Material Safety Data Sheet (MSDS) – N-Decylpyridinium Bromide

1. Identification

Product Name: N-Decylpyridinium Bromide
Synonyms: 1-Decylpyridinium Bromide, Decylpyridinium bromide
CAS Number: 927-66-8
Recommended Use: Laboratory chemical, antiseptic, research applications
Supplier Details: Manufacturer contact addresses found on shipment documentation. Emergency telephone numbers should follow those listed on original packaging.

2. Hazard Identification

Classification: Harmful if swallowed, causes severe skin burns and eye damage, may cause respiratory irritation
GHS Label Elements: Danger symbol, Corrosive pictogram
Signal Word: Danger
Hazard Statements: Toxic to aquatic life with long lasting effects. Causes serious eye damage and skin irritation. Harmful if swallowed or inhaled.
Precautionary Statements: Wash skin thoroughly after handling. Do not eat, drink or smoke while using. Avoid release to the environment. Wear protective gloves and eye/face protection.

3. Composition / Information on Ingredients

Chemical Identity: N-Decylpyridinium Bromide
Concentration: >98% by weight
Molecular Formula: C15H26BrN
Component: N-Decylpyridinium Bromide (CAS 927-66-8), no significant impurities relevant to hazard classification.

4. First Aid Measures

Eye Contact: Rinse immediately with plenty of water for at least 15 minutes. Seek medical attention quickly.
Skin Contact: Remove contaminated clothing. Wash skin with soap and water. Call a physician, especially if irritation persists.
Inhalation: Remove person to fresh air. Keep at rest and provide oxygen if necessary. Medical attention required if symptoms continue.
Ingestion: Rinse mouth if conscious. Do not induce vomiting. Get immediate medical advice.

5. Fire-Fighting Measures

Suitable Extinguishing Media: Water spray, dry chemical powder, carbon dioxide, foam. Use methods appropriate for surrounding materials.
Specific Hazards: Emits toxic fumes of nitrogen oxides, carbon oxides, hydrogen bromide under heat or fire.
Protective Equipment: Wear self-contained breathing apparatus. Use chemical-resistant suit if large quantity involved.

6. Accidental Release Measures

Personal Precautions: Avoid skin and eye contact. Wear proper protective clothing and breathing apparatus.
Environmental Precautions: Prevent from entering drains, surface water, or soil. Alert proper authorities if a large spill occurs.
Cleanup Methods: Sweep or scoop up with non-sparking tools. Place in dry, labeled chemical waste container. Wash spill area with plenty of water.

7. Handling and Storage

Handling: Work in well-ventilated area. Avoid creating dust. Do not get into eyes, on skin, or on clothing. Handle only with proper protective equipment.
Storage: Store tightly closed in dry, cool, well-ventilated area. Protect from light and moisture. Segregate from oxidizers and acids.

8. Exposure Controls and Personal Protection

Control Parameters: No specific occupational exposure limits established.
Engineering Controls: Use chemical fume hood or local exhaust ventilation.
Personal Protective Equipment: Safety goggles, chemical-resistant gloves, impervious apron or lab coat. For dust or spray, use particulate respirator. Eyewash stations and emergency showers should be accessible.

9. Physical and Chemical Properties

Appearance: White to off-white powder or crystalline solid
Odor: Faint aromatic
Melting Point: 97-103°C
Boiling Point: Not available; decomposes
Solubility: Soluble in water, ethanol
pH: 5-7 (1% solution at 25°C)
Vapor Pressure: Negligible at room temperature
Density: 1.1 g/cm³
Partition Coefficient: Not measured
Flash Point: Not flammable in standard conditions

10. Stability and Reactivity

Chemical Stability: Stable under normal handling and storage conditions
Reactivity: May react with strong oxidizers, acids, and bases
Hazardous Decomposition: Produces nitrogen oxides, hydrogen bromide, carbon oxides upon combustion
Polymerization: Not expected to occur

11. Toxicological Information

Acute Toxicity: Oral LD50 (rat): approximately 300-400 mg/kg
Skin Corrosion/Irritation: Causes severe irritation and burns
Serious Eye Damage/Irritation: Extreme irritant, risk of permanent eye damage
Respiratory Sensitisation: Inhalation may cause respiratory tract irritation
Chronic Effects: No long-term data in humans; avoid repeated exposure
Other Risks: May aggravate pre-existing skin or respiratory conditions

12. Ecological Information

Aquatic Toxicity: Highly toxic to aquatic organisms (fish LC50: 0.2-0.5 mg/L, Daphnia EC50: 0.1-0.4 mg/L)
Persistence/Degradability: Not inherently biodegradable; may persist in the environment
Bioaccumulative Potential: Bioaccumulation cannot be excluded in aquatic organisms
Mobility in Soil: Relatively mobile; leaching possible if released in large quantity
Other Information: Avoid release to the environment; notify authorities of a significant spill

13. Disposal Considerations

Waste Disposal: Dispose of as hazardous chemical waste. Follow local, state, national, or regional regulations.
Contaminated Packaging: Rinse containers before recycling or disposal where permitted. Destroy if not reusable.
Other Methods: Consider using a licensed chemical disposal company for bulk materials.

14. Transport Information

UN Number: 3261
UN Proper Shipping Name: Corrosive solid, acidic, organic, n.o.s. (N-Decylpyridinium Bromide)
Transport Hazard Class: 8 (Corrosive)
Packing Group: II
Marine Pollutant: Yes
Special Precautions: Avoid shipment with incompatible materials. Transport in compliance with international, national, and regional regulations.

15. Regulatory Information

Labelling: Corrosive, Environmentally hazardous substance, GHS compliant
Inventory Status: Listed on TSCA, EINECS/ELINCS, REACH, DSL, and other chemical inventories
SARA Title III: Not subject to SARA 313 reporting
Other Relevant Regulations: Subject to workplace hazard communication standards. Consult country-specific regulations for environmental controls, occupational health, labelling, restrictions on marketing and use.