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Octadecanoic acid, aluminum salts general formula can be represented as Al(C₁₈H₃₅O₂)₃ (often as basic or mixed forms).
Octadecanoic acid, aluminum salt belongs to the class of aluminum carboxylates.
Octadecanoic acid, aluminum salt consists of aluminum ions coordinated with stearate (fatty acid) anions.
CAS Number: 637-12-7
Molecular Formula: C54H105AlO6
Molecular Weight: 877.39
EINECS Number: 211-279-5
Synonyms: Octadecanoic acid, aluminum salt, Aluminum stearate, Aluminum octadecanoate, aluminium tristearate, ALUMINUM TRISTEARATE, Aluminum(III) stearate, Tribasic aluminum stearate, Monoaluminum stearate, Aluminum (III) stearate, Octadecanoic acid, aluminum salt, Aluminum stearate (1:3), Aluminum stearate, tribasic, Stearic acid, aluminum salt, aluminium trioctadecanoate, Octadecanoic acid, aluminum salt (3:1), Aluminium stearate, aluminium stearate, aluminum;octadecanoate, Aluminium tristearate, Dihydroxy(octadecanoato-O)aluminum, Aluminum, dihydroxy(octadecanoato-O)-, Stearic acid aluminium salt;Trioctadecanoic acid aluminum salt;Trisstearic acid aluminum salt;Tristearic acid aluminum;Tristearic acid aluminum salt;Aluminum octadecanoa;octadecanoicacid,aluminumsalt;rofob3
Octadecanoic acid, aluminum salt is an aluminium salt.
Octadecanoic acid, aluminum salt contains an octadecanoate.
Octadecanoic acid, aluminum salt is an inorganic–organic compound (metal soap) formed from stearic acid and aluminum, widely used as a thickener, stabilizer, and water-repellent agent in coatings, greases, and cosmetics.
The long hydrocarbon chains provide strong hydrophobic character.
The aluminum center enables network formation and thickening.
Physically, Octadecanoic acid, aluminum salt appears as a white, fine powder or gel-like substance.
Octadecanoic acid, aluminum salt is insoluble in water but dispersible in oils and organic solvents.
It has a waxy, soap-like texture.
The compound exhibits thickening and gelling properties in non-aqueous systems.
Octadecanoic acid, aluminum salt can form structured networks in oils.
This increases viscosity and stability.
Aluminum stearate acts as a water-repellent (hydrophobic) agent.
Octadecanoic acid, aluminum salt helps protect materials from moisture.
This is useful in coatings and waterproofing applications.
Octadecanoic acid, aluminum salt also functions as a stabilizer and dispersing agent.
Octadecanoic acid, aluminum salt helps maintain uniform distribution of pigments and particles.
This improves formulation consistency.
The compound is generally chemically stable under normal conditions, but may decompose at high temperatures.
Octadecanoic acid, aluminum salt should be stored in a dry environment.
Proper storage ensures performance.
Octadecanoic acid, aluminum salt is best described as a hydrophobic metallic soap used for thickening, stabilization, and water resistance, especially in coatings, greases, and cosmetic formulations.
Octadecanoic acid, aluminum salt exhibits strong gelling ability in hydrocarbon oils, forming semi-solid structures.
These gels improve consistency and stability.
This is important in grease formulations.
Octadecanoic acid, aluminum salt provides excellent moisture barrier properties.
It forms a hydrophobic layer that resists water penetration.
This enhances durability of coatings and materials.
Octadecanoic acid, aluminum salt contributes to anti-settling and suspension stability in formulations.
It keeps pigments and particles evenly distributed.
This prevents phase separation over time.
Octadecanoic acid, aluminum salt can act as a lubricating agent in powders and processing systems.
Octadecanoic acid, aluminum salt reduces friction between particles.
This improves flow and handling.
The material shows thermal stability under typical processing conditions, but may decompose at very high temperatures.
Octadecanoic acid, aluminum salt maintains performance in many industrial applications.
Proper temperature control is still required.
