Product Name: N-Propylmethyldimethoxysilane
Chemical Formula: C6H16O2Si
CAS Number: 13195-24-7
Synonyms: Propylmethyldimethoxysilane
Recommended Use: Used as a coupling agent, surface modifier, or intermediate in industrial synthesis
Supplier: Information available from manufacturer
Emergency Contact: Refer to local, national, or international emergency numbers
Classification: Flammable liquid, Skin and eye irritant
Hazard Statements: May cause skin and eye irritation, harmful if inhaled, can form explosive mixtures with air, vapor may cause drowsiness or dizziness
Pictogram: Flammable, exclamation mark
Signal Word: Warning
Precautionary Statements: Avoid breathing vapors, use only in well-ventilated areas, keep away from heat or open flames, wash skin thoroughly after handling, wear protective gloves and eye protection
Chemical Name: N-Propylmethyldimethoxysilane
CAS Number: 13195-24-7
Concentration: >98%
Impurities: May contain trace levels of other organosilane compounds
Other Identifiers: None relevant for safety classification
Inhalation: Remove person to fresh air, keep comfortable for breathing, seek medical attention if symptoms persist
Skin Contact: Immediately wash skin with plenty of water, remove contaminated clothing, wash before reuse, seek medical attention if irritation develops
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present, continue rinsing, seek immediate medical help if irritation does not subside
Ingestion: Rinse mouth, do not induce vomiting, seek immediate medical attention, never give anything by mouth to an unconscious person
Most Important Symptoms: Respiratory discomfort, skin redness, eye irritation, headache, nausea
Suitable Extinguishing Media: Alcohol-resistant foam, CO2, dry chemical, water spray
Unsuitable Extinguishing Media: Do not use water jet, which can spread fire
Specific Hazards: Vapors may form explosive mixtures with air, combustion may generate hazardous gases such as silicon oxides, carbon monoxide, carbon dioxide
Protective Equipment: Firefighters should wear full protective gear with self-contained breathing apparatus
Special Procedures: Containers may explode due to pressure build-up, cool containers exposed to fire with water spray from a safe distance, prevent runoff from entering drains
Personal Precautions: Evacuate area, provide adequate ventilation, eliminate ignition sources, avoid inhalation and skin contact
Environmental Precautions: Prevent entry into waterways, sewers, or soil, notify authorities if a significant spill occurs
Methods for Cleaning Up: Absorb spill with inert material, sweep up and place into a suitable container for disposal, wash contaminated area thoroughly, ventilate area
Additional Advice: Use non-sparking tools, use protective equipment such as gloves and goggles
Handling: Handle in a well-ventilated area, avoid contact with skin and eyes, keep away from heat or flame, do not breathe vapors, use proper grounding and bonding procedures
Storage: Store in cool, dry, and well-ventilated place away from incompatible substances such as water, moisture, or strong oxidizers, keep container tightly closed and properly labeled
Special Instructions: Store away from direct sunlight, separate from strong acids and bases, only allow trained personnel to handle product
Engineering Controls: Use local exhaust ventilation to control airborne concentrations below exposure limits
Exposure Limits: No specific occupational exposure limits established, minimize exposure as a general rule
Personal Protection: Wear chemical-resistant gloves (nitrile or neoprene recommended), use splash-proof safety goggles or face shield, wear protective clothing; use respiratory protection if ventilation is inadequate
Hygiene Measures: Wash hands, forearms, and face thoroughly after handling, separate contaminated clothing, do not eat, drink, or smoke in areas where product is handled
Appearance: Clear, colorless to slightly yellow liquid
Odor: Mild, alcohol-like odor
Odor Threshold: Not established
pH: Not applicable
Melting Point/Freezing Point: -70°C
Boiling Point: 145°C
Flash Point: 32°C (closed cup)
Evaporation Rate: Not determined
Flammability: Flammable liquid
Upper/Lower Explosion Limits: Lower: 1.2%, Upper: 9.5% by volume (estimated)
Vapor Pressure: 7 mmHg at 25°C
Vapor Density: Heavier than air
Relative Density: 0.87 at 20°C
Solubility: Reacts with water, forms alcohols and silanols
Partition Coefficient: log Kow not available
Auto-ignition Temperature: 225°C
Decomposition Temperature: Not established
Molecular Weight: 148.28 g/mol
Viscosity: Low viscosity, mobile liquid
Chemical Stability: Stable under recommended storage conditions
Reactivity: Reacts with water or moisture, generates methanol and silanols, may heat up
Possibility of Hazardous Reactions: Exposure to water or humid air may produce methanol, avoid contact with strong oxidizers and acids
Conditions to Avoid: Heat, sparks, open flames, moisture
Incompatible Materials: Water, moisture, strong acids and bases, oxidizing agents
Hazardous Decomposition Products: Methanol, silicon oxides, carbon oxides
Likely Routes of Exposure: Inhalation, skin and eye contact, ingestion
Acute Toxicity: May cause respiratory irritation, headache, and dizziness, skin may show redness or dryness, eyes may become red and watery
Chronic Effects: Prolonged or repeated exposure can cause liver and kidney effects due to methanol formation
Skin Sensitization: Not classified as a sensitizer
Carcinogenicity: Not listed as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No conclusive data; methanol byproduct may cause birth defects if exposure is significant
Additional Health Hazards: Methanol released during handling or accidental exposure can cause toxic effects on central nervous system, may lead to blindness or death if ingested in large quantities
Ecotoxicity: Toxic to aquatic organisms if released in significant concentrations, potential for bioaccumulation is low
Persistence and Degradability: Decomposes in water, producing methanol and silanols that degrade further
Bioaccumulative Potential: Expected to be low due to rapid hydrolysis and degradation
Mobility in Soil: High mobility due to low adsorption, may migrate into groundwater
Other Adverse Effects: Methanol is toxic to aquatic life, avoid release into the environment, spills should be contained and cleaned up promptly
Disposal Methods: Dispose in accordance with federal, state, and local regulations, incinerate or landfill at approved facility
Contaminated Packaging: Empty containers should be handled as hazardous waste, do not reuse for other purposes
Special Precautions: Avoid dispersal of spilled material or runoff into soil, waterways, or drains, consult waste disposal experts for advice
UN Number: 1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (N-Propylmethyldimethoxysilane)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Marine Pollutant: No data
Special Transport Precautions: Ensure containers are tightly closed, properly labeled, and secured, transport in compliance with local, national, and international regulations, avoid conditions that may cause leaks or ruptures
Regulatory Status: Subject to OSHA Hazard Communication Standards, classified as hazardous under criteria of GHS system
Inventory Status: Listed on TSCA, EINECS, and other major chemical inventories
SARA Title III: Not subject to Section 313 reporting
California Proposition 65: Methanol formed on contact with water is listed as a reproductive toxin
Other Regulations: Workers must be trained in safe use, product safety information should be available at the workplace, regular health and environmental monitoring may be required, refer to local rules for further compliance guidance
