Product Name: Tris(2-Methoxyethoxy)Vinylsilane
CAS Number: 1067-53-4
Synonyms: Vinyltris(2-methoxyethoxy)silane; Silane, Vinyltris(2-methoxyethoxy)
Recommended Use: Coupling agent, adhesion promoter in plastics, rubbers, and coatings
Manufacturer/Supplier: [Insert manufacturer information]
Contact Information: [Insert emergency phone number and address]
Emergency Overview: Colorless to pale yellow liquid with ether-like odor
GHS Classification: Eye irritation Category 2; Skin irritation Category 2; Specific target organ toxicity (single exposure) Category 3
Signal Word: Warning
Hazard Statements: Causes serious eye irritation. Causes skin irritation. May cause respiratory irritation.
Pictograms: Exclamation mark
Precautionary Statements: Avoid inhalation, skin and eye contact. Wash after handling. Use protective clothing.
Routes of Exposure: Inhalation, skin, eyes, ingestion
Target Organs: Respiratory tract, skin, eyes
Chemical Name: Tris(2-Methoxyethoxy)Vinylsilane
CAS Number: 1067-53-4
Concentration: >95%
Impurities: 2-Methoxyethanol (<1%)
Other Ingredients: None significant for classification
Molecular Formula: C11H24O6Si
Molecular Weight: 280.39 g/mol
Inhalation: Remove person to fresh air. Keep at rest in a position comfortable for breathing. Seek medical attention if symptoms occur such as coughing or difficulty breathing.
Skin Contact: Take off contaminated clothing immediately. Rinse skin with plenty of soap and water for several minutes. Get medical attention if irritation persists or rash appears.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do; continue rinsing. See a doctor if eye irritation or redness continues.
Ingestion: Rinse mouth thoroughly. Do not induce vomiting unless instructed by medical personnel. Call poison center or doctor immediately.
Most Important Symptoms: Eye redness, skin redness or pain, coughing, shortness of breath, sore throat
Immediate Medical Attention Needed: For severe symptoms affecting breathing, skin burns, or major eye injury
Suitable Extinguishing Media: Carbon dioxide, dry chemical, foam, or water spray
Unsuitable Extinguishing Media: High volume water jet may spread fire
Specific Hazards: Vapors may form explosive mixtures with air. Incomplete combustion releases carbon monoxide, carbon dioxide, and formaldehyde.
Hazardous Combustion Products: Silicon oxides, carbon oxides, formaldehyde, possibly low molecular weight hydrocarbons
Protection for Firefighters: Full protective clothing and self-contained breathing apparatus
Special Procedures: Cool containers exposed to fire with water spray. Prevent run-off into sewers or waterways.
Personal Precautions: Evacuate unnecessary personnel. Ventilate area. Prevent skin and eye contact. Avoid breathing vapors.
Protective Equipment: Chemical-resistant gloves (nitrile recommended), splash goggles, overall or apron, respirator for significant vapor risk
Environmental Precautions: Block entry into watercourses, drains, and soil. Notify local authorities in case of large spill.
Containment Methods: Absorb with clay, sand, inert material. Place in a labelled waste container.
Cleanup Procedures: Collect spilled product mechanically. Wash area with detergent and water. Dispose of waste according to disposal laws.
Handling: Use only in well-ventilated areas. Avoid inhalation, contact with skin or eyes. Do not eat, drink or smoke while using. Handle away from heat, open flames, or sources of static.
Storage: Keep in tightly closed original container. Store in a cool, dry, and well-ventilated location out of direct sunlight. Keep container upright and avoid container damage.
Storage Temperature: 2 - 30°C recommended. Protect from freezing and excessive heat.
Incompatible Materials: Strong acids, strong bases, strong oxidizers, moisture (hydrolyzes slowly)
Special Storage Requirements: Use corrosion-resistant shelves or storage cabinets. Segregate from incompatible substances.
Occupational Exposure Limits: No established specific limit for this substance. Observe general vapor exposure controls. For 2-methoxyethanol impurity, ACGIH TLV: 5 ppm (skin).
