Product Name: N-Hexylimidazolium Hydrogen Sulfate
Chemical Formula: C9H19N2SO4
Synonyms: 1-Hexyl-3-methylimidazolium hydrogen sulfate
Recommended Uses: Ionic liquid in catalysis, solvent applications, research chemicals
Manufacturer: Provide company and contact information for traceability and support
Emergency Contact: List a 24-hour emergency response phone number for immediate guidance in case of incidents involving the chemical
CAS Number: 262297-13-2
Use Restrictions: Reserved for industrial and laboratory use only, not intended for pharmaceutical, food, or agricultural processing
GHS Classification: Classified as an irritant for skin and eyes, may cause respiratory irritation, potential environmental hazard
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory tract irritation, harmful to aquatic life with long-lasting effects
Pictograms: Exclamation mark symbol for irritants, environmental hazard symbol
Precautionary Statements: Avoid breathing dust or fumes, wash hands and face thoroughly after handling, use only outdoors or in a well-ventilated area, avoid release to the environment, wear protective gloves, clothing, and eye protection
Chemical Identity: N-Hexylimidazolium Hydrogen Sulfate
Purity: Greater than 95%
Impurities: Minor traces of imidazolium compounds and hexyl derivatives may be present, generally less than 1%
Stabilizers or Additives: None declared, substance provided as-is without preservatives
Relevant Decomposition Products: None during normal use, potential sulfur oxides and nitrogen compounds upon decomposition above 200°C
General Advise: Remove victim from exposure area to fresh air, consult a physician if symptoms occur
Inhalation: Move affected person to fresh air, seek medical attention for persistent symptoms such as coughing, wheezing, or shortness of breath
Skin Contact: Remove contaminated clothing, wash skin with soap and plenty of water for at least 15 minutes, seek medical help if irritation persists
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, lifting upper and lower eyelids, seek professional medical advice
Ingestion: Rinse mouth, do not induce vomiting, give water to drink, and obtain immediate medical attention
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, water fog, or alcohol-resistant foam
Unsuitable Media: Direct water jet may spread material
Specific Hazards: May produce sulfur oxides, nitrogen oxides, carbon monoxide, and carbon dioxide when exposed to fire
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, full protective clothing to protect against chemical vapors and decomposition products
Advice for Firefighters: Approach fire from upwind to avoid hazardous fumes and decomposition products, use water spray to keep containers cool
Personal Precautions: Evacuate unprotected personnel, ventilate the area, use appropriate protective clothing, gloves, eye and face protection
Environmental Precautions: Prevent spillage from entering drains, surface water, or soil, inform relevant authorities in case of significant spill
Clean-up Methods: Contain spillage with inert absorbent materials (sand, earth, vermiculite), collect and place in sealed, labeled containers for disposal, wash residual traces with plenty of water, ventilate area after clean-up
Reference to Other Sections: Use information from handling, exposure controls, and disposal sections
Handling Notes: Use in well-ventilated areas, avoid inhalation, ingestion, or contact with skin and eyes, never eat, drink, or smoke while handling chemicals, clean up spills immediately
Technical Measures: Use closed systems or local exhaust ventilation, ground and bond containers if transferring liquids
Storage Conditions: Store in tightly closed, clearly labeled containers, keep at cool and dry location away from incompatible substances such as strong oxidizers and acids, avoid direct sunlight and extreme temperatures
Storage Incompatibilities: Do not store in containers made of reactive metals, avoid conditions that promote corrosion
Special Storage Requirements: Maintain temperature between 2°C and 8°C for optimal stability, provide secondary containment for bulk storage
Exposure Limits: Occupational exposure limits not established for this material, general threshold limit values (TLVs) for similar imidazolium salts suggest minimizing chronic exposure
Engineering Controls: Install local exhaust ventilation or work in a fume hood to reduce airborne concentrations
Eye/Face Protection: Wear chemical safety goggles or face shield compliant with EN 166 or NIOSH standards
Hand Protection: Wear suitable protective gloves, such as nitrile or neoprene, inspect for punctures or tears before use
Body Protection: Wear laboratory coats or chemical protective coveralls, avoid synthetic fabrics that can absorb solvents
Respiratory Protection: Use a respirator with appropriate chemical cartridges in areas of insufficient ventilation
Hygiene Measures: Wash hands thoroughly after handling, remove contaminated clothing, and clean before reuse, do not eat, drink, or smoke around the substance
Appearance: Colorless to pale yellow viscous liquid
