Product Name: 1-Hydroxyethyl-3-Methylimidazolium Tetrafluoroborate
Chemical Formula: C6H11BF4N2O
CAS Number: 684239-68-5
Synonyms: [HEMIm][BF4], 3-Methyl-1-(2-hydroxyethyl)imidazolium tetrafluoroborate
Recommended Use: Laboratory chemical, ionic liquid, industrial applications, solvent
Manufacturer Information: Reach out to supplier for emergency numbers, technical guidance, and clarification
Emergency Contact: Refer to local regulations, fire brigade or poison center for support during incidents
Hazard Classification: Skin corrosion/irritation (Category 2), Serious eye damage/eye irritation (Category 2), Specific target organ toxicity-single exposure (Category 3)
GHS Label Elements: Pictogram (Exclamation mark), Signal word (Warning), Hazard Statements (Causes skin and eye irritation, May cause respiratory irritation)
Precautionary Statements: Use with eye and face protection, avoid breathing vapor or mist, wash skin thoroughly after handling, use only in well-ventilated areas, store away from moisture
Routes of Exposure: Inhalation, skin contact, ingestion, eye exposure
Symptoms: Irritation of mucous membranes, reddening of skin or eyes, coughing, headache, nausea with large amount inhaled or ingested
Chemical Name: 1-Hydroxyethyl-3-Methylimidazolium Tetrafluoroborate
CAS Number: 684239-68-5
EC Number: 614-637-9
Concentration: 100% pure substance, unless diluted with specific solvents detailed by supplier
Other Ingredients: No significant impurities known to contribute to classification
Molecular Weight: 228.97 g/mol
Inhalation: Move affected person to fresh air, keep at rest, seek immediate medical advice for respiratory issues
Skin Contact: Remove contaminated clothing, rinse skin with soap and plenty of water, see a physician if irritation persists
Eye Contact: Rinse cautiously with lukewarm water for several minutes, remove contact lenses, continue rinsing, get medical attention if symptoms develop
Ingestion: Rinse mouth thoroughly, do not induce vomiting, seek immediate medical attention
Advice for Doctors: Treat symptomatically, monitor for delayed effects, provide respiratory support if required
Suitable Extinguishing Media: Dry chemical powder, foam, carbon dioxide, water spray
Hazardous Combustion Products: Hydrogen fluoride, boron oxides, carbon monoxide, carbon dioxide, toxic imidazole fumes
Special Protective Equipment: Self-contained breathing apparatus, chemical-resistant suit, full body protection
Fire Fighting Procedures: Approach from upwind, avoid inhaling vapors or decomposition products, cool containers with water if exposed to heat
Personal Precautions: Put on protective gloves, eye and face shields, avoid breathing mist or vapors, evacuate unnecessary personnel
Environmental Precautions: Prevent further leakage by containing spillage, avoid release to soil, surface water or drains
Methods for Clean-Up: Absorb with inert material such as sand or vermiculite, transfer to chemical waste containers, ventilate area, wash spill site after clean-up
Disposal: Follow official regulations for hazardous waste, use sealed containers for waste transport
Safe Handling: Minimize dust, vapor or mist generation, use only with proper ventilation, avoid direct contact with eyes and skin, keep away from food and drink
Storage Conditions: Store tightly closed in original containers, in a cool, dry, well-ventilated place, protected from moisture and incompatible substances
Incompatible Materials: Strong oxidizers, acids, alkalis, sources of ignition and moisture, halogenated compounds
Hygiene Measures: Wash hands after handling, do not eat, drink or smoke at work site, remove contaminated garments before entering common areas
Occupational Exposure Limits: No established exposure limit values available for this compound
Engineering Controls: Use local exhaust ventilation or process enclosures to reduce vapor and mist, maintain air concentrations below applicable standards
Personal Protective Equipment (PPE): Protective gloves (nitrile, neoprene), splash goggles, lab coat or chemical resistant clothing, face shield for splashing risk, use respirators with P2 filter for high vapor/mist levels
Environmental Controls: Implement spill control measures, use fume hoods for laboratory work, training personnel in emergency clean-up procedures
Appearance: Colorless to pale yellow liquid
