Product Name: Butyltrimethylammonium Chloride
Synonyms: N,N,N-Trimethyl-1-butanaminium chloride
CAS Number: 1112-67-0
Relevant Uses: Used as a phase transfer catalyst and surfactant in industrial processes
Manufacturer: Chemical supplier’s details, emergency telephone number, and address provided directly by distributor
Emergency Contacts: Chemtrec 1-800-424-9300 and local emergency services
Date of Revision: June 2024
Recommended Restrictions: Not for food, drug, or household use; only for industrial and laboratory applications
Formula: C7H18ClN
GHS Classification: Acute Toxicity (Oral, Dermal, Inhalation) Category 4, Skin Irritation Category 2, Eye Irritation Category 2A
Signal Word: Warning
Hazard Statements: Harmful if swallowed, causes skin and eye irritation, may be harmful if inhaled
Pictograms: Exclamation mark
Precautionary Statements: Avoid breathing dust, wash hands thoroughly after handling, wear protective gloves and eye protection, do not eat or drink near chemical
Potential Health Effects: Short-term exposure provokes skin and eye irritation, ingestion results in discomfort, repeated or prolonged contact dries out skin or damages eyes,
Environmental Hazards: May cause damage to aquatic environments if released in large amounts
NFPA Rating: Health: 2, Flammability: 1, Reactivity: 0
Chemical Name: Butyltrimethylammonium Chloride
Common Name: Quaternary ammonium salt
CAS Number: 1112-67-0
Concentration: ≥98% Butyltrimethylammonium Chloride
Impurities/Stabilizers: Residual organic impurities below 2% depending on grade
Inhalation: Move victim to fresh air, keep warm and at rest, if breathing becomes difficult seek medical attention
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing; seek medical care for any sustained irritation
Eye Contact: Immediately flush eyes with running water for at least 15 minutes, keep eyelids open, avoid rubbing; consult ophthalmologist for pain or redness
Ingestion: Rinse mouth, do not induce vomiting, seek medical attention immediately
Advice to Physicians: Treat based on symptoms, monitor vital signs, provide supportive care, no specific antidote known, control of airway and breathing remains key
Suitable Extinguishing Media: Use water spray, dry powder, alcohol-resistant foam, or carbon dioxide
Unsuitable Extinguishing Media: Do not use strong water jets which could spread the chemical
Specific Hazards: Releases toxic fumes under fire, such as hydrochloric acid, nitrogen oxides
Protective Equipment: Firefighters should use self-contained breathing apparatus and protective clothing
Firefighting Instructions: Cool containers exposed to flames, evacuate area, control runoff water
Explosion Sensitivity: Not highly combustible and not expected to create explosive mixtures with air
Personal Precautions: Wear protective gloves, goggles, respirator as needed for dust, and appropriate protective suits
Environmental Precautions: Prevent entry into sewers, drains, waterways or soil, alert local authorities in case of significant spill
Methods for Cleanup: Collect spilled material with non-sparking tools, sweep up, bag for disposal, ventilate area, wash residue with water or neutralizing solution
Small Spills: Wipe up with absorbent material
Large Spills: Evacuate non-essential staff, use barriers to contain, transfer to suitable waste containers, decontaminate zone with detergent solution
Handling: Avoid direct exposure, limit dust generation or inhalation, use only in well-ventilated environments, practice good personal hygiene
Storage: Store in tightly closed containers in a dry, cool, and well-ventilated area,
Incompatible Materials: Strong oxidizing agents, acids, and bases
Special Handling Recommendations: Handle with equipment for chemical use, avoid unnecessary transport, follow local regulations for chemical storage
Occupational Exposure Limits: None established specifically for butyltrimethylammonium chloride, maintain dust levels low as practicable
Engineering Controls: Use process enclosures, local exhaust ventilation
Personal Protective Equipment: Wear chemical-resistant gloves (nitrile or neoprene), safety goggles or face shield, long-sleeve lab coat or chemical apron
Respiratory Protection: Use appropriate certified respirators in cases of high dust or inadequate ventilation