Odor: Mild characteristic odor
Odor Threshold: Not established
pH Value: Approximately 1-2 (1% solution in water)
Melting Point: Below room temperature
Boiling Point: Decomposes above 200°C before boiling
Flash Point: Above 150°C (closed cup estimate)
Evaporation Rate: Negligible at ambient temperature
Solubility: Miscible with water and polar solvents, limited solubility in hydrocarbons
Vapor Pressure: Extremely low at 20°C
Relative Density: 1.16 – 1.21 g/cm³ at 25°C
Viscosity: Moderate to high
Partition Coefficient (log Kow): Not measured
Auto-Ignition Temperature: Over 350°C
Explosive Properties: Not explosive
Oxidizing Properties: Does not possess oxidizing properties
Chemical Stability: Stable under normal conditions of handling, storage, and use
Conditions to Avoid: Excess heat, open flames, exposure to moisture, strong ultraviolet sources
Materials to Avoid: Strong oxidizing agents, acids, alkalis, and reactive metals like sodium or potassium
Hazardous Decomposition Products: Thermal decomposition may release toxic gases such as sulfur oxides, nitrogen oxides, imidazole derivatives, and hydrocarbons
Polymerization: No known hazardous polymerization
Incompatible Container Materials: Metals with low corrosion resistance, avoid soft plastics
Acute Toxicity: Specific LD50 values not available, oral and dermal toxicity expected to be low to moderate based on similar compounds
Skin Corrosion/Irritation: May cause moderate skin irritation upon prolonged or repeated exposure
Serious Eye Damage/Irritation: May cause severe eye irritation, redness, pain, and potential short-term vision disturbances
Respiratory Sensitization: May irritate mucous membranes; symptoms include coughing and sore throat
Germ Cell Mutagenicity: Not classified for mutagenic effects due to lack of conclusive data
Carcinogenicity: Not listed as a known or suspected carcinogen by IARC, NTP, or OSHA
Reproductive Toxicity: No conclusive animal data on reproductive effects
Specific Target Organ Toxicity: No evidence for organ-specific toxicity with ordinary lab use
Symptoms of Exposure: Skin redness, itching, burning, eye watering, sore throat, nausea if ingested
Aquatic Toxicity: Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment, chronic exposure can contribute to bioaccumulation
Persistence and Degradability: Limited biodegradability, persists in soils and sediments, slow breakdown in aquatic systems
Bioaccumulative Potential: Expected to have low to moderate potential for bioaccumulation, based on structure
Mobility in Soil: Moderately mobile, soluble in water may enable migration in soils
Other Adverse Effects: Not classified for ozone layer depletion or global warming potential
Precautions: Prevent release into waterways, soils, drains, or unused large volumes as this can introduce toxicity into the food web
Waste Disposal Methods: Incinerate under controlled conditions in a chemical incinerator equipped with an afterburner and scrubber, avoid landfill or wastewater discharge
Container Disposal: Triple rinse containers before disposal, puncture and dispose of according to local, state, and federal regulations, do not reuse containers for other purposes
Special Precautions: Classify waste as hazardous based on local guidelines, consult with regulatory bodies for disposal advice
Physical/Chemical Properties Impacting Disposal: High solubility in water necessitates careful water treatment
Recycling Possibilities: No significant recycling potential for this compound
UN Number: Not classified under specific UN category, consult national transport requirements
Transport Hazard Class: Not regulated as a dangerous good for transport by road, air, or sea in most jurisdictions
Packing Group: Not assigned
Potential Transport Hazards: Risk of leaks or spills in transit, label packages clearly and ensure secure closure
Marine Pollutant: Caution regarding aquatic toxicity, avoid transport in bulk on ships where chemical could contact water
Special Transport Precautions: Use chemical-resistant secondary containment, avoid mechanical shock or excessive vibration that could cause container failure
TSCA Inventory Status: Not listed on US Toxic Substances Control Act (TSCA) Inventory
ECHA REACH Registration: Not registered, used primarily for R&D applications under exemption
OSHA Hazards: Classified as hazardous based on skin and eye irritation; ensure compliance with workplace safety requirements
SARA Title III: Not subject to reporting requirements as an extremely hazardous substance
State Regulations: Vary by location, consult with state environmental and occupational health agencies
Chemical Safety Assessment: Not conducted for low volume, specialty chemical
Labeling Requirements: Conform to OSHA Hazard Communication Standard, GHS standards, and local regulatory frameworks
Other National/International Regulations: Consult local chemical authority for restrictions or control under import/export rules
Workplace Exposure Standards: Follow all applicable guidelines for chemical hygiene, worker notification, and hazard communication
