Chemical Name: Methyltriethylammonium Chloride
Synonyms: Triethylmethylammonium Chloride
CAS Number: 56-37-1
Molecular Formula: C7H18ClN
Manufacturer Information: Supplier information and emergency contact details must always be kept visible in warehouse or laboratory storage.
Recommended Use: Utilized in organic synthesis, phase transfer catalysis, and laboratory research.
Classification: Classified as an irritant to eyes, skin, and respiratory system. Not labeled as carcinogenic or mutagenic under GHS.
Hazard Statements: Causes skin and eye irritation. Prolonged exposure can induce respiratory discomfort.
Signal Word: Warning
Precautionary Statements: Avoid breathing dust or vapors. Use gloves and goggles. Wash exposed skin with soap and water after handling.
Emergency Overview: Colorless to pale yellow crystal. Strong ammonium odor. Spills may create slip risk and health hazards.
GHS Pictograms: Exclamation mark symbol.
Chemical Name: Methyltriethylammonium Chloride
Synonyms: N,N,N-Triethylmethanaminium chloride
Concentration: 98-100% active component
CAS Number: 56-37-1
Impurities: No significant impurities affecting classification.
Eye Contact: Flush immediately with running water for at least 15 minutes, keeping eyelids open. Seek medical help if irritation develops.
Skin Contact: Remove contaminated clothing. Wash contact area thoroughly with soap and water. Medical attention required for persistent symptoms.
Inhalation: Move exposed person to fresh air. Loosen tight clothing. Give artificial respiration if breathing stops. Medical attention needed for symptoms.
Ingestion: Rinse mouth. Seek immediate medical advice. Do not induce vomiting. Never provide anything orally to an unconscious individual.
Most important symptoms: Irritation, redness, coughing, difficulty breathing in extreme cases.
Suitable Extinguishing Media: Foam, carbon dioxide, dry chemical, or water spray.
Unsuitable Extinguishing Media: Strong water jets may spread product.
Hazardous Combustion Products: Releases nitrogen oxides, hydrogen chloride, and irritating fumes when burning.
Protective Equipment: Firefighters must wear chemical-resistant suits, self-contained breathing apparatus.
Special Precautions: Remove undamaged containers from hazardous area if safe. Avoid runoff into sewers and watercourses. Use water spray to cool exposed containers.
Personal Precautions: Wear protective gloves, goggles, and chemical-resistant clothing. Evacuate unprotected personnel.
Environmental Precautions: Prevent product from entering drains, waterways, or soil.
Containment and Cleanup: Use absorbent materials like sand or vermiculite to contain spills. Shovel collected substance into labeled containers for disposal. Ventilate area.
Reference to Other Sections: Dispose in accordance with regulatory section. Consider ventilation and fire precautions.
Safe Handling: Use only in well-ventilated areas. Keep container tightly closed when not in use. Ground and bond all transfer equipment to prevent static sparking.
Hygiene Measures: No eating, drinking, or smoking around chemical. Wash hands thoroughly after handling.
Storage Needs: Store in a cool, dry, well-ventilated location away from moisture and incompatible substances like strong oxidizers.
Container Requirements: Maintain original packaging or use chemical-resistant drums with secure closures. Inspect containers regularly for leaks.
Engineering Controls: Maintain local exhaust ventilation or adequate general ventilation to minimize airborne concentrations.
Personal Protective Equipment: Safety goggles, chemically resistant gloves (e.g., nitrile), lab coat or full-body suit, and respiratory protection if dust or vapor formation is present.
Occupational Exposure Limits: No specific limits published. Use general guidelines for irritant substances.
Hygiene Recommendations: Deliberate practices such as not touching face or eyes, removing and cleaning uniforms regularly, and prompt treatment for symptoms reduce risk.
Appearance: Colorless to pale yellow crystalline powder
Odor: Mild ammonium
Odor Threshold: Not established
pH: 6–8 (1% aqueous solution)
Melting Point: 192–196°C
Boiling Point: Decomposes before boiling
Flash Point: Not determined (solid, unlikely hazard)
Solubility: Highly soluble in water, soluble in ethanol
Vapor Pressure: Negligible at room temperature
Relative Density: ~1.05 g/cm³
Partition Coefficient (log Kow): Not determined
Decomposition Temperature: Above 200°C
Stability: Stable under recommended storage and handling conditions.
Possible Reactions: Contact with strong oxidizers may result in violent reaction or fire.
Decomposition: Heat or fire leads to emission of toxic nitrogen oxides and hydrogen chloride.
Avoid: Heat, moisture, open flames, strong acids, and oxidizing agents.
Polymerization: Does not polymerize.
Routes of Exposure: Inhalation, ingestion, skin, and eye contact.
Acute Effects: Irritation or redness at point of contact. Prolonged inhalation causes respiratory discomfort.
Chronic Effects: No long-term effects documented in available literature. Repeated exposure increases chance of dermatitis or respiratory problems.
LD50/LC50 Values: Oral LD50 (rat) >2000 mg/kg (estimated, refer to laboratory animal data).
Carcinogenicity: Not listed in IARC, NTP, or OSHA databases as carcinogen.
Mutagenicity, Reproductive Effects: Evidence lacking in accessible records to link this substance to genetic or reproductive hazards.
Aquatic Toxicity: Harmful to aquatic organisms with potential for prolonged adverse effects in aquatic environments.
Persistence and Degradability: Moderately persistent in soil and water. Ultimate biodegradation not rapid.
Bioaccumulation: Potential for bioaccumulation exists but is not well documented.
Mobility in Soil: Highly soluble, likely mobile in groundwater if released on large scale.
Other Adverse Effects: Negligible impact expected for terrestrial wildlife when properly controlled. Uncontrolled raising concentration leads to environmental stress.
Waste Disposal: Must be incinerated or disposed in hazardous chemical landfill in accordance with local, regional, and national regulations.
Packing Material: Contaminated packaging must be emptied and rinsed. Disposal routes must follow hazardous waste guidelines.
Contaminated Material Procedure: Absorb spills with inert material and label waste containers. Do not allow washed material to reach surface water or sewers.
Precautions: Trace residues after cleanup should receive the same attention as bulk material. Document all disposal in compliance logs.
UN Number: Not assigned for this compound. Refer to local substance-specific transport codes where applicable.
Transport Hazard Class: Non-regulated under most international transport requirements but confirm with airline or shipping regulation if transporting significant amounts.
Packing Group: Not assigned
Environmental Hazards: Not classified as a marine pollutant, but avoid release to environment for large shipments.
Special Transport Precautions: Use unbreakable, tightly sealed containers. Documentation detailing product hazards must accompany transfer.
Safety, Health and Environmental Regulation: Covered under OSHA Hazard Communication Standard in the US, REACH regulation in Europe. Local instructions and reporting requirements for storage and use may apply depending on jurisdiction.
Chemical Inventories: Listed in U.S. TSCA, Canada DSL, EINECS, and other national inventories.
Labeling Information: Signal word and pictograms present on container labels.
Additional Requirements: Risk assessment and workplace exposure monitoring recommended for repeat users. Staff training for handling, personal protective equipment, emergency spill management are all legal obligations under chemical safety standards.
