High-Grade Octadecylamine A18 Stearylamine CAS 124-30-1

Tree Chem’s High-Grade Octadecylamine CAS 124-30-1 is specifically tailored for use in industries where product purity and low impurity levels are paramount. Unlike standard Octadecylamine, this variant is produced to meet the stringent demands of fine chemical production, high-end material applications, and sensitive surfactant formulations.

With exceptional hydrophobicity and surface activity, High-Grade Octadecylamine is widely used in textile antistatic agents, ore flotation chemicals, emulsifiers, water-treatment additives, and specialty chemicals. Its waxy or flake form ensures easy handling and uniform performance in industrial processes. For collaboration or bulk orders, please contact info@cntreechem.com.

Specification

Basic Information

Technical Specification

Applications

Surfactant and Home & Personal Care Industry

• High Purity Octadecylamine is a core feedstock for high-value cationic surfactants, where its purity at 98–99% or higher directly translates into more consistent quaternization reactions and cleaner downstream products. In fabric softeners, it is quaternized to form octadecyl trimethyl ammonium chloride and related salts that act as the primary softening and antistatic actives, depositing uniform cationic layers on fiber surfaces. When high purity material is used, the fabric softener achieves stronger softness at the same dosage, longer-lasting fragrance retention and more stable viscosity during storage, because side-products such as secondary or tertiary amines and amides are tightly controlled.
• In hair conditioners and hair masks, high purity octadecylamine derivatives are formulated at low active levels alongside high-melting fatty alcohols, anionic or amphoteric thickeners and polyols. The higher primary-amine content leads to better conversion to quats, which improves adsorption on hair keratin and provides superior wet and dry combing, gloss and smoothness compared with lower-grade raw materials. In liquid detergents, high purity octadecylamine-based cationics act as auxiliary surfactants that enhance detergency, lower surface tension into the 28–30 mN/m range and stabilize foam in the presence of hard-water ions. The reduced level of colored and odorous impurities supports bright, low-odor formulations aimed at premium laundry and home-care markets.

Lubricants, Greases and Metalworking Fluids

• In lubricants, high purity octadecylamine is valued as a thickener building block, extreme-pressure and anti-wear additive, and rust inhibitor. When reacted with fatty acids or dicarboxylic acids to form soap-type thickeners, its narrow impurity profile yields more regular molecular structures and tighter melting ranges, which in turn give lubricating greases higher dropping points and improved high-temperature stability. Greases prepared from high purity octadecylamine show lower changes in cone penetration after aging and longer service life at elevated temperatures compared with those based on lower-grade feedstocks.
• Polyurea greases benefit from high purity octadecylamine as a chain-building amine for urea thickeners. The more uniform primary-amine content leads to more regular urea networks, enhanced shear stability and substantially better anti-wear performance under high load. In water-based cutting fluids, high purity octadecylamine serves as a boundary-film former, oil-in-water emulsifier and corrosion inhibitor, forming stable emulsions with mineral or synthetic esters and maintaining rust protection with lower treat rates than standard grades. In rolling oils for non-ferrous metals such as aluminum, the use of high purity material allows rolling forces to be reduced while delivering cleaner strip surfaces, because adsorbed films are more uniform and oxidative side reactions are minimized during severe deformation.

Water Treatment and Environmental Protection

• High Purity Octadecylamine is widely used as a corrosion inhibitor, biocide component and flocculation aid in industrial water treatment, where its high primary-amine content and low impurity levels help form dense, persistent protective films on metal surfaces. In circulating-cooling-water systems, it can be applied alone or in synergy with molybdate, zinc and polyphosphate co-inhibitors, offering high corrosion-inhibition efficiencies at only a few ppm dosage. The high purity grade allows dosage to be cut significantly compared with technical material, because every molecule participates more effectively in adsorption and film formation on steel, thereby reducing product consumption and discharge loads.
• In biocidal formulations for cooling water, wastewater and seawater systems, quaternized derivatives based on high purity octadecylamine are blended with isothiazolinones or glutaraldehyde to give dual-mode disinfectants. The purer cationic headgroups extend half-life in warm circulating systems and provide higher kill rates against bacteria and algae at comparable or lower active levels. In sludge-dewatering and raw-water treatment, ethoxylated high purity octadecylamine with controlled molecular weight and charge density functions as a coagulant or coagulant aid, promoting aggregation of suspended solids, improving dewatering performance and reducing residual turbidity.

