Material Safety Data Sheet: N-Butylimidazolium Tosylate

Identification

Product Name: N-Butylimidazolium Tosylate
Chemical Family: Imidazolium Ionic Liquid
Synonyms: 1-Butyl-3-methylimidazolium p-toluenesulfonate
CAS Number: 410522-48-6
Recommended Use: Solvent, catalyst in organic synthesis, electrochemical applications
Supplier Contact Information: Manufacturer details supplied on request, or check reputable chemical suppliers' documentation
Emergency Contact Number: Refer to local regulations and supplier recommendations for full details

Hazard Identification

Classification: Eye irritant (Category 2), Skin irritant (Category 2), Acute toxicity (Oral, Category 4)
Label Elements: Signal Word: Warning; Hazard Statements: Causes skin and eye irritation, Harmful if swallowed
Pictograms: Exclamation mark (GHS07)
Precautionary Statements: Avoid breathing dust or fumes, avoid skin and eye contact, wash hands thoroughly after handling, wear protective eyewear, gloves, and clothing
Symptoms of Exposure: Redness or pain in eyes or on skin, upset stomach, allergic reactions possible in sensitive individuals

Composition / Information on Ingredients

Chemical Name: N-Butylimidazolium Tosylate
CAS Number: 410522-48-6
Concentration: 95-100%
Impurities/Note: Trace impurities typical for ionic liquid synthesis may include trace imidazolium salts, water, and unreacted starting materials

First Aid Measures

Inhalation: Remove to fresh air, keep comfortable, seek medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, wash affected area with soap and water for at least 15 minutes, seek medical advice if irritation develops
Eye Contact: Flush eyes immediately with plenty of water for at least 15 minutes, keep eyelids open, seek prompt medical attention
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical assistance
Most Important Symptoms/Effects: May cause moderate irritation of the skin, eyes, and mucous membranes, risk of nausea or headache after ingestion
Special Notes to Physician: Symptomatic treatment as required, no known antidote

Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, alcohol-resistant foam, carbon dioxide, dry chemical
Unsuitable Media: Avoid direct water stream for large fires as product may splatter
Hazardous Combustion Products: May emit toxic fumes of carbon oxides, nitrogen oxides, sulfur oxides during decomposition
Special Protective Equipment/Precautions: Firefighters should wear self-contained breathing apparatus and full protective gear
Fire/Explosion Hazard: Product is not classified as highly flammable but may burn at high temperatures
Specific Methods: Cool containers with water spray if exposed to heat or flames, move containers away from fire area if safe

Accidental Release Measures

Personal Precautions: Evacuate unnecessary personnel, use appropriate personal protective equipment including gloves, safety goggles, and chemical-resistant clothing
Environmental Precautions: Prevent further leakage or spillage if safe to do so, avoid release to environment, contain spill to prevent run-off into drains or waterways
Methods for Cleanup: Absorb spill with inert materials (sand, earth, vermiculite), collect in suitable, labeled containers for disposal, ventilate area and wash site after material pickup is complete
Emergency Procedures: Notify responsible authorities in event of a significant spill, follow local and national regulations for hazardous materials response

Handling and Storage

Safe Handling: Handle in well-ventilated areas, avoid inhalation or skin and eye contact, do not eat, drink, or smoke while using this product
Hygiene Measures: Wash hands and face after handling, remove contaminated clothing and equipment before leaving work area
Storage Conditions: Keep tightly closed in original container, store in a cool, dry, well-ventilated space, protect from moisture and incompatible materials such as strong oxidizers and acids
Incompatibilities: Strong acids, strong bases, oxidizing agents
Storage Life: Check supplier shelf life guidance, usually stable for several years if stored properly

Exposure Controls and Personal Protection

Control Parameters: No established occupational exposure limits for this compound
Engineering Controls: Use with adequate local exhaust ventilation to maintain exposure levels below recommended limits
Respiratory Protection: Use approved dust/mist respirator if airborne concentrations exceed recommended limits or during spills
Skin Protection: Wear appropriate chemical-resistant gloves (e.g. nitrile), long sleeves, protective lab coat or apron
Eye Protection: Safety goggles with side shields or full face shield
Other Protective Equipment: Emergency eyewash stations and safety showers should be available in the immediate area, good general ventilation strongly recommended

