STEARYLAMINE

Stearylamine is a long-chain primary fatty amine derived from stearic acid, widely used as a surfactant, emulsifier, and conditioning agent in chemical, cosmetic, and industrial formulations.
Stearylamine is a waxy solid or pale yellow paste that provides cationic properties and surface activity to diverse systems.
Stearylamine is valued for its lubricating, anti-static, and emulsifying characteristics in coatings, personal care, and chemical synthesis.

CAS Number: 124-30-1
EC Number: 204-690-6
Molecular Formula: C18H39N
Molecular Weight: 269.51 g/mol

Synonyms: Octadecylamine, n-Octadecylamine, Primary Stearyl Amine, Stearyl Amine, Armeen 18D, Octadecylamine (C18), Long-Chain Alkylamine, Fatty Amine C18, Surface-Active Amine, Cationic Surfactant Amine, Stearylamine, Octadecylamine, n-Octadecylamine, 1-Aminooctadecane, Primary Stearylamine, Stearyl Amine, C18 Primary Amine, Long Chain Primary Amine, Fatty Amine C18, C18 Amine, Octadecyl Amine, Octadecylamine Compound, Octadecylamine Material, Octadecylamine Product, Octadecylamine Substance, Octadecylamine Chemical, Stearylamine Technical Grade, Stearylamine Industrial Grade, Stearylamine Pharmaceutical Grade, Stearylamine Cosmetic Grade, Stearylamine Laboratory Grade, Stearylamine Research Grade, Stearylamine Pure, Stearylamine Extra Pure, Stearylamine High Purity, Stearylamine Refined, Stearylamine Stabilized, Stearylamine Certified, Stearylamine Certified Standard, Stearylamine Analytical Standard

APPLICATIONS

Stearylamine is used as a cationic surfactant and emulsifier in various industrial formulations.
Stearylamine provides excellent surface activity and hydrophobic-lipophilic balance.
Stearylamine stabilizes emulsions and dispersions in both aqueous and non-aqueous systems.

Stearylamine is applied in cosmetics and personal care products.
Stearylamine acts as an antistatic and conditioning agent in hair care formulations.
Stearylamine enhances softness, detangling, and manageability in conditioners and creams.

Stearylamine is used in skin care emulsions and lotions.
Stearylamine provides smooth texture and enhances spreadability on the skin.
Stearylamine functions as a thickening and stabilizing agent in oil-in-water systems.

Stearylamine is incorporated in fabric softeners.
Stearylamine imparts a soft, lubricated feel to textiles.
Stearylamine reduces static electricity and improves fabric drape.

Stearylamine is applied in corrosion inhibitor formulations.
Stearylamine forms a protective film on metal surfaces to prevent oxidation.
Stearylamine is effective in protecting steel, copper, and aluminum in humid environments.

Stearylamine is used in flotation agents for mineral processing.
Stearylamine acts as a collector for silica, quartz, and other non-sulfide ores.
Stearylamine enhances separation efficiency and selectivity in mineral flotation.

Stearylamine is incorporated in lubricants and greases.
Stearylamine improves lubricity and anti-wear properties.
Stearylamine reduces metal-to-metal contact under high loads.

Stearylamine is used in pigment and dye dispersions.
Stearylamine improves wetting and dispersion of organic and inorganic pigments.
Stearylamine stabilizes pigment suspensions in coatings and inks.

Stearylamine is applied in the plastics industry.
Stearylamine acts as an antistatic agent and internal lubricant for polymers.
Stearylamine enhances flow and surface finish of molded thermoplastics.

Stearylamine is used in adhesive and sealant formulations.
Stearylamine improves adhesion between hydrophobic and hydrophilic surfaces.
Stearylamine enhances water resistance and film uniformity.

Stearylamine is incorporated in agrochemical formulations.
Stearylamine acts as an emulsifier and surfactant for herbicides and pesticides.
Stearylamine improves wetting and spreading on plant surfaces.

Stearylamine is used in textile auxiliaries.
Stearylamine improves dye uptake and fiber softness.
Stearylamine functions as a fabric lubricant during spinning and weaving.

Stearylamine is applied in asphalt and bitumen emulsions.
Stearylamine stabilizes cationic emulsions for road construction.
Stearylamine enhances adhesion between bitumen and mineral aggregates.

Stearylamine is used in antistatic coatings and conductive films.
Stearylamine reduces charge accumulation on polymer and paper surfaces.
Stearylamine improves dust resistance and handling performance.

Stearylamine is incorporated in oilfield chemicals.
Stearylamine acts as a corrosion inhibitor, demulsifier, and surfactant.
Stearylamine enhances separation of water and hydrocarbons in crude oil processing.

Stearylamine is used as a surfactant and emulsifier in cosmetics and personal care products.
Stearylamine acts as a conditioning agent in hair care formulations, imparting softness and manageability.
Stearylamine enhances emulsion stability and provides a smooth, silky feel to skin creams and lotions.

Stearylamine is used in textile and fabric softener formulations.
Stearylamine neutralizes static charge and provides lubricity to fibers.
Stearylamine improves fabric hand feel and reduces friction during processing.

Stearylamine is employed in lubricants and greases as a corrosion inhibitor.
Stearylamine forms a hydrophobic protective layer on metal surfaces.
Stearylamine prevents rust formation and reduces wear under boundary lubrication conditions.

Stearylamine is used as a flotation agent in mineral processing.
Stearylamine selectively adsorbs on mineral surfaces to separate valuable ores.
Stearylamine improves recovery efficiency in the beneficiation of silica and feldspar.