Rubber and Plastics Industry

• In rubber and plastics, High Purity Octadecylamine is used as an internal antistatic agent, lubricant and release agent across a broad range of polymers. As an antistatic additive in polyolefin films, ABS housings, electronic packaging materials and rubber conveyor belts, it is incorporated alone or in combination with other polar co-additives to reduce surface resistivity into the 10⁸–10⁹ ohm range. High purity material disperses more finely in polymer matrices and migrates in a more controlled manner to the surface, leading to more uniform antistatic performance in time and across the surface compared with lower-purity amines, which can cause uneven resistivity and spotting.
• As an internal and external lubricant, high purity octadecylamine is used in PVC, polyolefins and engineering plastics to reduce melt viscosity, improve flow and promote smooth demolding. In PVC formulations, it works with metal soaps and waxes to balance internal and external lubrication, while its lower impurity level allows usage at reduced dosage with the same or better torque reduction during processing and less plate-out on equipment. In polyolefins it is combined with erucamide and oleamide to create synergistic lubrication and slip systems; high purity octadecylamine provides early-stage lubrication in extrusion, while the amides contribute long-term slip performance. As a release agent, high purity octadecylamine is incorporated into rubber and plastic release systems for tires, seals, shoe soles and injection-molded parts, where its superior thermal stability and cleaner decomposition profile allow reliable demolding in high-temperature operations with lower residues on the mold and the finished part.

Coatings and Inks

• In coatings and printing inks, High Purity Octadecylamine is a functional intermediate for dispersants, rheology modifiers and surface-modifying additives. As a dispersant component in water-borne paints, solvent-borne coatings and ink colorants, it is combined with acrylic copolymers or fatty acids to generate pigment dispersants that deliver fine particle size and narrow distribution. When high purity feedstock is used, the resulting dispersant shows improved efficiency, enabling shorter grind times, lower mill energy consumption and excellent storage stability with minimal re-agglomeration of pigments such as titanium dioxide or metallic flakes.
• As a rheology modifier precursor, high purity octadecylamine is combined with clays, silica or other structuring agents to build thixotropic systems that prevent heavy pigment settling and control sagging during application. The more regular molecular structure supports stable three-dimensional networks that maintain anti-settling performance during prolonged high-temperature storage. In surface-modifying applications, low-level additions of high purity octadecylamine-based additives act as wetting, slip and anti-blocking agents, lowering surface tension to the high-20s mN/m and improving substrate wetting on low-energy materials without compromising gloss or weathering.

Mineral Flotation and Asphalt Emulsifiers

• High Purity Octadecylamine is an important cationic collector in mineral flotation, particularly for potash, phosphate and quartz-rich ores. Its primary-amine headgroup interacts with negatively charged sites on mineral surfaces, while the long C18 chain imparts hydrophobicity, enabling selective separation of valuable minerals from gangue. High purity material increases collector efficiency and selectivity, allowing lower collector dosages to achieve the same grade and recovery, and delivering more stable froths with less contamination from unwanted fine particles. In potash flotation, for example, high purity octadecylamine helps raise potassium recovery and concentrate grade compared with standard collectors.
• In the asphalt-emulsifier sector, high purity octadecylamine is used to prepare cationic emulsifiers that stabilize asphalt droplets in water. These emulsifiers are essential in high-solids cationic asphalt emulsions used for road construction, surface dressing and waterproofing membranes. Emulsifiers derived from high purity octadecylamine enable high solid content, good storage stability without phase separation and robust adhesion to mineral aggregates even at lower application temperatures. As a result, energy consumption during paving is reduced and road durability is improved, while the low level of impurities aids in meeting increasingly stringent environmental and performance requirements.

Advanced Materials, New Energy and Biomedicine

• Beyond traditional applications, High Purity Octadecylamine is increasingly used in advanced materials and new energy technologies. In lithium-ion battery electrolytes, small dosages of high purity octadecylamine function as performance additives that help optimize interfacial properties, enhance conductivity and improve cycling stability, especially at elevated temperatures. Its low impurity profile is critical in this context, since trace contaminants can accelerate gas evolution or undesirable side reactions at electrode surfaces.
• In nanomaterials and polymer nanocomposites, high purity octadecylamine is applied as a surface modifier for graphene, carbon nanotubes and other nanofillers. The amine headgroup can interact with functional groups on the nanomaterial or be used in further grafting reactions, while the long hydrophobic tail improves compatibility with non-polar or slightly polar polymer matrices. This results in finer dispersion, better mechanical reinforcement and more reliable electrical or barrier properties. In biomedicine and gene-delivery research, high purity octadecylamine provides a safer, more biocompatible base for cationic lipids and functionalized carriers, where ultra-low levels of secondary amines, heavy metals and other impurities are essential to meet toxicology and regulatory requirements.

Storage & Handling

• Store in tightly sealed containers in a dry, cool area.
• Keep away from heat and direct sunlight.
• Ensure containers are kept dry to prevent moisture absorption.
• Avoid contact with strong oxidizers or acids.
• Use grounding methods during handling to avoid static discharge.