Melting point: 103°C
Boiling point: 250℃ [at 101 325 Pa]
Density: 1.01
vapor pressure: 0 Pa at 25℃
solubility: Practically insoluble in water and in anhydrous ethanol
form: Powder
Specific Gravity: 1.01
color: white
Water Solubility: Soluble in alkali, glycol, chlorinated hydrocarbons, petroleum, benzene, turpentine oil, mineral oil, vegetable oil, mixture of benzene, toluene and the three xylene isomers. Insoluble in water, ethanol and ether
Merck: 14,364
Exposure limits: ACGIH: TWA 1 mg/m³
Stability: Stable. Incompatible with strong oxidizing agents
Cosmetics Ingredients Functions: VISCOSITY CONTROLLING; OPACIFYING; ANTICAKING; SKIN CONDITIONING - EMOLLIENT; EMULSION STABILISING
Cosmetic Ingredient Review (CIR): Aluminum Stearate (637-12-7)
LogP: 22.69
Octadecanoic acid, aluminum salt belongs to the group of metallic soaps, which are salts of fatty acids with multivalent metal ions.
These compounds are widely used in non-aqueous systems.
They combine hydrophobic chains with metal coordination.
The long C18 hydrocarbon chains provide strong hydrophobicity.
This makes the material highly water-repellent.
Octadecanoic acid, aluminum salt is useful in moisture-resistant formulations.
Octadecanoic acid, aluminum salt can form three-dimensional network structures in oils and solvents.
This network formation leads to gelation and thickening.
Octadecanoic acid, aluminum salt is important in grease and coating systems.
Octadecanoic acid, aluminum salt exhibits excellent dispersing capability for pigments and fillers.
Octadecanoic acid, aluminum salt helps prevent settling and aggregation.
This improves formulation stability.
Octadecanoic acid, aluminum salt can influence rheology and flow behavior of systems.
It provides thixotropic properties, meaning viscosity decreases under shear.
This is useful in coatings and paints.
Octadecanoic acid, aluminum salt is often used as a flow and anti-caking agent in powders.
Octadecanoic acid, aluminum salt improves handling and prevents clumping.
This enhances processing.
The material shows good compatibility with oils, waxes, and organic solvents.
Octadecanoic acid, aluminum salt is not compatible with water-based systems.
This limits its use to nonpolar environments.
Because of its metal content, it may interact with polar additives or acids, affecting stability.
Formulation design must consider compatibility.
Octadecanoic acid, aluminum salt is a hydrophobic, oil-compatible metallic soap that provides thickening, dispersion, and rheology control, especially in coatings, greases, and powder systems.
Octadecanoic acid, aluminum salt can influence surface properties, such as smoothness and gloss.
It helps create uniform, high-quality finishes.
This is important in coatings and cosmetics.
Octadecanoic acid, aluminum salt is often used in combination with other metallic soaps or additives to optimize performance.
This allows tailoring of viscosity, stability, and hydrophobicity.
Formulators adjust ratios for desired properties.
Because of its structure, aluminum stearate can provide controlled release or slow diffusion of substances in some systems.
Octadecanoic acid, aluminum salt enhances functionality.
Octadecanoic acid, aluminum salt is a multifunctional, hydrophobic additive that provides gelling, moisture resistance, dispersion, lubrication, and rheology control, especially in oil-based and industrial systems.
Uses Of Octadecanoic acid, aluminum salt:
Octadecanoic acid, aluminum salt is used for waterproofing fabrics and for thickening lubricating oils.
Octadecanoic acid, aluminum salt is involved in the preparation of polyamides and thermosetting plastics.
Octadecanoic acid, aluminum salt is used as a waterproofing additive in cements and in light-sensitive photographic compositions.
Octadecanoic acid, aluminum salt acts as a gelling agent for alkyd paints, as a defoamer for oil drilling fluids and as a retarder for polysulfide dental impression materials.
Further, it is used in greases, lubricants, cutting compounds, cosmetics and pharmaceuticals.
Octadecanoic acid, aluminum salt serves as a flatting agent, as a defoaming agent in beet sugar and yeast processing.
In addition to this, it is used as a water-repellent soap for natural stone surfaces.
Octadecanoic acid, aluminum salt is widely used as a thickener in greases and lubricants.
It forms gel-like structures in oils.
This improves consistency and performance.
In paints and coatings, it acts as a rheology modifier and anti-settling agent.
Octadecanoic acid, aluminum salt helps keep pigments evenly dispersed.
This improves stability and application properties.
Octadecanoic acid, aluminum salt is used in cosmetics, such as creams, powders, and foundations.
