Product Name: Tetrabutyl-Ammonium Methylsulfonate
Chemical Family: Quaternary ammonium compounds
CAS Number: 37778-42-0
Synonyms: TBA methylsulfonate
Recommended Uses: Laboratory reagent, phase transfer catalyst, research chemical
Supplier Contact: Name, Address, Phone, Emergency Contact Number (specific details depend on vendor)
GHS Classification: Eye Irritant Category 2A, Skin Irritant Category 2
Signal Word: Warning
Hazard Statements: Causes skin irritation. Causes serious eye irritation. May cause respiratory tract irritation.
Precautionary Statements: Avoid breathing dust or vapor. Wash hands thoroughly after use. Wear protective gloves, protective clothing, eye protection, face protection. If in eyes: rinse cautiously with water for several minutes. If inhaled: remove to fresh air.
Pictograms: Exclamation Mark symbol
Other Hazards: Not a combustible dust, no known acute toxicity in low quantities
Chemical Name: Tetrabutyl-Ammonium Methylsulfonate
CAS Number: 37778-42-0
Concentration: ≥ 98% by weight
Impurities: Not expected above 2%
Additives: None
Molecular Formula: C17H39NO3S
Inhalation: Move person to fresh air. If breathing is difficult, seek immediate medical attention. Provide artificial respiration if needed.
Skin Contact: Wash with plenty of soap and water for at least 15 minutes. Remove contaminated clothing. Seek medical advice for persistent irritation.
Eye Contact: Rinse well with water for several minutes, lifting eyelids. Remove contact lenses if present. Continue rinsing and seek medical attention.
Ingestion: Rinse mouth. Do not induce vomiting unless instructed by medical personnel. Get medical help if feeling unwell.
Most Important Symptoms: Redness, stinging, irritation of skin or eyes, coughing
Suitable Extinguishing Media: Dry chemical, foam, carbon dioxide, water spray (for larger fires)
Unsuitable Media: Direct water stream may spread material
Fire Hazards: May produce hazardous fumes: carbon monoxide, carbon dioxide, nitrogen oxides, sulfur oxides
Protective Equipment: Firefighters should use self-contained breathing apparatus and chemical protective clothing
Special Procedures: Move containers away from fire area, cool with spray if possible; avoid inhalation of combustion products
Personal Precautions: Wear chemical-resistant gloves, goggles, protective clothing
Environmental Precautions: Prevent entry into drains or waterways, contain spill with inert absorbent
Cleanup Methods: Sweep up and place into suitable containers for disposal. Ventilate area well. Decontaminate surfaces with soap and water
Notification: Report releases to local authorities if required by regulations; avoid dust formation
Handling: Work in a well-ventilated area. Minimize dust generation. Avoid skin, eye, and clothing contact.
Storage Conditions: Store in tightly closed original container. Keep container in a cool, dry, well-ventilated area away from incompatibles such as strong oxidizers and acids.
Incompatibilities: Strong oxidizing agents, acids
Special Requirements: No smoking, eating, or drinking in storage or work area. Use non-sparking tools. Label all containers clearly.
Exposure Limits: No specific ACGIH, OSHA, or NIOSH limits established
Engineering Controls: Use mechanical ventilation or local exhaust to keep airborne levels below nuisance limits
Eye Protection: Chemical safety goggles
Skin Protection: Gloves of nitrile rubber or similar resistance, lab coat
Respiratory Protection: Use NIOSH-approved respirator if dust or vapors exceed exposure limits
Hygiene Measures: Wash hands after handling, avoid touching face during use
Physical State: Crystalline, solid powder
Color: White or off-white
Odor: Mild, characteristic
Molecular Weight: 337.57 g/mol
Melting Point: 105–110°C
Boiling Point: Not available (decomposes)
Solubility: Soluble in water and alcohols
Density: Approximately 1.03 g/cm³
pH (5% solution): 6–7
Flash Point: Not available, expected above 150°C
Autoignition Temperature: Not established
Chemical Stability: Stable under normal conditions of use and storage
Reactivity: Inert to most common laboratory reagents
Conditions to Avoid: Excessive heat, open flames, static discharge, moisture
Incompatible Materials: Strong oxidizers, strong acids
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, sulfur oxides
Polymerization: Will not occur
Potential Health Effects: May irritate skin, eyes, respiratory tract; ingestion can upset stomach
Acute Toxicity: Not expected to be highly toxic (no established LD50 values for this salt)
Chronic Toxicity: Not classified as carcinogen, mutagen, or reproductive toxin; long-term exposure data limited
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Symptoms: Redness, irritation, coughing, headache
Delayed Effects: No reliable data for chronic effects
Ecotoxicity: Harmful to aquatic organisms in large amounts; limited data on long-term aquatic or terrestrial toxicity
Persistence and Degradability: Not readily biodegradable, likely to persist in aquatic environments
Bioaccumulative Potential: Low, based on physical properties and structure
Mobility in Soil: Mobile in water, may leach in wet soils
Environmental Precautions: Prevent product from entering waterways, sewers, or soil
Waste Treatment: Dispose of as hazardous chemical waste; incinerate in permitted facility or use licensed chemical disposal contractor
Contaminated Packaging: Triple-rinse containers before discarding; follow local regulations
Regulatory Requirements: Comply with local, state, national, and international regulations regarding disposal
UN Number: Not regulated for transport
Proper Shipping Name: Tetrabutyl-Ammonium Methylsulfonate
Hazard Class: None
Packing Group: None
Special Precautions: Keep sealed and protected from damage, transport according to good practice
International Inventories: Consult national chemical inventories for status (REACH, TSCA, DSL, etc.)
Regulatory Status: Not controlled under US SARA, CERCLA, or California Proposition 65
Labeling Requirements: Comply with GHS, OSHA, and national workplace hazardous material standards
Other Regulations: Observe any state or local requirements for handling, storage, and disposal