Stearylamine is applied in the production of surfactant blends for coatings and paints.
Stearylamine promotes dispersion of pigments and fillers in solvent-borne and waterborne systems.
Stearylamine improves flow, leveling, and substrate adhesion in coatings.

Stearylamine is used as an antistatic agent in plastics and polymer additives.
Stearylamine reduces surface resistivity, minimizing dust attraction and electrostatic buildup.
Stearylamine enhances polymer processability and prevents charge accumulation during extrusion.

Stearylamine is employed in asphalt and bitumen modification.
Stearylamine acts as an anti-stripping agent improving adhesion between bitumen and aggregates.
Stearylamine extends pavement life by preventing moisture-induced damage.

Stearylamine is used in corrosion prevention coatings and metal treatment processes.
Stearylamine provides long-term protection by forming a monolayer on reactive metal surfaces.
Stearylamine reduces oxidation and chemical degradation in harsh environments.

Stearylamine is incorporated into agricultural adjuvants and emulsifiable concentrates.
Stearylamine acts as an emulsifier and wetting agent for pesticide formulations.
Stearylamine enhances leaf coverage and penetration of active ingredients.

Stearylamine is applied in chemical synthesis as an intermediate.
Stearylamine is used to produce amides, amine oxides, and quaternary ammonium salts.
Stearylamine derivatives serve as cationic surfactants and corrosion inhibitors.

Stearylamine is used in the manufacture of paper and pulp processing aids.
Stearylamine acts as a deinking agent and helps disperse hydrophobic contaminants.
Stearylamine improves surface finish and paper brightness.

DESCRIPTION

Stearylamine is a long-chain primary amine derived from stearic acid or natural fats and oils.
Stearylamine is classified as an aliphatic amine with strong cationic character.
Stearylamine is used as a surfactant, emulsifier, and intermediate in chemical synthesis.

Stearylamine has the CAS number 124-30-1.
Stearylamine has the EC number 204-695-3.
Stearylamine has the molecular formula C18H39N.

Stearylamine has a molecular weight of 269.51 g/mol.
Stearylamine appears as a white to yellowish waxy solid or flakes.
Stearylamine emits a characteristic amine odor and becomes liquid above its melting point.

Stearylamine has a melting point range of 49–52°C and a boiling point around 350°C.
Stearylamine is insoluble in water but soluble in ethanol, ether, and organic solvents.
Stearylamine forms salts and quaternary ammonium derivatives with acids.

Stearylamine exhibits strong surface activity and reactivity toward polar substrates.
Stearylamine acts as a precursor for amine oxides, amides, and surfactant intermediates.
Stearylamine should be stored in tightly closed containers, protected from heat and strong oxidizing agents.

Stearylamine is a long-chain aliphatic amine with strong cationic properties.
Stearylamine appears as a waxy, solid material or as flakes with a characteristic amine odor.
Stearylamine is soluble in organic solvents such as alcohols, toluene, and chloroform but insoluble in water.

Stearylamine’s high molecular weight and low volatility make it stable under a wide range of conditions.
Stearylamine maintains performance in acidic to mildly alkaline environments.
Stearylamine may yellow slightly upon long-term storage due to oxidation but retains full functionality.

Stearylamine is compatible with many nonionic and amphoteric surfactants.
Stearylamine should not be combined directly with anionic surfactants to avoid neutralization.
Proper formulation techniques ensure optimal solubility and dispersion stability.

PROPERTIES

Appearance: White to pale yellow solid or flakes
Odor: Characteristic amine odor
Assay (purity): ≥98%
Melting Point: 50–55°C
Boiling Point: 347°C
Density: 0.81 g/cm³ (at 20°C)
Flash Point: 180°C
Solubility: Insoluble in water, soluble in alcohols and hydrocarbons
pH (1% solution in ethanol): Basic (approx. 10–11)
Refractive Index (melted): 1.46–1.48
Vapor Pressure: Very low
Stability: Stable under normal storage conditions
Storage Temperature: 5–30°C

FIRST AID

Inhalation:
Move the affected person to fresh air immediately.
Seek medical attention if coughing or difficulty breathing occurs.

Skin Contact:
Wash skin thoroughly with soap and water.
Remove contaminated clothing.
Seek medical attention if irritation persists.

Eye Contact:
Rinse cautiously with water for at least 15 minutes.
Seek medical attention if redness or pain continues.

Ingestion:
Rinse mouth with water.
Do not induce vomiting.
Seek medical attention immediately.

Note to Physicians:
Treat symptomatically.
Monitor for respiratory or dermal sensitization.

HANDLING AND STORAGE

Handling:
Use in a well-ventilated area.
Wear appropriate gloves, goggles, and protective clothing.
Avoid contact with eyes and skin.

Ventilation:
Ensure adequate ventilation to minimize vapor or dust exposure.

Avoidance:
Avoid mixing with acids or oxidizing agents.
Do not eat, drink, or smoke while handling this material.

Spill and Leak Procedures:
Contain spilled material and absorb with inert material such as sand.
Collect residues and dispose of in accordance with local regulations.
Clean contaminated surfaces with detergent and water.

Storage:
Store in tightly closed containers in a cool, dry, and well-ventilated area.
Keep away from heat and direct sunlight.
Avoid contact with moisture to prevent oxidation.

Handling Cautions:
Use only clean, dry utensils when transferring the product.
Ensure containers remain properly labeled and sealed.
Follow standard safety and hygiene procedures during use.