures.

As a compound that merges organic and inorganic chemistry, aluminum octadecanoate serves as an excellent example of how diverse chemical components can lead to innovative applications. Its multifaceted nature showcases the beauty of chemistry and its role in everyday life!

Synonyms
Aluminium stearate
Aluminum stearate
637-12-7
aluminium tristearate
Aluminum octadecanoate
ALUMINUM TRISTEARATE
Aluminum(III) stearate
Alugel 34TN
Metasap XX
Rofob 3
Tribasic aluminum stearate
Monoaluminum stearate
Octadecanoic acid, aluminum salt
Aluminum (III) stearate
Aluminum stearate (1:3)
Aluminum stearate, tribasic
Stearic acid, aluminum salt
HSDB 5733
UNII-U6XF9NP8HM
U6XF9NP8HM
Aluminium tristearate, pure
EINECS 211-279-5
Dihydroxy(octanoato-O)aluminum
SA 1500
AI3-01515
aluminium trioctadecanoate
ALUGEL 30DF
ALUGEL 34TH
Aluminum, dihydroxy(octadecanoato-O)-
THOMPSON'S WATER SEAL
DTXSID0027278
CHEBI:37867
ALUMINUM STEARATE (II)
ALUMINUM STEARATE [II]
ALUMINIUM STEARATE (EP MONOGRAPH)
ALUMINIUM STEARATE [EP MONOGRAPH]
KeratexKHG
DTXCID407278
211-279-5
Octadecanoic acid, aluminum salt (3:1)
aluminum;octadecanoate
aluminum trioctadecanoate
ALUMINUMTRISTEARATE
ALUMINUM STEARATE [MI]
4-6%Al
ALUMINUM STEARATE [VANDF]
ALUMINUM TRISTEARATE [HSDB]
AAA63712
ALUMINIUM STEARATE [WHO-DD]
AKOS015901563
DB11290
NS00079596
Q447821