Physical and Chemical Properties

Appearance: White to off-white crystalline solid or powder
Odor: Faint, characteristic odor
Odor Threshold: Not determined
pH: No data available for aqueous solution
Melting Point/Freezing Point: 90-110°C (typical range, purity dependent)
Boiling Point/Range: Decomposes before boiling
Flash Point: >150°C (closed cup, typical for ionic liquids)
Evaporation Rate: Not volatile under ambient conditions
Flammability: Not classified as flammable
Vapor Pressure: Negligible at 20°C
Vapor Density: Not applicable
Solubility: Moderately soluble in water, miscible with many organic solvents
Auto-ignition Temperature: No data
Decomposition Temperature: Begins to decompose above 150°C
Relative Density: 1.2-1.3 g/cm³ (20°C)
Viscosity: High viscosity at room temperature, typical of ionic liquids

Stability and Reactivity

Chemical Stability: Stable under recommended storage and handling conditions
Thermal Decomposition: Decomposes at elevated temperatures releasing potentially hazardous gases
Reactivity: Generally unreactive under normal conditions, avoid contact with incompatible substances
Possibility of Hazardous Reactions: No dangerous reactions expected with proper handling; violent reaction may occur with strong oxidizers
Incompatible Materials: Strong oxidizing agents, strong acids, strong bases
Hazardous Decomposition Products: Carbon oxides, nitrogen oxides, sulfur oxides, and other toxic fumes if heated beyond decomposition temperature

Toxicological Information

Acute Toxicity: Oral LD50 (rat) estimated >500 mg/kg, harmful if swallowed; data may not be fully available for this specific compound but similar ionic liquids have shown moderate toxicity
Skin Corrosion/Irritation: May cause irritation or redness on prolonged or repeated contact
Serious Eye Damage/Irritation: Causes significant irritation, risk of redness, tearing, or temporary vision impairment
Respiratory or Skin Sensitization: No data on sensitization, although rare allergic reactions cannot be excluded
Carcinogenicity, Mutagenicity, Reproductive Toxicity: No available long-term studies, not listed as a carcinogen by IARC, NTP, OSHA
Possible Routes of Exposure: Inhalation, ingestion, skin and eye contact
Chronic Effects: No reliable data, chronic exposure not advised
Other Information: Effects may be potentiated by underlying health conditions or repeated exposure

Ecological Information

Ecotoxicity: Data limited, similar ionic liquids reported to have low-to-moderate toxicity to aquatic life; avoid direct release to environment
Persistence and Degradability: May persist in environment, degradation in water and soil slow without treatment
Bioaccumulation Potential: Not expected to bioaccumulate significantly; evidence for many ionic liquids suggests limited environmental mobility
Mobility in Soil: Low mobility, binds to soils and sediments
Other Adverse Effects: Runoff can cause local contamination, take care to prevent entry into waterways or sewage systems

Disposal Considerations

Waste Disposal Methods: Incineration preferred in accordance with local, regional, national, and international regulations; do not release to drains or natural waters
Container Disposal: Triple rinse empty containers, puncture and offer for recycling or disposal at an approved site
Hazardous Waste Status: May be classified as hazardous depending on state and national guidelines
Special Precautions: Follow all chemical disposal laws, use a licensed waste disposal company for bulk or contaminated waste

Transport Information

UN Number: Not regulated by major international guidelines for transport of dangerous goods
Proper Shipping Name: Not classified as hazardous for transport
Hazard Class: Non-hazardous
Packing Group: Not allocated
Special Transport Precautions: Package securely to prevent breakage, avoid release in transit
Environmental Hazards: Not a marine pollutant under standard regulatory definitions, but avoid accidental release

Regulatory Information

Inventories: Check regional chemical inventories (EINECS, TSCA, REACH, DSL, NDSL); consult supplier for up-to-date listing
OSHA/WHMIS Classification: Not specifically regulated, but handle as hazardous based on hazard assessment
SARA Title III/EPCRA: Not listed as a reportable substance
California Prop 65: Not currently listed
Other Applicable Regulations: Compliance required with all relevant workplace hazard communication standards and environmental safety regulations at local and national level