Odor: Faint, slightly ammoniacal or imidazole odor
pH: Near neutral (measured as a 10% aqueous solution), but may be slightly acidic
Melting Point/Freezing Point: Approx. -70°C
Boiling Point/Range: Decomposes before boiling, thermal breakdown into hazardous gases above 200°C
Flash Point: Over 180°C (closed cup, estimate based on similar compounds)
Evaporation Rate: Negligible at ambient temperature
Flammability: Not classified as flammable but may support combustion at elevated temperature
Vapor Pressure: Very low at 20°C
Vapor Density: Not determined
Relative Density: 1.27 – 1.35 (20°C)
Solubility: Miscible with water, moderate to high solubility in polar organic solvents
Partition Coefficient (n-octanol/water): Not determined
Decomposition Temperature: >200°C
Viscosity: Higher than water, exact value depends on temperature and purity
Chemical Stability: Stable under recommended storage conditions, decomposes slowly with exposure to air or moisture
Reactivity: Reacts with strong oxidizing agents, halogenating reagents, and strong bases
Hazardous Decomposition Products: Hydrogen fluoride, boron trifluoride, carbon oxides, toxic imidazole derivatives
Polymerization: Does not occur
Conditions to Avoid: Moisture, high temperature, open flames, incompatible chemicals
Hazardous Reactions: Possibility of corrosive or toxic gas formation if mixed with strong acids or bases
Acute Toxicity: No data for LD50 in humans, based on component data may cause mild to moderate irritation on acute exposure
Routes of Exposure: Skin absorption, inhalation, ingestion, eye contact
Skin Corrosion/Irritation: Causes redness, rash, discomfort on prolonged skin contact
Serious Eye Damage/Irritation: Causes tearing, pain, possible conjunctivitis
Respiratory Sensitization: Possible irritation, coughing, sore throat on inhalation
Ingestion: May irritate mouth, esophagus and gastrointestinal tract if swallowed
Chronic Effects: Repeated exposure could cause dermatitis or respiratory discomfort
Carcinogenicity/Mutagenicity/Reproductive Toxicity: No long-term animal studies or epidemiological data available
Other Effects: May aggravate existing medical conditions such as asthma, respiratory conditions
Symptoms of Overexposure: Irritation, headache, nausea, dizziness if exposed to significant vapor or ingestion
Toxicity to Aquatic Life: Product may be moderately toxic to aquatic life, avoid discharge into waterways
Persistence and Degradability: Poorly biodegradable, ionic liquid nature may confer resistance to breakdown in environment
Bioaccumulation: Low potential for bioaccumulation based on molecular structure, but no empirical data
Mobility in Soil: High solubility in water suggests moderate to high mobility in soil
Other Adverse Effects: Potential disruption to microbial populations in soil or water, limited information on chronic ecological hazards
Waste Disposal Methods: Dispose as hazardous chemical waste, use certified disposal contractor, incineration recommended if practical
Container Disposal: Triple rinse containers before disposal, use puncture-proof containers for transport to regulated landfill or incinerator
Precautions for Disposal: Do not discharge to drains, water bodies or environment, comply with local, state, national waste regulations
Contaminated Packaging: Treat as chemical waste, do not reuse for any other purpose
UN Number: Not classified as a dangerous good under transport regulations (based on current knowledge)
Proper Shipping Name: 1-Hydroxyethyl-3-Methylimidazolium Tetrafluoroborate
Transport Hazard Class: Not regulated
Packing Group: Not regulated
Marine Pollutant: Not designated, but best practice is to avoid uncontrolled release
Special Precautions: Ensure containers are upright, leak-proof and compatible with product, separate from food or sensitive goods
International Inventories: Consult EINECS, TSCA, DSL or local chemical inventories for inclusion status
REACH Status: May require notification or authorization for some uses in Europe
SARA Title III (USA): Not listed as extremely hazardous substance
California Proposition 65: Not listed
Labeling: GHS compliant, warning for irritancy, general chemical safety
Right-to-Know Regulations: Follow federal, state and local chemical safety, storage and labeling rules
Workplace Control: Report hazardous chemical under OSHA Hazard Communication Standard where applicable
