Product Name: Dioctadecyldimethylammonium Chloride
Chemical Formula: C38H80ClN
CAS Number: 107-64-4
Synonyms: Distearyldimethylammonium chloride, DODMAC, Cationic surfactant
Recommended Use: Antimicrobial agent, fabric softener ingredient, phase transfer catalyst, biocide
Restrictions: Industrial and laboratory use only, not intended for food or drug manufacture
Supplier Details: Manufacturer’s name, address, and emergency contact phone number should be stated on packaging
GHS Classification: Acute toxicity (Oral), Skin corrosion/irritation, Serious eye damage/eye irritation, Hazardous to aquatic environment (acute and chronic)
Label Elements: Danger signal word, corrosive pictograms, environmental pictograms
Hazard Statements: Harmful if swallowed; causes severe skin burns and eye damage; very toxic to aquatic life with long lasting effects
Precautionary Statements: Wear protective gloves, clothing, eye and face protection; avoid release to the environment; wash hands thoroughly after handling; in case of inadequate ventilation use respiratory protection
Chemical Name: Dioctadecyldimethylammonium chloride
Concentration: Typically 95-100% purity as supplied; check supplier documentation for lower concentrations
Impurities: Long-chain alkylamines (<1%), water, traces of related quaternary ammonium compounds
General Advice: Take exposed person to safe location, remove contaminated clothing, and ensure medical attention follows as soon as possible
Inhalation: Move victim to fresh air; provide oxygen if breathing is difficult; seek immediate medical help
Skin Contact: Rinse affected skin area with plenty of running water and soap; do not rub; remove contaminated clothing/shoes
Eye Contact: Flush eyes with water for at least 15 minutes keeping eyelids open and moving; seek quick medical evaluation
Ingestion: Rinse mouth with water; do not induce vomiting; if conscious, give small amount of water; call poison control center or nearest emergency care provider rapidly
Suitable Extinguishing Media: Dry chemical, carbon dioxide, alcohol-resistant foam, water spray (for large fires only)
Unsuitable Extinguishing Media: Strong water jets that might spread product
Hazards from Combustion: Releases hydrogen chloride gas, nitrogen oxides, carbon oxides, irritating vapors
Special Protective Equipment: Wear self-contained breathing apparatus, full protective suit; move containers from fire area if possible
Special Procedures: Cool fire-exposed containers using water spray; prevent contaminated firefighting water from entering drains or waterways
Personal Precautions: Evacuate area, ventilate, avoid breathing vapors or dust, use full PPE including chemical-resistant gloves and goggles
Environmental Precautions: Prevent spillage from reaching drains or water bodies, contain using soil or inert absorbent
Cleanup Procedures: Collect using shovel or vacuum with HEPA filter; transfer to properly labeled waste container; clean spill area with plenty of water and detergent
Handling: Work with product in well-ventilated area; avoid direct contact with skin, eyes, or clothing; do not eat, drink, or smoke while handling
Storage Conditions: Store in tightly sealed original container in cool, dry, well-ventilated place; keep away from acids and strong oxidizers; store away from incompatible materials such as anionic surfactants and reducing agents; keep out of reach of children
Exposure Limits: No established occupational exposure limits; minimize exposure as a precaution
Engineering Controls: Use local exhaust ventilation, fume hoods, eyewash stations, and safety showers
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), protective goggles or face shield, chemical-resistant lab coat or apron, approved respirator when exposure risks exist, closed footwear
Appearance: White to off-white waxy solid, crystalline or powder form
Odor: Mild, characteristic amine odor
Melting Point: 65–71°C (approximate range depending on purity)
Boiling Point: Decomposes before boiling
Solubility: Soluble in ethanol, chloroform; limited solubility in water
pH: 4–7 (1% aqueous solution)
Vapor Pressure: Negligible
Relative Density: 0.96–1.0 (at 20°C)
Partition Coefficient (n-octanol/water): High; expected to be strongly adsorptive to solids
Other Data: Non-volatile, not explosive under normal conditions
Chemical Stability: Stable at room temperature under recommended storage conditions
Incompatible Materials: Strong oxidizers, anionic surfactants, acids, strong bases, strong reducing agents
Hazardous Decomposition Products: Hydrogen chloride, carbon oxides, nitrogen oxides
Hazardous Polymerization: Not expected to occur under normal conditions
Routes of Exposure: Skin contact, eye contact, inhalation of dust or mist, ingestion
Acute Toxicity (Oral): LD50 (rat) approximate 400–1700 mg/kg
Skin Corrosion/Irritation: Causes burns; corrosive to skin, prolonged exposure worsens effects
Eye Damage/Irritation: Severe irritant and corrosive
Sensitization: No strong evidence of skin sensitization from available studies
Chronic Effects: Prolonged or repeated exposure can cause dermatitis or tissue damage to exposed areas
Carcinogenicity/Mutagenicity/Reproductive Toxicity: Based on available data, not classified as carcinogenic, mutagenic, or toxic to reproduction
Aquatic Toxicity: Extremely toxic to aquatic life; LC50 for fish (96h) = 0.1–1 mg/L; EC50 for Daphnia = less than 0.5 mg/L
Persistence and Degradability: Limited biodegradability; strongly binds to soil and sediment
Bioaccumulation: Potential for bioaccumulation due to strong adsorption to solids
Mobility in Soil: Low mobility; quickly associates with organic matter and clay
Other Adverse Effects: Product poses hazard to aquatic environments if released in significant amounts
Disposal Methods: Dispose in accordance with local, regional, and national regulations; use licensed hazardous waste contractor
Contaminated Packaging: Empty containers must be triple-rinsed with water, remains collected and disposed as chemical waste
Precautions: Do not flush product, concentrated washings, or contaminated materials into sewers, drains, or waterways
UN Number: 2922
UN Proper Shipping Name: Corrosive liquid, toxic, n.o.s. (Dioctadecyldimethylammonium chloride)
Transport Hazard Class: 8 (Corrosive), subsidiary risk: 6.1 (Toxic)
Packing Group: II
Environmental Hazards: Marine pollutant
Special Precautions: Secure loads, keep away from acids/foodstuffs, emergency response documentation required when shipping
TSCA Status (US): Listed on inventory
EINECS/ELINCS (EU): Listed (203-515-8)
REACH Registration: Compliant where manufactured or imported above threshold quantities
OSHA Hazard: Classified as hazardous according to 29 CFR 1910.1200
Other: Subject to workplace safety requirements, chemical storage, environmental release controls in most jurisdictions