Octadecanoic acid, aluminum salt provides thickening, texture improvement, and water-repellent properties.
This enhances product feel and performance.
In ink formulations, it functions as a dispersant and viscosity modifier.
Octadecanoic acid, aluminum salt improves flow and pigment distribution.
This enhances print quality.
Octadecanoic acid, aluminum salt is applied in pharmaceutical ointments and topical formulations as a gelling agent.
It helps create stable, semi-solid systems.
This supports controlled application.
In construction materials, such as waterproofing compounds and sealants, it provides hydrophobic properties.
Octadecanoic acid, aluminum salt reduces water penetration.
Octadecanoic acid, aluminum salt is used as a flow and anti-caking agent in powders.
Octadecanoic acid, aluminum salt improves handling and prevents clumping.
This is useful in industrial and cosmetic powders.
In plastics and rubber processing, it acts as a lubricant and processing aid.
Octadecanoic acid, aluminum salt reduces friction during manufacturing.
This enhances processing efficiency.
Octadecanoic acid, aluminum salt is also used in adhesives and sealants to control viscosity and improve stability.
It helps maintain uniform consistency.
Octadecanoic acid, aluminum salt is used wherever thickening, moisture resistance, dispersion, lubrication, and rheology control are required, especially in coatings, greases, cosmetics, and industrial formulations.
Octadecanoic acid, aluminum salt is used in waterproofing treatments for textiles and construction materials.
Octadecanoic acid, aluminum salt creates a hydrophobic barrier on surfaces.
This improves resistance to moisture.
In ceramic and powder processing, it acts as a lubricant and binder.
Octadecanoic acid, aluminum salt improves particle flow and shaping.
This enhances manufacturing efficiency.
Octadecanoic acid, aluminum salt is applied in mold release systems.
Octadecanoic acid, aluminum salt prevents materials from sticking to molds.
This facilitates easy removal of finished products.
In polishing compounds, it functions as a binder and consistency modifier.
Octadecanoic acid, aluminum salt helps maintain uniform distribution of abrasives.
This improves polishing performance.
Octadecanoic acid, aluminum salt is used in fuel and wax formulations to control viscosity and structure.
It helps stabilize blends.
This supports product consistency.
In metalworking and machining, aluminum stearate provides lubrication and surface protection.
Octadecanoic acid, aluminum salt reduces friction and wear.
This improves processing efficiency.
Octadecanoic acid, aluminum salt is applied in paper coatings and specialty papers.
Octadecanoic acid, aluminum salt improves surface smoothness and water resistance.
This enhances product quality.
In fireworks and pyrotechnics, it can be used as a fuel or binder component.
Octadecanoic acid, aluminum salt contributes to combustion behavior.
This supports specialized applications.
Octadecanoic acid, aluminum salt is also used in rubber compounding to improve processing and dispersion of fillers.
It enhances mixing and material uniformity.
Octadecanoic acid, aluminum salt is used wherever hydrophobicity, thickening, lubrication, dispersion, and processing control are required across coatings, construction, cosmetics, and industrial manufacturing.
Safety Profile Of Octadecanoic acid, aluminum salt:
Octadecanoic acid, aluminum salt is generally considered to have low to moderate hazard potential, with risks mainly related to dust exposure and mild irritation.
Octadecanoic acid, aluminum salt is relatively inert compared to many reactive chemicals.
Standard safety precautions are recommended.
Octadecanoic acid, aluminum salt skin contact is typically low risk, but prolonged exposure to powder may cause mild irritation or dryness.
Sensitive individuals may experience slight redness.
Protective gloves are recommended during bulk handling.
Eye contact with dust may cause mechanical irritation.
Symptoms can include redness, discomfort, and tearing.
Octadecanoic acid, aluminum salt eyes should be rinsed thoroughly with water if exposure occurs.
Inhalation of dust may cause respiratory irritation.
Fine particles can irritate the nose, throat, and lungs.
Adequate ventilation and dust control are important.
Ingestion is considered low toxicity, but large amounts may cause mild gastrointestinal discomfort.
Octadecanoic acid, aluminum salt is not intended for oral consumption.
Medical advice should be sought if necessary.
Octadecanoic acid, aluminum salt is not highly flammable, but it can burn under strong heat.
Fine powder may present a dust explosion risk in industrial environments.
Proper dust management is required.
