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Chemical Name: 3-Methylpyridine, also known as beta-Picoline
Chemical Formula: C6H7N
Appearance: Clear to pale yellow liquid, strong, unpleasant odor that tends to stick around even at low concentrations
Hazard Class: Flammable liquid, irritating to eyes, respiratory system, and skin, harmful if swallowed or absorbed through the skin
Main Risks: Vapor can cause headache, nausea, and dizziness; direct contact in liquid form can burn skin and eyes, sometimes leading to longer recovery periods; chronic exposure gives headaches or damage to the nervous system
Symbols: Flammable, Toxic, Irritant
Component: 3-Methylpyridine
Concentration: Best practices see it in high concentrations for industrial work, often above 95%
CAS Number: 108-99-6
Inhalation: Move affected person outdoors, give fresh air; if drowsy or having trouble breathing, make an emergency call
Skin Contact: Wash skin with soap and water soon after exposure, remove contaminated clothing
Eye Contact: Rinse with water for minutes, holding eyelids open, look for medical attention fast if pain or vision changes
Ingestion: Never give anything by mouth if unconscious; drink water if safe, call poison control for professional instructions
Suitable Extinguishing Media: Dry chemical, carbon dioxide, foam; avoid spraying water straight at the liquid since it spreads the hazard
Special Hazards: Emits toxic gases under fire, including nitrogen oxides; heat can raise pressure and burst closed containers
Protective Equipment: Firefighters wear full gear, including self-contained breathing apparatus
Spill Response: Ventilate space, eliminate ignition sources; small spills soak up with inert material like sand; put in container for safe disposal
Precautions: Work in ventilated areas with personal protection; avoid creating vapors and prevent entry to drains or waterways
Handling: Avoid breathing vapor or mist, handle in ventilated spot; keep containers closed, use non-sparking tools
Storage: Store in cool, dry spot—keep away from ignition sources and incompatible chemicals like strong oxidizers or acids
Exposure Limits: Some work safety groups recommend keeping airborne exposure levels as low as possible, ideally under 2 ppm over an eight-hour shift
Personal Protection: Wear chemical-resistant gloves, safety goggles, and clothing; use respirator if ventilation falls short
Engineering Controls: Install exhaust ventilation, especially with open liquid; keep workspaces clean, change protective gear after direct splash or spill
Boiling Point: About 144°C
Melting Point: Roughly -17°C
Flash Point: Near 39°C
Density: Sits around 0.95 to 0.97 g/cm³
Solubility: Dissolves easily in water and organic solvents with a strong smell that fills a room quickly
Vapor Density: Heavier than air, which means vapors can crawl along floors or into low spaces
Chemical Stability: Remains stable in most storage situations away from open flames and incompatible chemicals
Reactivity: Reacts with strong oxidizers or acids, heating up or causing releases or fumes
Hazardous Decomposition Products: Burning produces things like nitrogen oxides and choking smoke, so keeping the chemical contained is top priority
Acute Effects: Breathing high concentrations causes nausea, dizziness, or headaches; skin and eyes get irritated on contact; ingestion can harm the digestive tract
Chronic Exposure: Continuous exposure has ties to liver, kidney, and nervous system harm, especially without proper precautions
Routes of Exposure: Inhalation, skin absorption, eye contact, ingestion
Aquatic Toxicity: Toxic to aquatic life, sometimes lasting for days in rivers or lakes
Persistence: Strong enough in the environment that improper dumping means build-up and longer-term harm; breaks down slowly in air or water
Bioaccumulation: Does not tend to build up in living organisms as fast as other chemicals, but runoff still risks stream and pond health
Disposal Methods: Send waste to licensed hazardous facility; do not pour in drains or throw with household trash
Packaging: Triple-rinse and destroy containers before landfill or recycling; label clearly to avoid mix-ups or reuse
UN Number: 2313 for international transport
Hazard Class: Flammable liquid category
Packing Group: II (medium hazard)
Shipping Precautions: Proper labels, tightly sealed containers, avoid shipping with food or incompatible materials; secure so nothing tips during haul
Regulations: Listed under several workplace safety rules as a hazardous chemical; handled under tight guidelines for worker exposure and environment safety
Workplace Safety: Employers must train and provide right gear, plus regular air monitoring
Environmental Law: Treated as pollutant under many regional and global water standards; no legal dumping without permits
