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Common Name: 2-Methylpyridine
Chemical Formula: C6H7N
Synonyms: Alpha-picoline, 2-picoline
CAS Number: 109-06-8
Odor: Strong fishy, unpleasant
Appearance: Clear, colorless to light yellow liquid
Usage Examples: Industrial chemical intermediate, solvent for chemical manufacturing
GHS Classification: Flammable liquid, Acute toxicity, Eye and skin irritation
Signal Word: Danger
Main Health Risks: Causes skin and eye irritation, toxic if inhaled or swallowed, may cause damage to organs through prolonged or repeated exposure
Environmental Hazards: Harmful to aquatic life with long-lasting effects
Symptoms of Exposure: Headache, nausea, dizziness, possible damage to liver or kidneys after long-term exposure
Fire Hazard: Vapors can ignite, liquid catches fire easily
Chemical Name: 2-Methylpyridine
Purity: Usually exceeds 99% in commercial stocks
Other Constituents: Water (minor), trace stabilizers depending on supplier
Molecular Weight: 93.13 g/mol
Relevant Impurities: Possible traces of closely related methylpyridine isomers
Inhalation: Move to fresh air immediately, seek medical advice if breathing is difficult, provide artificial respiration if not breathing
Skin Contact: Wash with plenty of water and mild soap, remove contaminated clothing, seek medical attention for persistent irritation
Eye Contact: Flush eyes gently with water for at least 15 minutes, hold eyelids open, get prompt medical help
Ingestion: Rinse mouth, do not induce vomiting, call a poison center or physician
Important Note: Symptoms may be delayed, watch for changes in consciousness or breathing long after initial exposure
Extinguishing Media: Use dry chemical, foam, or carbon dioxide, avoid water jets which may spread fire
Special Hazards: Vapors form explosive mixtures with air, toxic fumes of nitrogen oxides released on burning
Protective Equipment: Firefighters need self-contained breathing apparatus and full protective gear
Additional Risks: Containers under fire may burst or explode from pressure buildup, move containers from fire area if it can be done safely
Personal Precautions: Wear proper chemical splash goggles, gloves, and a respirator suited for organic vapors
Evacuate area: Limit access to trained personnel, ventilate area thoroughly
Spill Cleanup: Absorb with sand or inert material, place in waste container for disposal
Additional Notes: Prevent spills from entering drains or water systems, wash contaminated zone with water only after chemical is removed
Handling: Work only in well-ventilated spaces, avoid breathing vapors, prevent eye and skin contact
Storage: Store in tightly sealed containers, keep away from heat, sparks, and sources of ignition
Incompatibles: Keep away from strong oxidizers, acids, and bases
Storage Temperatures: Normal room temperatures in a dedicated chemical storage area
Engineering Controls: Use chemical fume hoods or local exhaust
Personal Protective Equipment: Chemical safety goggles, flame-resistant gloves, long-sleeved clothing, organic vapor respirator if ventilation is poor
Occupational Exposure Limits: Consult workplace regulations, many agencies set time-weighted average limits (TWA) in low ppm range
Hygiene Measures: Wash hands before eating or drinking, routinely check gloves and PPE for damage
Appearance: Clear, colorless to light yellow liquid
Odor Threshold: Noticeable at low concentrations
Boiling Point: Approximately 128°C
Melting Point: -7°C
Density: Roughly 0.95 g/cm³ at 20°C
Vapor Pressure: About 17 mmHg at 25°C
Flash Point: Around 40°C
Solubility: Miscible with water and most organic solvents
Flammability: Easily flammable in both liquid and vapor forms
Viscosity: Low, typical for organic liquids
Chemical Stability: Stable under routine storage and handling
Reactivity: Reacts strongly with oxidizing agents, acids, and bases
Hazardous Reactions: May form hazardous products under fire conditions, hazardous polymerization doesn't occur
Decomposition Products: Nitrogen oxides, carbon monoxide, carbon dioxide released during fire or strong decomposition
Routes of Exposure: Inhalation, skin contact, ingestion, eye contact
Acute Effects: Causes irritation of eyes and skin, may affect nervous system with symptoms like headaches, dizziness, nausea
Chronic Effects: Prolonged or repeated exposure may damage liver and kidneys
Carcinogenicity: Not listed as a confirmed human carcinogen, long-term data is limited
Animal Studies: Most data comes from animal testing, showing adverse effects at high doses
Human Data: Accidental poisoning incidents document neurological and gastrointestinal symptoms
Aquatic Toxicity: Harmful to aquatic organisms, possible bioaccumulation
Persistence: Breaks down in water and soil but not rapidly
Mobility: Moves easily in the environment, leaches through soil
Special Concerns: Spillages can travel far in waterways, potential to contaminate groundwater near manufacturing sites
Waste Disposal: Collect for disposal as hazardous chemical waste
Incineration: Prefer burning in approved chemical incinerator with afterburner and scrubber
Regulations: Comply with local, regional, and national requirements for hazardous waste
Container Disposal: Triple-rinse containers before recycling or disposal, do not reuse for commercial or household purposes
Environmental Risk: Avoid disposal down drains or in regular trash due to high risk to water and soil health
UN Number: UN 2313
Shipping Classification: Flammable liquid
Packaging Group: Group III (for lower risk substances, but still regulated)
Special Cautions: Keep well sealed, away from heat or ignition during transit, clear hazard labels required on containers
Transport Incidents: Any accident or leak during transport requires immediate professional hazmat response
Occupational Regulations: Subject to workplace safety rules in most countries, check for national hazardous substance notifications
Environmental Laws: Listed on inventories for hazardous chemicals, regulated by agencies overseeing water, air, and land protection
Import/Export: Declarations and restrictions may apply for international trade
Other Guidance: Safety protocols demanded by workplace standards, chemical manufacturers, and environmental specialists worldwide
