Chemical Name: 1-Vinyl-3-Methylimidazolium Acetate
Synonyms: 1-Vinyl-3-methylimidazolium ethanoate, VMAc
Product Number: VMI-Ac
CAS Number: 145261-75-4
Recommended Use: Solvent, ionic liquid applications, research
Supplier Contact Information: Name, address, phone number of manufacturer or supplier
Emergency Phone: Chemtrec or local emergency contact details
Classification: Eye irritation, Skin irritation, Acute toxicity (oral, dermal, inhalation), Reproductive toxicity
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may be harmful if swallowed or inhaled, suspected of damaging fertility or the unborn child
Pictograms: Exclamation mark, Health hazard
Precautionary Statements: Avoid breathing dust/fume/gas/mist/vapors/spray, wear protective gloves/eye protection/face protection, if in eyes rinse cautiously, if on skin wash with plenty of water
Chemical Identity: 1-Vinyl-3-Methylimidazolium Acetate
Molecular Formula: C8H12N2O2
Molecular Weight: 168.19 g/mol
Component: 1-Vinyl-3-Methylimidazolium Acetate, Purity >95%
Impurities: Residual solvents < 2%, water <1%
Percentage: 99% by weight (approximate)
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, hold eyelids open, seek medical advice
Skin Contact: Wash with plenty of soap and water, remove contaminated clothing, consult physician if irritation persists
Inhalation: Move person to fresh air, keep warm and at rest, get medical attention if symptoms develop
Ingestion: Rinse mouth with water, do not induce vomiting, seek advice from a physician
Important Symptoms: Skin redness, burning eye sensation, coughing, abdominal discomfort
Notes for Doctor: Symptomatic treatment, no specific antidote
Suitable Extinguishing Media: Water spray, carbon dioxide, dry chemical powder, foam
Unsuitable Media: No known incompatible extinguishing agents
Hazards from Combustion: May emit carbon oxides, nitrogen oxides, acetic acid vapors
Protective Equipment for Firefighters: Self-contained breathing apparatus, full protective clothing
Special Hazards Arising from Substance: Can produce toxic gases upon heating; containers may rupture under fire conditions
Fire Fighting Instructions: Use water spray to cool unopened containers, isolate area, prevent run-off to water sources
Personal Precautions: Wear chemical resistant gloves, protective goggles, suitable clothing, avoid inhalation of vapors/dust
Environmental Precautions: Do not allow product to enter drains, sewers, or watercourses, prevent further leakage, inform authorities if environmental contamination occurs
Methods for Clean-Up: Absorb with inert material (sand, earth), collect in suitable containers, wash spill site after material pick-up, ventilate area
Spill Handling: Ensure adequate ventilation, contain area, use non-sparking tools
Disposal: Dispose of as hazardous waste, follow local regulations
Handling: Use only in well-ventilated areas, minimize contact with skin and eyes, do not ingest, avoid breathing vapors or mists, wear protective gear, handle away from incompatible substances such as strong oxidizers and acids
Storage: Store tightly closed in a cool, dry, and well-ventilated area, keep away from direct sunlight and sources of ignition, separate from food and beverages, store in compatible containers made of glass or high-density polyethylene
Specific Storage Conditions: Temperature between 2–8°C preferred for long-term stability, avoid extreme temperature fluctuations, keep containers upright to prevent leaks
Storage Class: Chemical storage, compatible with organic liquids
Incompatibilities: Strong oxidizing/reducing agents, nitric acid, peroxides
Control Parameters: No occupational exposure limits established for this compound, monitor for acetic acid by-products in air
Engineering Controls: Use process enclosures, local exhaust ventilation, or other engineering controls to keep airborne concentrations below recommended exposure limits
Personal Protective Equipment: Chemical-resistant gloves (nitrile, neoprene), safety goggles with side-shields, lab coat or apron, appropriate respiratory protection during high exposure/exceeding control limits
Hygiene Measures: Do not eat, drink, or smoke while using, wash hands after handling, remove contaminated clothing and clean before reuse
