Product Name: N-Octylimidazolium Tosylate
Chemical Formula: C16H24N2O3S
Synonyms: 1-Octyl-3-methylimidazolium tosylate
CAS Number: 408981-43-5
Recommended Use: Laboratory research, ionic liquids, solvent, catalysis
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GHS Classification: Eye Irritation, Skin Irritation, Specific Target Organ Toxicity (Single Exposure), Aquatic Toxicity
Pictograms: Exclamation mark, Environment
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, harmful to aquatic life, may cause respiratory irritation
Precautionary Statements: Avoid breathing dust, wash hands thoroughly after handling, use only outdoors or in well-ventilated area, avoid release to the environment, wear protective gloves/eye protection/face protection
Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Target Organs: Eyes, skin, respiratory system
Chemical Name: N-Octylimidazolium Tosylate
CAS Number: 408981-43-5
Concentration: ≥98% (pure, non-formulated)
Impurities: Minor byproducts such as sodium sulfate, unreacted methylimidazole, and trace solvents (usually below 1%)
Inhalation: Remove victim to fresh air, keep at rest in a comfortable position, seek medical attention if symptoms develop or persist
Skin Contact: Remove contaminated clothing, rinse skin with plenty of water for at least 15 minutes, seek medical advice if skin irritation occurs
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, get medical attention if eye irritation persists
Ingestion: Do not induce vomiting, rinse mouth with water, seek immediate medical advice
Most Important Symptoms and Effects: Irritation to eyes and skin, potential for respiratory discomfort, gastrointestinal distress if swallowed
Notes for Physicians: Treat symptomatically, monitor for respiratory or allergic reactions
Suitable Extinguishing Media: Dry chemical, carbon dioxide, water spray, alcohol-resistant foam
Specific Hazards Arising: May release irritating or toxic fumes such as nitrogen oxides, sulfur oxides, carbon monoxide, hydrocarbons under fire conditions
Protective Equipment for Firefighters: Wear self-contained breathing apparatus and full protective gear
Advice: Move containers away from fire area if safe to do so, cool fire-exposed containers with water spray
Personal Precautions: Use personal protective equipment such as gloves, goggles, laboratory coat; avoid contact with skin, eyes, and clothing; ventilate area well
Environmental Precautions: Avoid runoff into natural waterways or drains, contain spill to prevent environmental contamination
Methods for Cleaning Up: Absorb liquid with inert material such as sand or vermiculite, sweep up and place in suitable container for disposal, clean spill area thoroughly with plenty of water, ventilate
Additional Advice: Dispose of in accordance with local regulations, avoid inhaling vapors or dust which may result from clean-up
Handling: Handle in a well-ventilated area, avoid breathing vapors or dust, avoid prolonged or repeated skin contact, use appropriate protective equipment, wash hands after handling
Storage: Store in tightly closed containers, keep in a cool, dry, and well-ventilated area, protect from moisture and direct sunlight, separate from foodstuffs or incompatible substances
Incompatible Materials: Strong oxidizers, acids, bases, reducing agents
Other Considerations: Label containers clearly, keep away from sources of ignition, ensure secondary containment for large volumes
Engineering Controls: Work in fume hood or with local exhaust ventilation to reduce exposure, use enclosed systems where possible
Respiratory Protection: Use NIOSH-approved respirators for organic vapors or particulate if ventilation is inadequate
Skin Protection: Chemical-resistant gloves (nitrile or neoprene), lab coat or coveralls
Eye Protection: Safety goggles or face shield
Hygiene Measures: Wash hands and face before breaks and after handling, do not eat or drink while using this chemical
Exposure Limits: No established occupational exposure limits reported for this specific chemical
Physical State: Viscous liquid or hygroscopic solid (depending on ambient humidity and temperature)
Color: Pale yellow to colorless
Odor: Mild, slightly unpleasant
Melting Point: Approximately 30°C
Boiling Point: Decomposes before boiling
Flash Point: >110°C (closed cup)
Solubility: Water-soluble, miscible with polar organic solvents such as methanol, ethanol, DMSO
Density: Around 1.1–1.2 g/cm³ (20°C)
Vapor Pressure: Negligible at room temperature
pH (1% solution): 4.5–6.0
Viscosity: High at room temperature
Partition Coefficient (n-Octanol/Water): Not determined
Decomposition Temperature: >200°C
Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts with strong oxidizers and acids
Hazardous Reactions: May form hazardous gases upon decomposition or contact with incompatible materials
Hazardous Decomposition Products: Sulfur oxides, nitrogen oxides, carbon monoxide, toluene vapor
Conditions to Avoid: Excess heat, flames, sparks, moisture, incompatible substances
Acute Toxicity: Oral LD50 (rat): >2000 mg/kg, no data for inhalation or dermal available, likely to cause moderate irritation at high doses
Skin Corrosion/Irritation: Causes irritation, potential for allergic reactions in sensitive individuals
Serious Eye Damage/Irritation: Causes eye irritation
Respiratory Sensitization: May cause respiratory irritation if dusts or vapors are inhaled
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No data available, avoid unnecessary exposure
Specific Target Organ Toxicity (Single Exposure): Respiratory system
Chronic Effects: Prolonged or repeated exposure may cause dermatitis or exacerbate pre-existing skin conditions
Ecotoxicity: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment
Persistence and Degradability: Limited biodegradability expected, ionic liquids tend to resist rapid breakdown
Bioaccumulative Potential: Not expected to bioaccumulate based on available information, long alkyl side chains may increase environmental persistence
Mobility in Soil: High solubility in water, potential for migration in moist soils
Other Adverse Effects: Avoid direct release to environment, small spills can contribute to cumulative toxicity in waterways
Recommended Disposal Methods: Dispose of material and containers in accordance with local, regional, and national regulations; incineration or chemical landfill preferred
Contaminated Packaging: Containers should be triple-rinsed and rendered unusable before disposal
Other Disposal Recommendations: Do not dispose of product, waste, or rinsate to surface waters, drains, or sewers; contact an approved waste disposal contractor
UN Number: Not regulated for road (ADR/RID), sea (IMDG), or air (ICAO/IATA) transport
Proper Shipping Name: Not classified as hazardous for transport
Transport Hazard Class: None assigned
Packing Group: None assigned
Environmental Hazards: May harm aquatic environment, avoid leakage during transport
Special Precautions: Prevent container rupture, keep upright and secure to avoid spillage, mark package clearly during transit
US TSCA Inventory: Not listed
EU REACH Status: Registration or notification may be required for import, intermediate use may be exempt
OSHA HCS Classification: Classified as hazardous
Other Regulatory Considerations: Subject to workplace safety and environmental disposal laws in most countries, check national and regional requirements for use, handling, import/export, and disposal
Label Elements: GHS pictograms, hazard statements, and appropriate precautionary measures must appear on container label
