Product Name: Dodecyltrimethylammonium chloride
Synonyms: Lauryltrimethylammonium chloride, DTAC
Chemical Formula: C15H34ClN
Molecular Weight: 263.9 g/mol
Supplier: Major chemical distributors and laboratories
Recommended Use: Textile laundering, disinfection, conditioner formulations, antistatic additives
Contact Info: Emergency response telephone and company address available upon packaging or invoice
Classification: Acute toxicity (Oral, Dermal), Skin irritation, Serious eye damage, Aquatic toxicity
Hazard Statements: Harmful if swallowed, causes skin irritation, risk of serious eye injury, toxic to aquatic organisms with long-lasting effects
Signal Word: Danger
Pictograms: Corrosive, Exclamation mark, Environment
Precautionary Statements: Avoid release to the environment, wear protective gloves and eye protection, avoid contact with skin, eyes, and clothing, wash hands thoroughly after handling
C hemical Name: Dodecyltrimethylammonium chloride
CAS No: 112-00-5
Concentration: 98-100% (pure form); commercial products 20-80% in water; varies with formulation
Impurities: Low molecular weight amines, unreacted raw materials
Other Cationic Surfactants in Use: Cetyltrimethylammonium bromide (CTAB), Benzalkonium chloride, Stearalkonium chloride
Relevant Exposure Limits: No established occupational exposure limits; handle as irritant
Inhalation: Remove to fresh air, seek medical attention if breathing problems persist, observe for delayed respiratory effects
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing, seek medical advice for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, continue rinsing, seek immediate ophthalmological advice
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical attention
Most Important Symptoms: Pain and redness to eye and skin, cough, difficulty breathing, gastrointestinal discomfort
Protection for First Responders: Gloves, safety goggles, face-shield, avoid direct contact
Extinguishing Media: Dry chemical powder, carbon dioxide, water mist, alcohol-resistant foam
Special Hazards: Incomplete combustion releases nitrogen oxides, hydrogen chloride, carbon monoxide
Protective Equipment: Full protective suit, self-contained breathing apparatus (SCBA), avoid smoke inhalation
Advice: Remove containers from fire area if possible, use water spray to cool surfaces exposed to fire, prevent runoff to sewers/waterways
Personal Precautions: Evacuate area, ventilate enclosed spaces, use personal protective equipment including gloves and goggles
Environmental Precautions: Prevent product from entering drains, surface waters, or soil, contain spillage with absorbents
Methods for Cleanup: Absorb with inert material (sand, earth, universal absorbent), collect in suitable, closed containers for disposal, clean with water after removal
Reporting Requirements: Report releases as required by local and national regulations, notify environmental authorities for large leaks
Safe Handling: Keep containers tightly closed, handle in well-ventilated areas, avoid breathing vapors and contact with skin/eyes
Storage Conditions: Store in original containers, out of direct sunlight, at below 30°C in dry, well-ventilated storage areas
Incompatibilities: Strong oxidizers, anionic surfactants, strong acids
Hygiene Measures: No eating, drinking or smoking during use, wash hands and face after handling, keep away from food and feedstuffs
Engineering Controls: Local exhaust ventilation, enclosed processing systems, emergency eyewash and showers in work area
Personal Protective Equipment: Chemical-resistant gloves (nitrile or neoprene), goggles or face shield, lab coat or chemical resistant apron
Respiratory Protection: Dust mask or respirator for dusty conditions or large spills
Exposure Limits: Not established by OSHA, ACGIH, or NIOSH; handle as hazardous material
Monitor Biological Exposure: No specific biomarkers for cationic surfactant exposure; medical surveillance recommended in frequent exposure workplaces
Appearance: White crystalline solid (pure), clear to hazy liquid (aqueous commercial solutions)
Odor: Mild, amine-like
pH: Approximately 5–8 (1% solution)
Melting Point: 237-240°C (pure salt)
Boiling Point: Decomposes before boiling
Flash Point: Not applicable (decomposes)
Solubility: Completely soluble in warm water, soluble in alcohols
Vapor Pressure: Negligible
Density: 0.98–1.04 g/cm³ (solution)
Partition Coefficient (log Kow): 0.5–2.5 (varies with chain length)
Auto-ignition Temperature: Not auto-ignitable
Chemical Stability: Stable under normal use and recommended storage conditions
Reactivity: Reacts with strong oxidizers, can form explosive mixtures with incompatible chemicals
Hazardous Decomposition: Hydrogen chloride, nitrogen oxides, carbon monoxide
Polymerization: Does not occur
Conditions to Avoid: Excessive heat, open flames, direct sunlight, mixing with anionic agents
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: LD50 (oral, rat) approximately 400–800 mg/kg; Dermal: moderate toxicity
Irritation: Causes severe irritation to eyes, moderate to strong skin irritant
Chronic Effects: Prolonged or repeated exposure can cause dermatitis, respiratory irritation
Symptoms: Redness, burning sensation, gastrointestinal upset, nausea on ingestion
Sensitization: No known potential for skin sensitization
Carcinogenicity/Mutagenicity: Not classified as carcinogenic or mutagenic by IARC, NTP, ACGIH, or OSHA
Ecotoxicity: Highly toxic to fish (LC50 values for rainbow trout around 0.2–1.0 mg/l), toxic to aquatic invertebrates, algae at low concentrations
Persistence and Degradability: Moderate persistence, partial biodegradation by adapted microorganisms,
Bioaccumulation Potential: Low to moderate, may bind to sediments
Mobility in Soil: Tends to adsorb to soils and sediments, risk of groundwater contamination is limited
Other Adverse Effects: Disrupts biological water treatment processes, foaming in effluent streams
Precautions: Avoid direct release to the environment
Waste Treatment Methods: Follow local, regional, and national regulations for disposal
Waste Disposal: Concentrated product and large volumes require incineration in licensed facility, do not pour into drains
Packaging: Rinse empty containers, dispose as hazardous waste
Special Precautions: Do not attempt to neutralize with acids or incompatible substances, avoid releases to sewers and surface waters
UN Number: 1759 (corrosive solid, n.o.s.)
UN Proper Shipping Name: Corrosive solid, n.o.s. (contains dodecyltrimethylammonium chloride)
Transport Hazard Class: 8 (corrosive)
Packing Group: III
Environmental Hazards: Marine pollutant
Special Precautions: Transport in tightly sealed containers, label correctly, avoid transport with food and animal feed products
TSCA Status: Listed in the Toxic Substances Control Act inventory
REACH Registration: Registered or pre-registered for import and use in EU
SARA Title III: Not classified as extremely hazardous substance, subject to reporting if thresholds are exceeded
Canadian WHMIS Classification: D2B (Toxic), E (Corrosive material)
Labeling Requirements: GHS/CLP pictograms and warning phrases
Other Requirements: Follow all state, national, and international regulations for workplace exposure, storage, transport, and disposal