Usage Notice

• Gently heat if product solidifies at low temperatures.
• Avoid exposure to moisture or prolonged high temperatures.
• Always wear appropriate protective gear when handling.
• Test compatibility with other chemicals before formulation.
• Adhere to local regulations for chemical handling and transport.
• High-end fabric softener formulation: quaternized high purity octadecylamine at about 8–15% with 2–5% fatty alcohol ethoxylates and 0.5–2% acetic acid in water provides strong softness, antistatic performance and longer fragrance retention on textiles.
• Premium hair conditioner formulation: 0.5–3% octadecyl trimethyl ammonium chloride from high purity octadecylamine combined with 1–15% cetyl or stearyl alcohol, 0.05–6% polymeric rheology modifiers and 0.5–20% glycerin in water delivers improved wet and dry combing, softness and gloss.
• Concentrated liquid laundry detergent formulation: 15–25% LAS and AES anionics with 1–3% high purity octadecylamine derivative, 10–20% builders and 3–8% hydrotropes in water achieves lower surface tension down to about 28–30 mN/m and stable foam in hard water.
• High-temperature lithium grease formulation: 80–85% mineral or synthetic base oil with 8–10% fatty acid, 1–3% high purity octadecylamine and 1.5–2.5% lithium hydroxide plus 1–3% antioxidants and EP additives yields greases with smaller changes in cone penetration and longer life at elevated temperatures.
• Polyurea grease formulation: 75–80% base oil with 3–5% diisocyanate, 2–4% high purity octadecylamine and 2–3% additive package provides more regular urea structures, higher shear stability and enhanced anti-wear properties.
• Water-based cutting fluid formulation: 15–25% mineral oil or synthetic ester, 2–5% high purity octadecylamine, 3–8% fatty acid soaps, 2–4% triethanolamine and 1–3% borates in water gives stable emulsions with reduced additive dosage but equal lubrication and rust protection.
• Rolling-oil formulation: 85–90% base oil with 3–5% high purity octadecylamine and 2–4% sulfur- or phosphorus-containing EP agents plus 0.5–1% antioxidant lowers rolling forces by around 10–15% and improves strip surface quality.
• Rubber-release formulation: 60–80% mineral or silicone oil with 5–10% high purity octadecylamine and 3–5% emulsifiers in 10–20% water provides efficient mold release for rubber goods with shorter demolding cycles and less mold cleaning.
• Polyurethane foam release formulation: 10–15% high purity octadecylamine in 80–85% hydrocarbon solvent with 3–5% surfactants and 0.5–1% antistatic agent shortens demolding cycles by about 15–20% and yields better foam surface finish.
• Cooling-water corrosion-inhibitor formulation: 3–5 ppm high purity octadecylamine combined with 5–10 ppm sodium molybdate, 1–2 ppm zinc salts and 2–5 ppm polyphosphates in circulating water provides corrosion rates around or above 98% inhibition.
• Industrial biocide formulation: 50–100 ppm quaternized high purity octadecylamine with 10–20 ppm isothiazolinone and 20–30 ppm glutaraldehyde plus buffering achieves rapid microbial kill and extended biocidal persistence in cooling and process water.
• Sludge-dewatering formulation: 0.1–0.5% high purity octadecylamine on sludge dry solids with 0.05–0.1% polyacrylamide and 1–3% lime improves aggregation and reduces sludge moisture content by several percentage points after dewatering.
• PE film antistatic formulation: 0.5–2% high purity octadecylamine with 0.2–0.5% glycerol monostearate and 0.1% antioxidant in polyethylene keeps surface resistivity below 10⁹ ohms for extended periods under moderate humidity.
• ABS antistatic formulation: 1–3% high purity octadecylamine in ABS resin with 0.5–1% alkyl phosphate and 0.5–1% compatibilizer gives low, uniform surface resistivity with reduced variation across the molded part.
• PVC lubrication formulation: 0.3–0.8% high purity octadecylamine with 0.5–1% calcium stearate and 0.5–1% paraffin for each 100 parts PVC resin improves melt flow while lowering required amine dosage by roughly 30–40% relative to standard grades.
• Polyolefin lubrication and slip formulation: 0.1–0.5% high purity octadecylamine with 0.1–0.3% erucamide and 0.1–0.3% oleamide in polyolefins reduces torque during processing and provides a balanced combination of initial and long-term slip.
• Paper softener formulation: AKD sizing components together with 5–8% octadecylamine polyoxyethylene ethers in water give improved paper handfeel and antistatic performance while maintaining printability.
• Water-borne paint dispersant formulation: 2–5% high purity octadecylamine, 1–3% acrylic copolymer and 0.1–0.5% silicone surfactant in water based on pigment weight produces fine pigment dispersions with stable particle size during storage.
• Thixotropic anti-settling formulation: 1–3% high purity octadecylamine with 3–5% organoclay or silica in coatings builds a stable three-dimensional network that controls sagging and prevents heavy-pigment settling over time.
• Potash-flotation collector formulation: 0.1–0.5 kg high purity octadecylamine per ton of ore in a suitable frother system enhances selectivity and recovery, yielding higher-grade potash concentrates with lower reagent consumption.

Packaging

• 160 kg iron drum
• 25 kg woven bag
• Available in waxy solid or flake form