Product Name: 1-Butylsulfonic-3-Methylimidazolium Hydrogensulfate
Chemical Formula: C8H16N2O4S2
Synonyms: BSMIm HSO4, 1-butyl-3-methylimidazolium butylsulfonate-hydrogensulfate
Recommended Use: Laboratory reagent, ionic liquid, solvent, catalyst
Supplier: Contact chemical provider
Emergency Contact: Reach local poison control or fire services for incidents
Hazard Classification: Causes skin irritation, serious eye irritation, may cause respiratory irritation; not flammable under normal conditions
Label Elements: Signal word: Warning; pictograms indicate skin and eye irritant; hazard statements: H315, H319, H335
Precautionary Statements: Wash hands after use; avoid inhaling; wear gloves, protective clothing, eye protection
Health Hazards: Eye, respiratory, and skin irritant; prolonged exposure may worsen symptoms
Environmental Hazards: Harmful to aquatic life; avoid uncontrolled release to drains or environment
Chemical Name: 1-Butylsulfonic-3-Methylimidazolium Hydrogensulfate
CAS Number: 874808-56-9
Concentration: > 95% (by weight)
Impurities: Water (<1%), potential trace impurities depending on synthesis route
General: Remove from exposure; contact emergency services if serious
Inhalation: Move to fresh air; keep individual comfortable; seek medical advice for persistent symptoms
Skin Contact: Wash with soap and water for several minutes; remove contaminated clothing
Eye Contact: Rinse gently with water for at least 15 minutes; remove contact lenses if present
Ingestion: Rinse mouth; do not induce vomiting; seek medical help
Symptoms: Redness, pain, watering of eyes, rash, or coughing
Suitable Extinguishing Media: Use water spray, foam, dry chemical, or carbon dioxide
Specific Hazards: Avoid inhaling combustion fumes (may release sulfur oxides, nitrogen oxides, carbon oxides)
Protective Equipment: Full protective gear and self-contained breathing apparatus
Advice for Firefighters: Cool containers with water if exposed to fire; avoid runoff to waterways
Personal Precautions: Wear protective gloves, clothing, goggles, and a mask
Environmental Precautions: Prevent spillage from reaching drains, soil, or water sources
Cleanup Methods: Absorb with inert material (sand, absorbent pad); collect and dispose in closed containers
Ventilation: Open windows or use fans to ventilate area; avoid breathing vapors or dust
Notification: Report significant spills to relevant regulatory bodies
Handling: Use only with adequate ventilation; avoid contact with skin and eyes; do not eat, drink, or smoke during use
Storage Conditions: Store in tightly closed containers; keep in a well-ventilated, dry, and cool place
Incompatibilities: Keep away from strong bases and oxidizers; separate from acids and reactive metals
Safe Procedures: Employ secondary containment to minimize accidental release; label containers clearly
Exposure Limits: Not established for this compound
Engineering Controls: Use local exhaust ventilation or fume hood
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, long-sleeved lab coat
Respiratory Protection: Use a NIOSH-approved respirator if mist, vapor, or dust occurs
Hygiene Measures: Wash thoroughly after handling; avoid touching face while handling
Appearance: Clear to yellowish liquid or viscous oil
Odor: Mild sulfurous or slightly pungent
Odor Threshold: Not available
pH: Acidic (pH < 2 in solution)
Melting Point: About 20-30 °C
Boiling Point: Decomposes before boiling
Flash Point: > 100 °C
Evaporation Rate: Negligible
Flammability: Not easily flammable
Vapor Pressure: Low
Solubility: Soluble in water, ethanol, other polar solvents
Partition Coefficient: Not available
Viscosity: High (varies with temperature)
Density: 1.2-1.4 g/cm³
Chemical Stability: Stable under recommended conditions; stable at room temperature
Reactivity: Can react with strong bases, oxidizers
Conditions to Avoid: High temperatures, moisture, contact with incompatible chemicals
Hazardous Decomposition Products: Sulfur oxides, carbon oxides, nitrogen compounds upon strong heating or fire
Polymerization: No hazardous polymerization expected
Routes of Exposure: Inhalation, skin, eyes, ingestion
Acute Toxicity: Limited study data; similar compounds show mild to moderate irritation
Skin Corrosion/Irritation: Causes redness and discomfort on contact
Eye Damage/Irritation: Causes watering, stinging, risk of damage with direct exposure
Respiratory Sensitization: Can provoke coughing or throat discomfort if inhaled
Chronic Effects: Prolonged exposure may worsen skin and eye irritation; no long-term studies
Carcinogenicity: Not listed by IARC, NTP, or OSHA as a carcinogen
Mutagenicity: No evidence from related compounds
Target Organs: Eyes, skin, mucous membranes
Ecotoxicity: Moderately toxic to aquatic organisms in concentrated forms
Persistence and Degradability: Breaks down slowly in the environment
Bioaccumulative Potential: Low; unlikely to accumulate in living organisms
Mobility in Soil: May leach to groundwater if released in large quantities
Other Adverse Effects: Do not release undiluted material to the environment; document and control waste generation
Product Disposal: DDispose in accordance with national, regional and local regulations for hazardous chemical waste
Container Disposal: Triple rinse, puncture, and send to chemical waste collection; do not reuse for food or drink
Recommendation: Use an approved chemical disposal firm; landfilling not recommended if incineration is possible
Avoid: Discharge to sewer, storm drains, or natural waterways
UN Number: Not regulated for most international and domestic shipment
Proper Shipping Name: Not classified as dangerous for transport in small quantities
Transport Hazard Class: Not assigned
Packing Group: Not applicable
Special Precautions: Transport in sealed, upright containers to prevent leakage; ensure clear labeling and secure containment
Marine Pollutant: Not designated as a marine pollutant
TSCA Inventory: This chemical may not be listed
REACH Registration: Consult supplier for REACH status in Europe
OSHA Hazard Classification: Considered hazardous due to irritation potential
SARA Title III: Not listed as a reportable substance
Labeling Requirements: GHS pictograms and warnings; include contact details on product label
Other Regulations: Follow local, regional, and federal chemical safety requirements; safety program and training for users are critical
