Product Name: N-Methylimidazolium Chloride
Chemical Family: Ionic liquid, organic salt
Synonyms: 1-Methylimidazolium chloride; NMI-Cl
Manufacturer: Refer to supplier or production site contact information
Recommended Uses: Solvent, catalyst, ionic liquid for synthesis or electrochemistry
Contact in Emergency: Local poison control center or company safety officer
CAS Number: 14822-12-1
Classification: Acute Toxicity Oral Category 4, Serious Eye Irritation Category 2, Skin Irritation Category 2
Signal Word: Warning
Hazard Pictograms: Exclamation mark
Hazard Statements: Harmful if swallowed. Causes skin irritation. Causes serious eye irritation.
Precautionary Statements: Avoid breathing dust or vapors. Wear gloves and eye/face protection. Wash exposed skin thoroughly after handling. Do not eat, drink, or smoke during use. If in eyes, rinse cautiously with water for at least 15 minutes and seek medical attention. If ingested, seek medical advice immediately.
Potential Health Effects: May cause irritation to skin, eyes, and respiratory tract. Ingestion may provoke gastrointestinal distress, including nausea, vomiting, and diarrhea.
Chemical Name: N-Methylimidazolium Chloride
Common Name: 1-Methylimidazolium chloride
CAS Number: 14822-12-1
Concentration: >98% by weight
Impurities or Additives: Trace solvents possible from synthesis, less than 2%
Inhalation: Move person to fresh air. Get medical advice if symptoms persist. Give oxygen if difficulty breathing.
Skin Contact: Wash exposed skin with soap and large amounts of water. Remove contaminated clothing. Seek medical attention if itching, redness, or rash appears.
Eye Contact: Rinse eyes immediately for at least 15 minutes with plenty of clean running water. Remove contact lenses if present and easy to do.
Ingestion: Do not induce vomiting. Rinse mouth and drink water if person is conscious. Seek medical help promptly.
Most Important Symptoms and Effects: Pain, redness, burns, blisters, stomach pains, vomiting. Prompt action reduces impacts.
Extinguishing Media: Use water spray, carbon dioxide, alcohol-resistant foam, or dry chemical.
Not to Use: Avoid high-pressure water streams which could spread chemical.
Special Hazards: Heating produces toxic smoke and corrosive gases including hydrochloric acid and nitrogen oxides.
Protective Equipment: Firefighters wear self-contained breathing apparatus and full protective suit.
Advice: Stay upwind. Remove containers if safe to do. Frothing may occur under fire conditions.
Personal Precautions: Wear suitable gloves, goggles, and protective clothing. Use adequate ventilation.
Environmental Precautions: Prevent from entering drains, sewers, watercourses, and soil.
Methods for Clean-Up: Collect spills with absorbent materials (sand, earth, vermiculite). Place in a closed container for disposal. Clean area thoroughly with water. Report significant releases to environmental agencies.
Handling: Avoid breathing dust and contact with skin or eyes. Use only in well-ventilated areas. Keep containers tightly closed.
Hygiene Measures: Wash hands thoroughly after handling. Remove contaminated clothing and wash before reuse.
Storage: Store in cool, dry, well-ventilated areas in corrosion-resistant containers. Keep away from food, acids, oxidizers, and bases. Protect from moisture and extreme heat. Segregate from reactive chemicals.
Exposure Limits: No occupational exposure limit assigned. Minimize exposure.
Engineering Controls: Use fume hood or local exhaust. Maintain eyewash stations and safety showers near work zone.
Personal Protective Equipment: Wear chemical goggles, gloves (nitrile or neoprene), lab coat or apron, and closed-toe shoes. In case of dust, use NIOSH-approved respirator. Wash exposed skin thoroughly.
Workplace Practices: Avoid eating, drinking, or smoking during use. Keep chemical containers clearly labeled and closed tightly.
Appearance: White to off-white crystalline solid or powder
Odor: Weak, faintly amine-like
pH (solution): Slightly acidic in water
Melting Point: 60-65 °C
Boiling Point: Decomposes before boiling
Flash Point: Not flammable under standard conditions
Vapor Pressure: Negligible at room temperature
Solubility: Soluble in water, alcohols
Density: ~1.3 g/cm³ at 25 °C
Partition Coefficient (Log Kow): Not determined
Chemical Stability: Stable under recommended storage conditions.
Conditions to Avoid: Strong heat, moisture, contact with strong oxidizers or acids.
Incompatible Materials: Strong oxidizing agents, bases, acetylides, alkali metals.
Hazardous Decomposition Products: Hydrogen chloride, methyl imidazole, nitrogen oxides, carbon oxides.
Polymerization: Will not occur under normal conditions.
Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact
Acute Effects: Oral: LD50 (rat): 150-300 mg/kg (estimated). May cause abdominal pain, dizziness, vomiting. Skin and eye exposure provokes irritation, pain, and redness. Inhalation may trigger coughing and respiratory irritation.
Chronic Effects: Prolonged or repeated exposure risks dermatitis or sensitization.
Carcinogenicity: Not classified as carcinogen by NTP, IARC, or OSHA.
Other Effects: Not mutagenic or teratogenic in available studies, but long-term impacts not fully studied.
Ecotoxicity: Moderate toxicity to aquatic organisms. No long-term studies but possible hazardous impact if released in bulk.
Persistence and Degradability: Ionic nature leads to persistence in water. Some biodegradation possible over time.
Bioaccumulation Potential: Low, due to water solubility.
Mobility in Soil: Expected to migrate in water, especially in moist environments.
Other Adverse Effects: Large spills could shift local pH and alter aquatic ecosystems.
Disposal Methods: Collect and deliver to approved chemical disposal facility. Do not pour into drains, water courses, or soil.
Contaminated Packaging: Rinse thoroughly before disposal as regulated waste. Observe all local, regional, and national regulations.
Special Instructions: Seek guidance from hazardous materials waste handler for bulk quantities or uncertainty.
UN Number: Not regulated as dangerous good under most transport codes.
Proper Shipping Name: N-Methylimidazolium Chloride
Transport Hazard Class: Not dangerous under ADR, IMDG, or IATA.
Packing Group: None assigned
Marine Pollutant: Not applicable, but avoid bulk discharge into water.
Special Transport Precautions: Seal containers tightly. Shield from moisture and mechanical shock. Separate from food products.
TSCA (US): Listed
REACH (EU): Pre-registered or substance-specific inquiry needed
Hazard Communication: Subject to worker right-to-know requirements
Other Regulations: Not on lists of known carcinogens or restricted substances
Label Elements: Signal word “Warning”. Pictogram: exclamation mark. Product name and company contact required by workplace safety laws.
Community Right-To-Know: Not listed as hazardous air pollutant, SARA title III section 313 chemicals.
State Specific Regulations: May differ; consult local environmental and health authorities for guidance.
