Material Safety Data Sheet: 3-Methylpiperidine

1. Identification

Product Name: 3-Methylpiperidine
Chemical Formula: C6H13N
Chemical Family: Alkylpiperidine
CAS Number: 626-58-4
Synonyms: N-Methylpiperidine, Trimethylenemethylamine
Intended Use: Intermediate in organic synthesis, corrosion inhibitor, specialty solvent
Supplier: [Insert supplier details]
Contact Number for Emergencies: [Insert 24-hour emergency phone number]
Recommended Restrictions: Use only for industrial and laboratory purposes, not suitable for food, drug, or cosmetic usage

2. Hazard Identification

GHS Classification: Flammable liquid (Category 2), Acute toxicity (oral, Category 3), Skin corrosion (Category 1B), Eye damage (Category 1), Specific target organ toxicity—single exposure (Category 3)
Signal Word: Danger
Hazard Statements: Highly flammable, toxic if swallowed, causes severe skin burns and eye damage, harmful to respiratory system
Pictograms: Flame, Skull and Crossbones, Corrosion, Exclamation Mark
Precautionary Statements: Avoid breathing vapors, keep away from ignition sources, wear protective gloves, eye and face protection, wash thoroughly after handling
Other Hazards: Releases toxic fumes when burned, may cause respiratory irritation

3. Composition / Information on Ingredients

Chemical: 3-Methylpiperidine
Concentration: ≥98%
Impurities/Other Components: No significant impurities that contribute to hazard classification
Molecular Weight: 99.18 g/mol
Physical Form: Liquid (under normal temperature and pressure)

4. First Aid Measures

Inhalation: Move exposed person to fresh air, keep comfortable and warm, seek immediate medical attention if symptoms persist
Skin Contact: Remove contaminated clothing, rinse affected area with soap and plenty of water for at least 15 minutes, seek medical attention
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, get immediate medical help
Ingestion: Do not induce vomiting, rinse mouth carefully, give water if person is conscious, call poison control or doctor without delay
Most Important Symptoms/Effects: Burning pain, redness, severe irritation, respiratory distress, nausea, headache, loss of consciousness
Note to Physician: Treat symptomatically, monitor vital signs, possible delayed pulmonary edema

5. Fire-Fighting Measures

Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical, carbon dioxide
Unsuitable Extinguishing Media: Direct water jet can spread the fire
Special Hazards: Vapors may form explosive mixtures with air, combustion yields toxic gases including nitrogen oxides and carbon monoxide
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, full protective gear
Fire Fighting Instructions: Approach from upwind, remove containers from fire zone if safe, cool tanks with water spray, avoid inhaling fumes
Additional Hazards: Containers may explode when heated due to pressure build-up

6. Accidental Release Measures

Personal Precautions: Evacuate area, keep unauthorized personnel away, ventilate area, use chemical goggles, protective gloves, chemical-resistant clothing, use approved respirator
Environmental Precautions: Prevent entry into sewers, drains, watercourses, soil
Cleanup Methods: Absorb spills with sand, earth, or non-combustible absorbent, place in chemical waste container, clean area with detergent and water, ventilate
Other Considerations: Notify authorities if large releases enter environment, decontaminate equipment after cleanup, dispose materials following local regulations

7. Handling and Storage

Handling: Use only in well-ventilated areas, avoid inhalation, prevent contact with eyes and skin, keep away from open flames, hot surfaces, and sparks, ground and bond containers during transfer, avoid creating aerosols, don’t eat, drink, or smoke while handling
Storage: Keep tightly closed in original container, store in cool, dry, fireproof area, protect from sunlight and moisture, segregate from oxidizers, acids, and incompatible chemicals, ensure access to emergency shower and eye wash station

8. Exposure Controls and Personal Protection

Exposure Limits: No established OSHA, ACGIH, or NIOSH values for 3-Methylpiperidine, handle as a hazardous chemical
Engineering Controls: Use local exhaust ventilation, chemical fume hood, explosion-proof equipment, eye wash and safety shower in work area
Respiratory Protection: Use NIOSH/MSHA approved respirator for organic vapor/mist if exposure exceeds limits
Eye Protection: Chemical goggles or face shield
Hand Protection: Impermeable gloves of nitrile or butyl rubber
Skin Protection: Chemical-resistant clothing, apron, boots
Hygiene Measures: Remove contaminated clothing, wash hands thoroughly after handling, don’t consume food or drink in work area

