Product Name: 1-Ethyl-3-Methylimidazolium Ethylsulfate
Chemical Formula: C8H16N2O4S
Chemical Family: Imidazolium-based ionic liquid
CAS Number: 342573-75-5
EC Number: 609-552-9
Synonyms: EMIM ES, EMIM Ethyl Sulfate
Recommended Use: Solvent, catalysis, electrochemistry, specialty applications
Supplier Information: Refer to vendor details, technical support contact, 24-hour emergency line
Hazard Classification: Eye irritation (Category 2), Skin irritation (Category 2), Specific target organ toxicity – single exposure (Category 3)
Pictograms: Exclamation mark
Signal Word: Warning
Hazard Statements: Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation on inhalation.
Precautionary Statements: Avoid breathing dust or vapor. Wash skin thoroughly after handling. Use only in well-ventilated areas. Wear protective gloves and eye protection.
Potential Health Effects: Prolonged or repeated exposure can dry out skin and eyes. Direct contact may trigger redness, stinging, discomfort. Fumes can irritate airways.
Chemical Identity: 1-Ethyl-3-Methylimidazolium Ethylsulfate
Purity: ≥ 98%
Impurities: Trace synthesis byproducts and moisture possible, but no major hazardous impurities above reportable thresholds
Ingredient Breakdown: Main component 1-Ethyl-3-Methylimidazolium Ethylsulfate (100%); no stabilizers or additives
Inhalation: Move exposed person to fresh air right away. Support breathing if breathing seems difficult, artificial respiration if not breathing. Seek immediate medical attention.
Skin Contact: Remove contaminated clothing. Rinse gently and thoroughly with water for at least 15 minutes. Watch for redness or rash. Get prompt medical help if symptoms linger.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do. Seek prompt medical attention for persistent irritation.
Ingestion: Rinse mouth. Never induce vomiting unless directed by medical personnel. If symptoms show up, get immediate medical attention. In all cases, keep affected person warm and calm.
Suitable Extinguishing Media: Use dry chemical, carbon dioxide, water spray, or alcohol-resistant foam.
Special Hazards: Product itself is not highly flammable. At high temperatures, decomposition may generate irritating fumes such as nitrogen oxides, sulfur oxides, and carbon oxides.
Protective Equipment for Firefighters: Wear full protective clothing including self-contained breathing apparatus (SCBA). Avoid inhaling combustion products.
Specific Firefighting Procedures: Cool surrounding containers with water spray. Prevent runoff from entering drains or waterways.
Personal Precautions: Wear gloves, goggles, and protective clothing. Remove all sources of ignition from spill area.
Environmental Precautions: Stop further leakage if possible. Prevent entry into drains, sewers, or waterways. Notify local authorities in case of large spills.
Methods for Cleaning Up: Absorb liquid with inert material such as sand or vermiculite. Sweep up and place in a suitable waste container. Wash spill area with plenty of water. Dispose of contaminated cleaning materials properly.
Handling: Work with proper ventilation. Avoid breathing vapors or mists. Wear appropriate personal protective equipment. Never eat, drink, or smoke in working areas.
Storage: Store in a cool, dry, well-ventilated area, away from incompatible materials like strong oxidizers. Keep container tightly closed and labeled. Avoid exposure to light, moisture, and heat sources.
Occupational Exposure Limits: No specific exposure limits established for 1-Ethyl-3-Methylimidazolium Ethylsulfate. General workplace limits for chemical substances apply.
Engineering Controls: Fume hood or exhaust ventilation recommended during handling.
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), splash-proof goggles or face shield, lab coat or apron.
Respiratory Protection: If airborne concentrations risk being high, use appropriate NIOSH/MSHA certified respirators.
Hygiene Measures: Wash hands thoroughly after contact. Change out contaminated clothing and wash before reuse.
Appearance: Colorless to pale yellow liquid
Odor: Slight, characteristic odor
Melting Point: About -10°C
Boiling Point: Decomposes before boiling
Solubility: Miscible with water and some organic solvents
Density: Approximately 1.2–1.3 g/cm³ at 20°C
Vapor Pressure: Negligible at ambient conditions
pH: Neutral to slightly acidic (5–7 in aqueous solution)
Viscosity: Moderately viscous
Flash Point: Above 100°C
Partition Coefficient (n-octanol/water): Not available
Decomposition Temperature: May release toxic vapors above 200°C
Chemical Stability: Stable under recommended storage and handling conditions.
Reactivity: Not highly reactive under normal conditions.
Conditions to Avoid: Exposure to heat, strong light, moisture, strong oxidizers.
Hazardous Decomposition Products: Nitrogen oxides, sulfur oxides, carbon oxides, imidazole fragments.
Incompatible Materials: Strong oxidizing agents, strong acids and bases, moisture.
Routes of Exposure: Absorption through skin, inhalation, ingestion, eye contact
Acute Effects: Eye and skin irritation, possible headache or drowsiness if vapors inhaled
Chronic Effects: Data limited, long-term health impacts not well studied
LD50/LC50: Oral and dermal LD50 values not well established, generally regarded as moderate toxicity based on related compounds
Symptoms: Burning, redness, stinging of eyes and skin, respiratory discomfort
Sensitization: No human data on sensitization, low likelihood based on structure-activity
Carcinogenicity/Mutagenicity: No evidence of carcinogenic or mutagenic effects based on available data
Other Data: Handle with caution due to limited toxicity studies
Eco-Toxicity: Limited studies indicate moderate toxicity to aquatic species, including daphnia and algae
Persistence and Degradability: Partial biodegradation in soil and water, but ionic liquids can persist depending on environmental conditions
Bioaccumulation: Data not fully available, low bioaccumulation potential expected
Mobility in Soil: Can migrate with water due to high solubility
Precautions: Avoid large scale releases to environment, waterways, or soil. Comply with local regulations for discharge and disposal
Waste Treatment Methods: Dispose by licensed chemical disposal company.
Product Disposal: Do not pour into drains or natural water sources. Treat as hazardous chemical waste.
Container Disposal: Triple rinse containers. Offer intact container to authorized waste handling facilities.
Special Precautions: Check all local, regional, national, and international laws before disposal. Do not attempt incineration unless facility is equipped to handle toxic byproducts.
UN Number: Not classified under UN Dangerous Goods Code
Proper Shipping Name: 1-Ethyl-3-Methylimidazolium Ethylsulfate
Transport Hazard Class: Not regulated as hazardous for transport
Packing Group: Not assigned
Marine Pollutant: Not listed as marine pollutant under IMDG code
Special Transport Precautions: Use sealed, upright packaging. Prevent leaks and spills during transit. Document any special conditions on shipping paperwork.
TSCA Status: Not listed on TSCA inventory
REACH Registration: Subject to applicable European chemical regulations
SARA Title III: Not listed as hazardous under SARA 302/313
OSHA Classification: Irritant
DSL/NDSL (Canada): Not listed
Other Country Regulations: Must comply with local chemical safety laws. Verify requirements by jurisdiction.
Labeling: Product safety labeling should match GHS requirements, hazard statements and appropriate pictograms included.
