Material Safety Data Sheet (MSDS) for Myristylpyridinium Bromide

Identification

  • Product Name: Myristylpyridinium Bromide
  • Chemical Formula: C19H34BrN
  • CAS Number: 140-64-7
  • Technical Name: 1-Myristylpyridinium Bromide
  • Manufacturer: Contact supplier for specific manufacturer details
  • Use: Surfactant, antiseptic in pharmaceuticals, laboratory reagent
  • Contact Information: Refer to supplier safety department for emergency assistance

Hazard Identification

  • GHS Classification: Acute toxicity (oral and dermal), Skin corrosion/irritation, Eye damage/irritation
  • Hazard Symbols: Corrosive, Harmful
  • Signal Word: Danger
  • Hazard Statements: Causes severe skin burns and eye damage, harmful if swallowed or in contact with skin, may cause respiratory irritation
  • Precautionary Statements: Avoid breathing dust or vapors, wear protective gloves and eye/face protection, wash hands thoroughly after handling

Composition / Information on Ingredients

  • Chemical Name: Myristylpyridinium Bromide
  • Concentration: 98% or higher by weight
  • Synonyms: 1-Tetradecylpyridinium Bromide
  • Impurities: Typically contains trace levels of related pyridinium compounds, presence varies by synthesis batch
  • Molecular Weight: 356.38 g/mol

First Aid Measures

  • Inhalation: Move to fresh air, provide oxygen if breathing is difficult, seek medical help if symptoms persist
  • Skin Contact: Flush exposed skin with large amounts of water, remove contaminated clothing, seek medical attention for persistent irritation
  • Eye Contact: Rinse eyes gently with water for at least 15 minutes, lift eyelids occasionally, get immediate medical aid
  • Ingestion: Rinse mouth, do not induce vomiting, drink water if conscious, get immediate medical advice
  • Most Important Symptoms: Severe irritation, redness, burns, pain, possible systemic toxicity

Fire-Fighting Measures

  • Suitable Extinguishing Media: Use water spray, dry chemical powder, foam, carbon dioxide for small fires
  • Unsuitable Media: Direct water jet could spread material
  • Hazards from Combustion: Produces toxic fumes including hydrogen bromide, carbon oxides, nitrogen oxides
  • Protective Equipment: Firefighters need full protective clothing and self-contained breathing apparatus
  • Special Procedures: Keep containers cool with water spray, contain contaminated run-off to prevent entry into drains

Accidental Release Measures

  • Personal Precautions: Wear chemical-resistant gloves, protective clothing, and goggles; provide adequate ventilation
  • Environmental Precautions: Prevent entry into sewers, rivers, and soil; contain spill using inert absorbent such as sand or earth
  • Cleanup Methods: Sweep up without creating dust, place in clearly labeled container for disposal; clean residue with water
  • Decontamination: Wash affected area with plenty of water after cleanup, ventilate area before reuse

Handling and Storage

  • Handling: Avoid prolonged or repeated skin contact, wear proper personal protective equipment, keep contained to avoid generation of dust
  • Storage: Store in tightly closed containers, in a cool, dry, well-ventilated place, away from incompatible substances such as strong oxidizers and acids
  • Incompatibilities: Strong acids, strong bases, and oxidizing agents can cause dangerous reactions
  • Specific Requirements: Label shelves and containers clearly, keep away from food and drink materials

Exposure Controls and Personal Protection

  • Exposure Limits: No established occupational exposure limits for this substance; minimize exposure by engineering controls
  • Engineering Controls: Use local exhaust ventilation, safety showers, and eyewash stations in the immediate work area
  • Personal Protection: Wear gloves (nitrile or neoprene), safety glasses with side-shields, lab coats or protective coveralls
  • Respiratory Protection: Use properly fitted particulate respirator where airborne dust exceeds acceptable levels
  • General Hygiene: Wash hands and change clothing after handling the product, do not eat or drink around chemical storage or use locations

Physical and Chemical Properties

  • Appearance: White to off-white crystalline powder
  • Odor: Low or no significant odor
  • Melting Point: 184°C to 188°C
  • Boiling Point: Decomposes before boiling
  • Solubility: Soluble in water, moderately soluble in alcohols
  • pH (1% solution): Mildly acidic to neutral
  • Density: Approximately 1.1 g/cm³ at 20°C
  • Partition Coefficient (log P): Not readily available
  • Vapor Pressure: Negligible at room temperature
  • Flash Point: No data provided; material is not highly flammable in solid form

Stability and Reactivity

  • Chemical Stability: Stable at room temperature under recommended storage conditions, sensitive to extreme temperatures or incompatible substances
  • Reactive Materials: Reacts with strong oxidizing agents and acids, potential for hazardous reaction if mixed inappropriately
  • Decomposition Hazard: Exposure to fire or high heat can generate toxic bromide or nitrogen oxide fumes
  • Polymerization: Not known to undergo hazardous polymerization

Toxicological Information

  • Acute Toxicity: Harmful if swallowed, toxic in contact with skin and upon inhalation in high concentrations
  • Skin Sensitization: Prolonged contact can cause burns or dermatitis
  • Eye Damage: Contact may produce severe injury or permanent damage
  • Target Organs: Respiratory system, skin, eyes, mucous membranes
  • Chronic Exposure: No comprehensive data available for repeated exposure; always use good laboratory practices
  • Symptoms of Exposure: Burning sensation, rash, redness, cough, shortness of breath

Ecological Information

  • Ecotoxicity: Toxic to aquatic life, causes long-term adverse effects in aquatic environments
  • Persistence and Degradability: Does not rapidly degrade in most environments, bioaccumulative potential is moderate
  • Mobility in Soil: Moderate mobility, especially in sandy or permeable soils
  • Other Effects: Avoid release to waterways and soil, as it may disrupt local microbial balance

Disposal Considerations

  • Waste Treatment Methods: Dispose of in accordance with local, regional, and national regulations using a licensed hazardous waste contractor
  • Contaminated Packaging: Rinse thoroughly, render containers unusable before disposal with chemical waste collection
  • Special Precautions: Do not dispose of with municipal waste; incineration using approved systems typically recommended for organic halides

Transport Information

  • UN Number: Consult shipping regulations for classification based on current quantity and packaging
  • UN Proper Shipping Name: Environmentally hazardous substance, solid, n.o.s. (contains Myristylpyridinium Bromide)
  • Transport Hazard Class: 9 (Miscellaneous dangerous substances)
  • Packing Group: III
  • Marine Pollutant: Yes
  • Recommendation: Ensure secure packaging to prevent dust generation and leakage during transit

Regulatory Information

  • Labeling Requirements: Substance labeled with clear hazard statements and symbols as required by GHS and local law
  • International Inventories: Check local and national chemical inventories for specific registration status
  • SARA 313: Not regulated as a listed toxic chemical in the U.S. but may be regulated under regional frameworks
  • Right-to-Know: May be subject to workplace hazardous chemical reporting; always check for state and country requirements
  • Other Regulations: Follow workplace safety, transportation, and disposal regulations in force at specified location