Cetyl Trimethyl Ammonium Chloride Amaris Chemicals
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COSMETIC GRADE PHARMACEUTICAL GRADE

Cetyl Trimethyl Ammonium Chloride

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Cetyl Trimethyl Ammonium Chloride (CTAC) is a cationic surfactant and quaternary ammonium compound characterized by a long hydrophobic cetyl (C16) alkyl chain and a positively charged ammonium head group. It appears as a white to pale yellow powder or flakes, soluble in water, and exhibits strong surface-active properties. CTAC is widely used in cosmetics, personal care, and industrial applications for its excellent conditioning, antistatic, emulsifying, and disinfectant capabilities. It functions primarily as a fabric softener, hair conditioner, and antimicrobial agent.

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Description

Cetyl Trimethyl Ammonium Chloride 

Primary Uses 

  1. Cosmetics & Personal Care
  • Acts as a conditioning agent in shampoos, conditioners, and hair treatments to reduce static and improve hair softness and manageability.
  • Used as an emulsifier and stabilizer in creams, lotions, and other topical formulations.
  • Provides antistatic properties in hair styling products and leave-on conditioners.
  • Functions as an antimicrobial preservative and disinfectant in personal hygiene products.
  1. Industrial Applications
  • Employed as a fabric softener and antistatic agent in textile processing and laundry detergents.
  • Used in emulsion polymerization as a surfactant and dispersing agent.
  • Serves as a biocide and disinfectant in water treatment and cleaning products.

Secondary Uses 

  1. Pharmaceuticals
  • Occasionally used as an antiseptic or preservative in topical pharmaceutical formulations.
  1. Agriculture
  • Used in certain pesticide formulations as a surfactant to improve spreading and adhesion.
  1. Oil & Gas
  • Utilized as an emulsifier and corrosion inhibitor in enhanced oil recovery processes and drilling fluids.
KEY PRODUCT FEATURES

1. Basic Identification Attributes

  • Chemical Name (IUPAC): Hexadecyl(trimethyl)azanium chloride
  • Common/Trade Name: Cetyl Trimethyl Ammonium Chloride, CTAC
  • CAS Number: 112-02-7
  • HS Code: 2923.29.00
  • Molecular Formula: C19H42ClN
  • Molecular Weight: 320.0 g/mol
  • Synonyms:
    • Hexadecyltrimethylammonium chloride
    • CTAC

2. Physical & Chemical Properties

  • Physical State: White to pale yellow granular powder or flakes
  • Color & Odor: White to pale yellow; mild ammonium-like odor
  • Melting Point: ~237°C (decomposes)
  • Boiling Point: Decomposes before boiling
  • Density: ~0.9 g/cm³ (solid form)
  • Solubility:
    • Soluble in water (highly soluble)
    • Insoluble in oils and non-polar solvents
  • pH (1% aqueous): ~5–7
  • Stability: Stable under normal storage conditions; sensitive to strong oxidizers

3. Safety & Hazard Attributes

  • Hazard Class (GHS): Skin irritant and eye irritant (Category 2)
  • NFPA Ratings:
    • Health: 2
    • Flammability: 1
    • Reactivity: 0
  • Exposure Limits: Not specifically established; use appropriate PPE
  • Toxicity: Moderate toxicity; avoid prolonged skin or eye contact
  • Reactivity: Stable; incompatible with strong oxidizing agents

 4. Storage & Handling Attributes

  • Storage Conditions: Store in a cool, dry, well-ventilated area away from incompatible substances
  • Container Type: Sealed polyethylene or polypropylene containers
  • Shelf Life: Typically 2–3 years under proper storage
  • Special Handling: Avoid dust formation and contact with eyes and skin; use PPE during handling

5. Regulatory & Compliance Attributes

  • FDA Status: Approved for limited use in cosmetics (as per cosmetic regulations)
  • REACH Status: Registered
  • Transportation: Not classified as hazardous for transport
  • Waste Disposal: Dispose in accordance with local environmental regulations

6. Environmental & Health Impact

  • Ecotoxicity: Toxic to aquatic organisms; avoid release into waterways
  • Persistence: Moderately biodegradable
  • Bioaccumulation: Low potential for bioaccumulation
  • Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic
  • Biodegradability: Partial biodegradability
SAFETY HANDLING PRECAUTIONS

Safety Handling Precautions

  • PPE: Wear gloves, protective goggles, and dust mask when handling powders
  • Handling: Avoid inhalation of dust and contact with skin and eyes
  • Storage: Keep container tightly closed, store away from heat and incompatible materials
  • Hygiene: Wash hands after handling; do not eat, drink, or smoke during use

First Aid Measures

  • Inhalation: Move to fresh air immediately; seek medical attention if breathing difficulty occurs
  • Skin Contact: Wash affected area thoroughly with soap and water; seek medical attention if irritation persists
  • Eye Contact: Rinse cautiously with water for several minutes; remove contact lenses if present; seek medical help
  • Ingestion: Rinse mouth; do not induce vomiting; seek medical advice immediately

Firefighting Measures

  • Fire Hazards: Combustible; may produce toxic fumes including nitrogen oxides and hydrogen chloride
  • Extinguishing Media: Use water spray, foam, dry chemical, or CO₂
  • Special Precautions: Firefighters should wear full protective gear and self-contained breathing apparatus
  • Decomposition Products: Hydrogen chloride, nitrogen oxides, carbon monoxide, carbon dioxide

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