Hygiene Measures: Wash hands before eating, avoid smoking in work areas, launder contaminated clothing before reuse
Appearance: White crystalline powder or solid
Odor: Mild, amine-like
Odor Threshold: Not readily available
pH: 4.5–7.0 (1% solution, 20°C)
Melting Point/Freezing Point: 218–220°C
Boiling Point / Range: Decomposes before boiling
Flash Point: Not applicable (non-flammable solid)
Evaporation Rate: Not applicable
Flammability: Not known to be flammable
Upper/Lower Flammable Limits: Not determined
Vapor Pressure: Negligible at room temperature
Vapor Density: Not applicable
Relative Density: 1.00–1.10 (bulk)
Solubility: Readily soluble in water, moderate in ethanol, low in nonpolar solvents
Partition Coefficient (n-octanol/water): Not established
Auto-ignition Temperature: Not determined
Decomposition Temperature: Above 220°C
Viscosity: Not applicable for solid
Chemical Stability: Stable under standard conditions and normal use
Conditions to Avoid: Excessive heat, open flames, moisture, high humidity
Incompatible Materials: Acids, strong oxidizers, alkali metals
Hazardous Decomposition Products: On combustion releases toxic fumes such as hydrogen chloride, ammonia compounds, nitrous gases
Polymerization: Not known to undergo hazardous polymerization
Likely Routes of Exposure: Inhalation, ingestion, skin, or eye contact
Acute Toxicity: LD50 (oral, rats) estimated at 300–2000 mg/kg; similar quaternary ammonium compounds suggest moderate toxicity
Skin Corrosion/Irritation: Causes moderate to severe irritation
Eye Damage/Irritation: Causes significant irritation and possible corneal injury
Respiratory Sensitization: Some risk for respiratory discomfort or irritation from dust exposure
Skin Sensitization: No clear evidence for sensitization, but repeated use may cause dermatitis
Chronic Effects: Prolonged contact can worsen dermatitis, affects mucous membranes with repeated exposure
Carcinogenicity: No data from IARC or OSHA points to carcinogenic risk at normal exposure
Reproductive Toxicity: No specific studies to date
Mutagenicity: Not classified for genetic harm
Symptoms of Exposure: Redness, itching, burning on skin or eyes, sore throat if inhaled
Ecotoxicity: Hazardous when discharged directly in bulk to waterways, demonstrated toxicity for aquatic invertebrates and plants at high concentrations
Persistence and Degradability: Slowly degrades biologically, persistence possible in low-oxygen or poor microbiological conditions
Bioaccumulative Potential: No significant potential observed for bioaccumulation
Mobility in Soil: Highly water soluble, can migrate in moist soils and leach to groundwater if uncontrolled
Other Adverse Effects: Avoid direct discards to lakes, streams, or other water bodies to protect aquatic life
Waste Disposal Method: Treat as hazardous chemical waste, follow federal and state regulations, incinerate with proper controls or send to approved chemical landfill
Container Disposal: Empty containers require triple rinsing, then puncture or crush before approved landfill or drum reconditioning
Special Precautions: Do not release to environment, segregate from incompatible wastes, document waste tracking for regulatory compliance
UN Number: Not assigned for this compound in typical uses
UN Proper Shipping Name: Not classed as dangerous goods under main transport laws
Transport Hazard Class: Not regulated under DOT/IATA/IMDG for standard packaging, check local exceptions
Packing Group: Not regulated
Environmental Hazards: Marine pollutant only in significant accidental bulk release
Special Precautions: Avoid direct sunlight and rough handling during transport, store upright and secured during transit
OSHA Status: Not listed as a hazardous chemical under OSHA’s Hazard Communication Standard
TSCA Inventory: Listed in the TSCA Inventory for use in the United States
SARA 313: Does not contain reportable components
California Proposition 65: Not known to contain chemicals listed
WHMIS Classification (Canada): Unregulated, chemical safety training recommended
REACH Regulation (EU): Registered with dossier available, not identified as a Substance of Very High Concern
Chemical Control Laws: Compliant for use and transport in most jurisdictions with standard permitting and reporting
Restriction of Use: See local environmental, occupational, and health guidelines for further restrictions or permitted uses