Environmental Control: Use closed systems or ventilation to minimize release to environment, proper disposal systems in place
Appearance: Clear to pale yellow liquid
Odor: Mild vinegar-like, slightly pungent
Odor Threshold: Not established
pH: 6–7 (15% solution in water)
Melting Point/Freezing Point: -60°C
Boiling Point/Range: Decomposes above 200°C
Flash Point: >110°C (closed cup)
Evaporation Rate: Not determined
Flammability: Not highly flammable
Vapor Pressure: <0.1 mmHg at 25°C
Vapor Density: Not established
Relative Density: 1.10–1.14 g/cm³ at 25°C
Solubility: Soluble in water, alcohols
Partition Coefficient (n-octanol/water): Not determined
Auto-ignition Temperature: Not established
Decomposition Temperature: >200°C
Viscosity: 40–100 cP at 25°C
Chemical Stability: Stable under standard storage and handling conditions
Reactivity: Non-reactive under recommended use, will not polymerize
Conditions to Avoid: Elevated temperatures, freezing, exposure to moisture, contamination with incompatible materials
Incompatible Materials: Acids, strong oxidizers, reducing agents, certain metals
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, acetic acid fumes
Hazardous Reactions: None expected under normal conditions
Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: LD50 (oral, rat) > 2000 mg/kg (estimated)
Skin Corrosion/Irritation: Causes skin irritation
Serious Eye Damage/Irritation: Causes serious eye irritation
Respiratory or Skin Sensitization: Not known to cause sensitization
Germ Cell Mutagenicity: Data not conclusive
Carcinogenicity: No data available to indicate carcinogenic potential
Reproductive Toxicity: Suspected of causing harm to unborn child due to imidazolium structure analogues
Specific Target Organ Toxicity: Repeated exposure may cause organ damage based on animal studies of related ionic liquids
Aspiration Hazard: Low based on physical properties
Symptoms of Exposure: Irritation to respiratory tract, headache, dizziness, abdominal pain, dermatitis in skin contact areas
Ecotoxicity: Toxic to aquatic life, LC50 (fish, 96 h): 10–50 mg/L, EC50 (daphnia, 48 h): 20–30 mg/L
Persistence and Degradability: Not readily biodegradable, may persist in environment
Bioaccumulative Potential: Potential for low to moderate bioaccumulation according to log Kow of structurally similar compounds
Mobility in Soil: Expected to have high mobility due to water solubility, may leach through soil
Other Adverse Effects: Ionic liquids may cause long-term effects on aquatic organisms, avoid release to water bodies
Degradation Products: Imidazole derivatives, organic acids
Environmental Precautions: Prevent product from entering drains, riverways, or soil
Waste Treatment Methods: Dispose of in accordance with all federal, state, and local environmental regulations
Product Disposal: Treat as hazardous organic liquid waste, incineration recommended by licensed waste disposal contractor
Contaminated Packaging: Rinse containers, drain thoroughly, send to authorized waste facility
Disposal Precautions: Wear suitable protective equipment, avoid releases into environment
Recycling Information: Not suitable for recycling, ensure destruction by thermal methods if possible
UN Number: Not regulated under most transport regulations
Proper Shipping Name: Non-hazardous for air, land, and sea transport
Transport Hazard Class: Not classified
Packing Group: Not assigned
Environmental Hazards: None classified, but prevent major releases
Special Precautions for User: Ensure containers are tightly sealed and upright, handle gently to avoid rupture
Transport in Bulk: Follow local and international regulations for chemical bulk transport, avoid contamination with foodstuffs
Safety, Health and Environmental Regulations: Subject to chemical inventory reporting in some jurisdictions (such as TSCA, EINECS, REACH)
OSHA Hazard Communication: Meets criteria for hazardous chemical
SARA Title III: Not listed as extremely hazardous
California Proposition 65: Not listed
WHMIS Classification (Canada): D2B (Toxic material causing other toxic effects)
Other Country-Specific Regulations: Check national chemical registration status, some countries require prior notification or special labeling
Labeling: Manufacturer or supplier must update SDS if regulatory status changes
