Amines, N-tallow alkyltrimethylenedi-, oleates

CAS Number 61791-53-5
Molecular Formula Variable (mixture of fatty amine salts)
Molecular Weight Variable (mixture of fatty amine salts)
Purity ≥99.0%
Appearance Brown paste

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Product Description

Amines, N-tallow alkyltrimethylenedi-, oleates is a versatile chemical compound with a wide range of industrial and cosmetic applications. It is a salt formed from the reaction of tallow-derived diamines and oleic acid, resulting in a mixture with variable composition based on the fatty acid profile of tallow. Amines, N-tallow alkyltrimethylenedi-, oleates functions as a surfactant, corrosion inhibitor, and emulsifier in industrial applications such as metalworking fluids, coatings, and lubricants. In the cosmetic industry, it serves as a conditioning and emulsifying salt, derived from animal fat and vegetable oil, making hair and skin feel soft, smooth, and manageable. It is also used as a pigment dispersant and wetting agent. Known by various synonyms including N-tallow-1,3-diaminopropane dioleate and Duomeen TDO, Amines, N-tallow alkyltrimethylenedi-, oleates is a key ingredient in many formulations due to its multifunctional properties.

Synthesis Methods

  • General Synthesis: The compound is synthesized by reacting tallow-derived diamines with oleic acid. The resulting product is a mixture of fatty amine salts.

  • Chemical Reaction: The nitrogen atoms in the diamine are protonated by oleic acid, forming a diquaternary ammonium salt.

Uses

  • Surfactant: Widely used as a surfactant in various industrial applications.

  • Corrosion Inhibitor: Used in oilfield and metalworking fluids.

  • Emulsifier: Helps in forming stable emulsions in products like lotions and creams.

  • Antistatic Agent: Prevents the build-up of static electricity in hair and textiles.

  • Conditioning Agent: Provides softness, manageability, and anti-static properties in hair and skin care products.

  • Lubricant Additive: Improves lubrication properties in industrial applications.

  • Paints, Coatings, and Inks: Acts as a wetting agent, dispersing agent, adhesion promoter, and corrosion inhibitor.

  • Sealants: Enhances water resistance in construction and marine sealants.

  • Mining and Mineral Processing: Acts as a collector in the flotation separation of minerals.

  • Hydrophobing Agent: Imparts water-repellent properties to surfaces.

Chemical Properties and Structure

  • Chemical Name: Amines, N-tallow alkyltrimethylenedi-, oleates

  • CAS Number: 61791-53-5 (commonly listed as 61791-55-7 or 68155-38-4 depending on manufacturer)

  • Appearance: Solid, white to yellowish; can also appear as a brown viscous liquid or paste

  • Odor: May have a characteristic odor, often described as a strong amine odor

  • Solubility: Insoluble in water; soluble in organic solvents, dispersible in water (forms emulsions)

  • Structure: A tallow alkyl group attached to a trimethylenediamine backbone, forming a salt or complex with oleic acid

Physical Properties

  • Appearance: Brown paste with a slight ammoniacal odor

  • Melting Point: 30-40°C

  • Density: Approximately 0.87 (865 kg/m³ at 65°C)

  • Flash Point: 100-199°C (Pensky-Martens method)

  • Boiling Point: >250°C

Safety and Hazards

  • GHS Classification: May meet GHS hazard criteria for corrosive, irritant, and environmental hazards.

  • Hazard Statements: Causes severe skin burns (H314) and serious eye damage (H318).

  • Precautionary Measures:

    • Prevention: Avoid breathing vapors or mists; wear protective gloves, clothing, eye/face protection; handle in well-ventilated areas.

    • Response: If swallowed, rinse mouth but do not induce vomiting; if inhaled, move to fresh air; if in eyes, rinse immediately with water for several minutes and seek medical help; wash contaminated clothing before reuse.

    • Storage: Keep container tightly closed in a cool, dry, well-ventilated place, locked up and away from incompatibles or food.

    • Disposal: Dispose of in accordance with local regulations at an approved facility.

  • Handling Instructions: Use non-sparking tools to prevent fire/explosion risks; avoid dust/aerosol formation; ensure adequate ventilation and personal protective equipment (e.g., chemical-impermeable gloves, safety goggles, full-face respirator if exposure limits exceeded).

  • Accidental Release: Evacuate area, avoid contact/inhalation, contain spill without creating dust, collect in suitable containers using explosion-proof equipment, and prevent environmental discharge.

  • Toxicity/Environmental Impact: Limited data available, but as a corrosive substance, it poses risks to skin, eyes, and respiratory system; avoid release to drains or environment.

Safety Data

  • Hazard Class: 8 (Transport No. 1760, Packing Group III)

  • Thermal Decomposition Temperature: 65-75°C

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