Lauryldimethylamine

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1. Chemical Structure and Properties

Molecular Formula: C14H31N
Structural Formula: CH3(CH2)11N(CH3)2 — A tertiary amine with a lauryl (C12) alkyl chain and two methyl groups attached to the nitrogen atom.
Physical Properties:

Appearance: Colorless to pale yellow viscous liquid
Boiling Point: ~260°C
Density: ~0.83 g/cm³ at 20°C
Solubility: Slightly soluble in water; miscible with alcohols, ketones, and most organic solvents

2. Industrial Applications

Surfactants and Detergents: Key ingredient in cationic surfactants for shampoos, fabric softeners, and personal care products
Chemical Intermediate: Used in the synthesis of quaternary ammonium salts and specialty chemicals
Water Treatment: Acts as a flocculant and corrosion inhibitor in industrial water systems
Agriculture: Serves as an intermediate in pesticide and herbicide formulations

3. Safety and Toxicology

Health Hazards: Can cause skin and eye irritation; prolonged exposure may lead to dermatitis
Inhalation: May irritate respiratory tract if vapors are inhaled
Fire & Explosion: Combustible liquid; avoid open flames and high heat
Protective Measures: Use gloves, goggles, and ensure proper ventilation; in case of contact, rinse thoroughly with water and seek medical attention if irritation persists

4. Environmental and Regulatory Considerations

Environmental Impact: Biodegradable under aerobic conditions; low aquatic toxicity
Regulatory Compliance: Listed on TSCA (USA); REACH compliant (EU)
Transport: UN 2735 (Class 8 corrosive) labeling recommended for concentrated formulations

5. Case Studies and Application Insights

Fabric Softener Production: Lauryldimethylamine-derived quaternary salts improve softness and reduce static in textiles
Personal Care Formulations: Enhances foam and conditioning properties in shampoos and lotions
Water Treatment Efficiency: Provides effective corrosion inhibition and flocculation in industrial water systems