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Product Name: 1-Methyl-3-Butylimidazolium Chloride
Chemical Family: Imidazolium-based ionic liquid
SYNONYMS: BMIM Chloride
Appearance: Often comes as a solid or viscous liquid, color ranging from pale yellow to colorless, gives off a characteristic odor
Relevant Uses: Widely used in chemical synthesis, battery research, and as a solvent for biocatalysis
Hazard Classes: Irritant to skin and eyes, may cause respiratory discomfort if inhaled as dust or mist
Pictogram: Exclamation mark signifying warning for acute toxicity and irritant properties
Most Common Risks: Skin and eye irritation, possible impact on mucous membranes, aggravation in conditions with pre-existing skin sensitivities
Signal Word: Warning
Precautionary Statements: Always avoid dust or contact with eyes and skin; ingestion could provoke nausea or discomfort
Main Ingredient: 1-Methyl-3-Butylimidazolium Chloride
Chemical Formula: C8H15ClN2
CAS Number: 79917-90-1
Concentration: Typically available as pure or nearly pure substance, trace impurities may be present depending on supplier and storage conditions
Eye Contact: Rinse immediately with slow, gentle stream of water for 15 minutes; remove contact lenses if present
Skin Contact: Wash with soap and water, remove all contaminated clothing
Inhalation: Move to fresh air promptly, monitor respiratory function, and seek medical attention if cough or discomfort persists
Ingestion: Rinse mouth thoroughly with water; do not induce vomiting; seek doctor’s help if symptoms develop
General Advice: No matter the exposure, always use common sense and seek medical help for sustained symptoms
Extinguishing Agents: Water spray, dry chemical, foam, or CO2 foam work well, avoid direct water jet which can spread heated product
Specific Hazards: Decomposition produces irritating and potentially toxic gases like hydrogen chloride, nitrogen oxides, and carbon oxides
Protective Equipment: Wear self-contained breathing apparatus and protective firefighting clothing
Additional Points: Remove containers from danger zone if safe, always keep upwind to avoid inhalation of fumes
Personal Precautions: Evacuate unnecessary personnel, use gloves and chemical goggles
Environmental Protection: Prevent spillage from entering drains, sewers, or waterways
Cleanup Methods: Sweep up carefully, collecting in sealable containers, ventilate area, use absorbents for liquid spills
Safe Handling: Handle in well-ventilated place, minimize dust generation, avoid prolonged skin contact and breathing in fumes
Storage Conditions: Store in tightly sealed containers, keep away from direct sunlight or sources of heat, separate from strong oxidizers
Incompatibilities: Avoid contact with strong bases, oxidizing agents, and acids which could trigger hazardous reactions
Engineering Controls: Work in fume hood or well-ventilated rooms to minimize vapor and dust exposure
Eye/Face Protection: Safety goggles are necessary
Skin Protection: Gloves made from nitrile or neoprene, lab coats provide further barriers
Respiratory Protection: Dust masks if work generates fine particles; otherwise, standard laboratory handling procedures suffice under good ventilation
General Hygiene: Do not eat, drink, or smoke during work; wash hands thoroughly after use
Physical State: Typically solid at room temperature but can appear as viscous liquid depending on humidity
Color: Ranges from colorless to pale yellow
Odor: Slightly musty, not overwhelming
Melting Point: Often reported around 70–75°C in literature for pure samples
Boiling Point: Decomposes before boiling
Solubility: Highly soluble in water and many polar organic solvents
Density: Usually about 1.0–1.1 g/cm³
pH: Slightly acidic in water solution
Chemical Stability: Stable under normal laboratory conditions if kept dry and away from light
Hazardous Reactions: Comes apart when exposed to strong acids, bases, oxidizers
Decomposition Products: Steam or extreme temperatures break it into hydrogen chloride, nitrogen oxides, organic fragments
Conditions to Avoid: High temperatures, significant humidity, and open flames
Routes of Exposure: Eyes, skin, inhalation, ingesting
Acute Effects: Can lead to redness, itchy skin, sore throat or lungs if not handled using protection
Chronic Effects: Not much specific human data, but some ionic liquids have shown delayed tissue irritation on repeated contact
Sensitization: Allergic reactions have not been common but long exposure can make skin sensitive
Aquatic Toxicity: Imidazolium salts like this show moderate poisoning to aquatic life, especially at higher concentrations
Mobility: Soluble and can be carried into water systems if released improperly
Persistence: Ionic liquids can resist natural breakdown and remain in the environment longer than many organic solvents
Bioaccumulation: Not a major concern compared to heavy metals, but studies flag the need to keep waste away from open bodies of water or soil
Recommended Methods: Chemical waste incineration with flue gas scrubbing, never use landfill or household drains
Legal Requirements: Stick to local hazardous waste laws; improper dumping can lead to fines and ecosystem damage
Special Advice: Reuse and recycling options for ionic liquids are expanding in research, look into programs before deciding to incinerate
Regulatory Status: Typically not classified as dangerous goods for transport under many national regulations, but always check
Packaging: Leak-proof, properly labeled plastic or glass containers
Transport Precautions: Keep upright, in cool and dry environments, protect from jolting and accidental crushing
Occupational Exposure Limits: Usually not established specifically, but general workplace regulations for chemicals apply
Global Inventories: Appears on several national and regional chemical inventories
Worker Protection: Required training in chemical safety before handling
Community Right-To-Know: Some jurisdictions demand reporting of all hazardous substances stored or used, check your local rules