9. Physical and Chemical Properties

Appearance: Clear, colorless to pale yellow liquid
Odor: Amine, strong, unpleasant
Odor Threshold: Not established
pH: Alkaline
Melting Point/Freezing Point: -66°C
Boiling Point: 135°C
Flash Point: 21°C (closed cup)
Evaporation Rate: Not determined
Flammability: Highly flammable
Upper/Lower Flammability or Explosive Limits: 1.8% (lower), 10.2% (upper)
Vapor Pressure: 25 hPa at 20°C
Vapor Density: Heavier than air
Relative Density: 0.82 g/cm³
Solubility: Miscible with water, soluble in most organic solvents
Partition Coefficient (n-octanol/water): Not available
Autoignition Temperature: 306°C
Decomposition Temperature: Not available
Viscosity: Not determined

10. Stability and Reactivity

Chemical Stability: Stable under recommended storage conditions
Possibility of Hazardous Reactions: Risk of violent reaction with acids, oxidizing agents, and halogens
Conditions to Avoid: Exposure to heat, flames, sparks, incompatible materials, air, moisture, and direct sunlight
Incompatible Materials: Acids, strong oxidizers, acid chlorides, acid anhydrides
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, irritating fumes

11. Toxicological Information

Acute Toxicity: Oral LD50 (rat): ~360 mg/kg, see supplier SDS for details
Inhalation: Irritating / toxic at low concentrations, may cause cough, sore throat, dizziness, headache, nausea
Skin Corrosion/Irritation: Causes severe burns, dermatitis
Eye Damage/Irritation: Causes serious, potentially irreversible damage
Respiratory Sensitization: Not classified, but strong irritant
Skin Sensitization: No data but structurally related amines may sensitize
Carcinogenicity: No evidence or classification as a carcinogen
Mutagenicity: No data reported
Reproductive Toxicity: No relevant studies
Target Organ Toxicity: Respiratory tract, digestive tract, eyes, skin
Other Information: Chronic exposure can cause liver or kidney injury based on analogs, always minimize exposure

12. Ecological Information

Ecotoxicity: Harmful to aquatic life, LD50 (fish) <100 mg/L, acute exposure reduces population of aquatic species
Persistence/Degradability: Moderate biodegradability in soil and water
Bioaccumulation: Low expected potential, no data for BCF
Mobility in Soil: Likely to leach into groundwater due to high solubility
Other Adverse Effects: Spills can impact aquatic and terrestrial environments, disrupt microbial communities, follow safe disposal practices

13. Disposal Considerations

Waste Disposal Methods: Incinerate in approved facility, chemical must be rendered non-hazardous before landfill disposal
Contaminated Packaging: Empty containers retain product residue, handle as hazardous waste, triple rinse prior to recycling or disposal
Disposal Precautions: Follow local, national, regional regulations for hazardous chemical disposal, don’t allow into drains, surface waters, or soil, keep waste segregated, label all containers clearly

14. Transport Information

UN Number: UN2733
UN Proper Shipping Name: Methylpiperidine, 3-
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: II
Labels: Flammable Liquid (Red Diamond 3)
Transport in Bulk: Not intended for bulk transport under MARPOL/IBC
Special Precautions: Avoid transport with incompatible chemicals, protect from physical damage, ensure secondary containment, transportation only by trained personnel
Environmental Hazards: Not classified as marine pollutant, but harmful to aquatic environment if released

15. Regulatory Information

OSHA: Hazardous chemical, subject to hazard communication standards
TSCA Inventory: Listed
SARA Title III: Subject to Section 311/312 (immediate acute hazard, fire hazard); not on Section 313 chemical list
REACH Registration: Check current listing in European Chemicals Agency database
Other Regulations: Follow workplace, local, and national safety regulations regarding use of chemical substances, maintain safety training and product documentation accessible for personnel, keep up to date with changes
Labeling: GHS-compliant hazard labeling required for all containers in workplace storage and transport