Product Name: 1-Octyl-3-Methylimidazolium Iodide
Chemical Formula: C12H23IN2
Synonyms: OMIM Iodide, Ionic Liquid
CAS Number: 39927-76-3
Recommended Use: Laboratory chemical, research applications, synthesis
Manufacturer Contact: Obtain via chemical supplier information
Emergency Contact: Chemical safety emergency hotline (local, national, or institutional standard)
Restrictions on Use: Not for drug, food, or household use; for professional handling only
GHS Classification: Acute Toxicity (Oral) Category 4, Eye Irritation Category 2A, Skin Irritation Category 2
Signal Word: Warning
Hazard Statements: Harmful if swallowed; Causes skin irritation; Causes serious eye irritation
Pictograms: Exclamation mark
Precautionary Statements: Avoid contact with eyes, skin, clothing; Do not eat, drink, or smoke while using; Wash hands thoroughly after handling; Wear protective gloves and eye/face protection
Potential Health Effects: Inhalation can irritate respiratory tract. Swallowing may lead to gastrointestinal discomfort. Contact with skin or eyes causes visible irritation.
Chemical Name: 1-Octyl-3-Methylimidazolium Iodide
Concentration: 98–100%
CAS Number: 39927-76-3
Impurities/Additives: Minimal to none; High-purity grade unless noted by supplier
Molecular Structure: Long alkyl chain imidazolium cation, halide anion
Eye Contact: Immediately flush with plenty of water for at least 15 minutes, lifting eyelids often; seek prompt medical advice if irritation persists
Skin Contact: Remove contaminated clothing; rinse affected area with soap and water for at least 15 minutes; seek attention if rash or irritation develops
Inhalation: Move person to fresh air; seek medical attention if symptoms like coughing or shortness of breath emerge
Ingestion: Rinse mouth; do not induce vomiting; seek prompt medical advice; do not give anything by mouth to an unconscious person
Most Important Symptoms: Eye, skin, or upper respiratory irritation; gastrointestinal distress if ingested
Immediate/Special Treatment: Medical supervision for persistent symptoms; treat symptomatically
Suitable Extinguishing Media: Water spray, dry chemical, carbon dioxide, alcohol-resistant foam
Unsuitable Extinguishing Media: High-pressure water streams can spread fire
Specific Hazards: Emits toxic fumes of hydrogen iodide, nitrogen oxides, carbon oxides under fire conditions
Protective Equipment: Firefighters use self-contained breathing apparatus and full protective gear
Special Precautions: Move containers from fire area if safe; cool with water spray; avoid inhalation of combustion products; prevent contaminated runoff from entering drains
Personal Precautions: Absorb spills with inert material (e.g., sand, diatomaceous earth); avoid raising dust; ventilate area; keep unprotected personnel away
Protective Equipment: Wear safety goggles, chemical-resistant gloves, protective clothing; use suitable respiratory protection in poor ventilation
Environmental Precautions: Prevent entry into sewers and waterways; contain spill to smallest area possible
Cleanup Methods: Collect and transfer waste to labeled container for disposal according to legal requirements; decontaminate area with detergent and water
Precautions for Safe Handling: Keep container tightly closed; avoid inhalation and contact with skin, eyes, and clothing; handle in a chemical fume hood or well-ventilated area; wash hands after use
Conditions for Safe Storage: Store in tightly sealed original containers; keep away from incompatible materials such as strong oxidizing agents; protect from moisture and light
Shelf Life: Stable for typical laboratory storage periods under recommended conditions
Incompatibilities: Avoid strong acids, oxidizers, and bases
Engineering Controls: Work within fume hood or use local exhaust ventilation; keep eyewash stations and safety showers available
Occupational Exposure Limits: Not established for this substance; follow standards for nuisance dust where appropriate
Eye Protection: Chemical splash-proof goggles or face shield
Skin Protection: Chemical-resistant gloves (nitrile, neoprene); lab coats, protective sleeves
Respiratory Protection: NIOSH-approved respirator if exposure limits might be exceeded or during cleanup of large spills
General Hygiene: Keep food and drink away from work area; wash hands and forearms thoroughly after handling; launder work clothes regularly
Appearance: White to off-white crystalline solid
Odor: Faint, not distinctive
Melting Point: 45–55°C
Boiling Point: Decomposes before boiling
Density: About 1.2 g/cm³
Solubility: Readily soluble in water and organic solvents
pH (aqueous solution): Neutral to slightly basic
Vapor Pressure: Negligible at ambient temperatures
Partition Coefficient (n-octanol/water): Moderate, data available in literature for ionic liquids
Flash Point: > 150°C (closed cup, typical ionic liquid)
Decomposition Temperature: > 200°C (releases toxic gases)
Chemical Stability: Stable under normal laboratory conditions and storage
Conditions to Avoid: Elevated temperatures, prolonged exposure to light, humidity, open flames
Incompatible Materials: Strong oxidizers, reducing agents, acids, and bases
Hazardous Decomposition Products: Carbon oxides, nitrogen oxides, hydrogen iodide, alkyl iodide vapors
Polymerization: Does not polymerize under normal conditions
Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Toxicity: LD50 (oral, rat) estimated range of 500–2000 mg/kg; may cause irritation at exposure sites
Chronic Effects: Repeated exposure can lead to skin dryness or cracking; prolonged/high-level contact could pose organ effects based on available data for similar substances
Sensitization: Not expected to cause sensitization; insufficient evidence for allergenic effects
Carcinogenicity: No classification available (not listed by IARC, NTP, or OSHA)
Reproductive Toxicity: No specific data, caution recommended
Symptoms: Irritation, nausea, headaches, coughing if inhaled, abdominal pain after ingestion
Additional Data: Information for similar imidazolium salts referenced in safety literature
Aquatic Toxicity: Moderately toxic to aquatic organisms; data on imidazolium-based ionic liquids indicate EC50 values to daphnia/microalgae in the low mg/L range
Persistence and Degradability: Limited biodegradability; ionic liquids tend to persist in aquatic systems
Bioaccumulation Potential: Moderate risk based on partition coefficient; full long-term potential not well studied
Mobility in Soil: Can leach through soil with runoff, especially if spilled onto ground
Other Adverse Effects: Precautionary measures important to avoid large-scale release to waterways
Waste Disposal Methods: Dispose of as hazardous laboratory waste; do not release to environment; prefer incineration with chemical scrubbers
Contaminated Packaging: Treat as hazardous; rinse and dispose of according to local chemical waste regulations
Regulatory Requirements: Follow all country, state, and local environmental disposal regulations
Recommended Disposal: Use licensed hazardous waste contractor
UN Number: Not assigned for this compound
UN Proper Shipping Name: Not classified on the UN dangerous goods list
Transport Hazard Classes: Not regulated as dangerous goods for most modes of transport
Packing Group: Not applicable
Environmental Hazards: Avoid large spills during transport which may impact surface waters
Special Precautions: Use leak-proof containers; clearly label packages; prevent temperature extremes in transit
US TSCA: Check inventory status; new substances require notification
EU REACH: Notified or registered as intermediate or research substance
WHMIS Canada: Not classified under existing listings
OSHA Status: Not specifically listed; use general chemical handling standards
SARA Title III: Not regulated
Other International: Refer to country-specific chemical control regulations, e.g., AICS Australia, ENCS Japan, DSL Canada
Labeling Requirements: Chemical name, hazard symbol, precautionary wording, supplier information
Additional Legal Notes: Compliance with laboratory and industrial hygiene standards; consult safety officer for site-specific guidance
