Product Name: 1-Ethyl-3-Methylimidazolium Hydrogen Sulfate
Chemical Formula: C6H11N2O4S
CAS Number: 409141-19-1
Synonyms: EMIM HSO4, 1-Ethyl-3-methylimidazolium bisulfate
Recommended Use: Solvent, catalyst, ionic liquid in chemical synthesis and research
Supplier Details: Supplier contact info, emergency phone number, and local office location
Emergency Overview: Clear liquid, faintly yellow tint, mild odor, non-volatile, used in lab and industrial applications
GHS Classification: Eye irritation (Category 2), Skin irritation (Category 2), Acute toxicity oral (Category 4), Acute aquatic toxicity (Category 3)
Hazard Statements: Causes skin and eye irritation, may cause digestive discomfort, toxic to aquatic life
Pictogram(s): Exclamation mark, Environment
Precautionary Statements: Avoid contact with skin and eyes, avoid breathing vapors, wash thoroughly after handling, do not release to untreated wastewater or natural waterways
Chemical Name: 1-Ethyl-3-Methylimidazolium Hydrogen Sulfate
Concentration: Over 99%
Other Ingredients: Not present above reportable levels
Impurities: Trace water and degradation products under improper storage; does not contain heavy metals or volatile organic compounds
General Advice: Remove contaminated clothing and shoes promptly
Inhalation: Move to fresh air, support breathing, seek medical attention if symptoms persist
Skin Contact: Rinse skin with running water for at least 15 minutes; use soap, do not rub vigorously
Eye Contact: Flush eyes thoroughly with plenty of water for several minutes holding eyelids open, seek medical attention if irritation persists
Ingestion: Rinse mouth, do not induce vomiting, give water if alert, seek immediate medical care if large amounts swallowed
Suitable Extinguishing Media: Foam, dry chemical powder, carbon dioxide
Unsuitable Media: High-pressure water jets
Specific Hazards: May produce sulfur oxides, nitrogen oxides, imidazole derivatives during decomposition
Protective Equipment: Self-contained breathing apparatus, full protective gear
Special Procedures: Remove containers from fire area if safe, use water spray to cool surfaces, prevent runoff into drains or water sources
Personal Precautions: Ventilate area, evacuate unnecessary personnel, wear appropriate PPE
Environmental Precautions: Prevent entry to sewers, surface water, or ground water
Clean Up Methods: Absorb with inert material (sand, vermiculite), collect for disposal, wash spill site after material pick-up is complete
Disposal: Dispose in accordance with local, regional, and national regulations pertaining to hazardous liquids
Handling: Work under fume hood, avoid splashing, do not breathe vapors, avoid prolonged or repeated contact
Storage Conditions: Store in tightly sealed container in cool, dry, well-ventilated area, away from direct sunlight and incompatible substances (bases, oxidizers)
Segregation: Do not store with strong acids, alkalis, or oxidizing agents
Technical Measures: Chemicals should be handled only by trained personnel, maintain good industrial hygiene practices
Exposure Limits: No specific occupational exposure limits established for this material
Engineering Controls: Chemical fume hood, eyewash station, safety shower, mechanical ventilation recommended
Respiratory Protection: Use chemical cartridge respirator if vapor concentration exceeds recommendations
Skin Protection: Chemical-resistant gloves (nitrile, neoprene), lab coat, closed footwear
Eye Protection: Chemical safety goggles, splash-proof face shield if significant splashing might occur
Hygiene Measures: Wash hands and any exposed skin thoroughly after handling, remove contaminated clothing before eating or drinking
Appearance: Clear, colorless to light yellow liquid
Odor: Faint, characteristic odor
pH: Acidic, typically between 1 and 2 (neat liquid)
Boiling Point: Decomposes before boiling, above 250°C
Melting Point: Less than -20°C
Flash Point: Data not available
Vapor Pressure: Negligible at room temperature
Solubility: Miscible with water and many organic solvents
Viscosity: High compared with water, increases at lower temperatures
Density: Around 1.25 g/cm³
Decomposition Temperature: Begins to break down above 200°C, may release irritating fumes
Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: Combustible, reacts with strong bases to liberate heat and toxic gases
Conditions to Avoid: Excessive heat, sources of ignition, incompatible materials
Incompatible Materials: Strong acids, strong bases, oxidizing materials
Hazardous Decomposition Products: Sulfur oxides, nitrogen oxides, carbon monoxide, carbon dioxide, imidazole derivatives under fire or thermal decomposition
Acute Toxicity: Low to moderate oral toxicity, data suggests LD50 above 500 mg/kg in rodents
Skin Corrosion/Irritation: Causes moderate skin irritation on prolonged contact
Serious Eye Damage/Irritation: May result in redness and pain, possible reversible damage
Respiratory Sensitization: No data indicating allergic potential from inhalation
Chronic Effects: No known long-term health effects from typical exposure; repeated contact might dry or crack skin
Carcinogenicity: Not listed by NTP, IARC, or OSHA
Other Effects: Ingestion can cause abdominal pain, nausea, diarrhea
Mutagenicity/Teratogenicity: No reliable data available
Aquatic Toxicity: Harmful to aquatic life based on available data, toxic to algae and invertebrates above certain concentrations
Persistence and Degradability: Expected to be slowly biodegradable in the environment
Bioaccumulative Potential: Low to moderate potential to accumulate in aquatic organisms
Mobility in Soil: Can move through soil and contaminate groundwater due to water solubility
Other Adverse Effects: Not expected to cause ozone depletion, global warming or photochemical ozone creation
Disposal Methods: Dispose at licensed chemical waste facility; do not pour down the drain or release directly to environment
Container Disposal: Rinse empty containers well, offer for recycling or disposal according to local requirements
Special Precautions: Avoid release to surface water, comply with local, state, and federal rules
Waste Codes: Assign codes in accordance with regional hazardous waste classification
UN Number: Not regulated under UN recommendations for transport of dangerous goods
Transport Hazard Class: Not classified as a hazardous material for transport by ADR, IMDG, IATA
Packing Group: Not assigned
Environmental Hazards: Avoid accidental release into water systems during shipping
Special Transport Precautions: Ship securely in sealed, labeled containers that prevent leaks or splashes, ensure vehicles are appropriately ventilated
OSHA Status: Not considered hazardous according to OSHA Hazard Communication Standard
TSCA Status: Listed in TSCA Inventory or exempt
SARA 313 Components: Contains no chemicals subject to SARA Title III Section 313 reporting
REACH Information: Registered or pre-registered under REACH as appropriate
Other Regulations: Not subject to California Proposition 65, not listed as a highly hazardous chemical by other major agencies
Workplace Classification: Use and storage allowed with proper safety and environmental controls in laboratory and industrial applications