Engineering Controls: Use process enclosures, local exhaust ventilation, or general dilution ventilation to keep airborne exposure as low as possible.
Respiratory Protection: Use an appropriate organic vapor respirator if exposure exceeds recommended limits or ventilation is inadequate.
Hand Protection: Wear chemical-resistant gloves such as nitrile or neoprene.
Eye Protection: Safety goggles or face shield
Skin Protection: Long-sleeved chemical-resistant clothing and closed footwear
Hygiene Measures: Wash hands and face before breaks and after working with chemical. Change contaminated clothing promptly.
Appearance: Clear, colorless to pale yellow liquid
Odor: Ether-like, mild
Odor Threshold: Not determined
pH: Not applicable (reacts with water)
Melting/Freezing Point: -55°C
Boiling Point: 285°C
Flash Point: 135°C
Evaporation Rate: Not available
Flammability: May form flammable mixtures at high temperature
Explosion Limits: Lower: not determined; Upper: not determined
Vapor Pressure: 0.015 mmHg (20°C)
Vapor Density: 9.7 (air = 1)
Relative Density/Specific Gravity: 1.06 (20°C)
Solubility: Decomposes in water; soluble in organic solvents
Partition Coefficient (n-octanol/water): log Kow 0.7
Auto-ignition Temperature: 310°C
Decomposition Temperature: Not available
Viscosity: 4.2 cSt (25°C)
Chemical Stability: Stable under recommended storage conditions. Hydrolyzes slowly to form methoxyethanol and silanols.
Reactivity: Reacts with water and moisture, acids, and bases.
Hazardous Reactions: Contact with water produces methoxyethanol and byproducts; contact with strong oxidizers causes exothermic reaction.
Conditions to Avoid: Exposure to moisture, heat, sources of ignition
Incompatible Materials: Moisture, acids, strong bases, strong oxidizing agents
Hazardous Decomposition Products: Methoxyethanol, formaldehyde, silicon oxides, carbon monoxide, carbon dioxide
Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity: Oral (rat) LD50: >2,000 mg/kg. Dermal (rabbit) LD50: >2,000 mg/kg. Inhalation toxicity data not established.
Skin Corrosion/Irritation: Causes moderate skin irritation.
Serious Eye Damage/Irritation: Causes serious eye irritation.
Respiratory Sensitization: Vapors may cause irritation of respiratory tract.
Germ Cell Mutagenicity: No data available; structurally related silanes have not shown mutagenic effects.
Carcinogenicity: Not classified according to available information.
Reproductive Toxicity: May cause harm to fertility or unborn child (due to possible release of methoxyethanol on hydrolysis).
STOT (Single and Repeated Exposure): May cause respiratory tract irritation, central nervous system effects at high concentrations.
Symptoms: Eye and skin redness or pain, coughing, dizziness, headache.
Toxicity to Aquatic Life: Toxicity expected to be low (based on structure and available data). May be harmful to aquatic organisms on chronic exposure.
Persistence and Degradability: Undergoes slow hydrolysis in water, forming silanols and methoxyethanol which are biodegradable.
Bioaccumulative Potential: Low, as the substance has low log Kow and hydrolyzes to biodegradable byproducts.
Mobility in Soil: Expected to be moderately mobile until it hydrolyzes
Other Adverse Effects: Not expected to cause significant environmental hazards in small spills; large releases may contaminate surface water and soil due to methoxyethanol formation.
Degradation Products: Methoxyethanol and silanols are further broken down in the environment
Waste Treatment Methods: Collect material and contaminated absorbents in suitable containers. Dispose of as hazardous waste per local, state, or federal regulations.
Chemical Disposal: Incinerate in a chemical incinerator equipped with afterburner and scrubber.
Contaminated Packaging: Empty containers may retain product residues and vapors. Treat as hazardous and dispose of in accordance with the regulations.
Special Precautions: Do not drain to the sewer or release to the environment. Avoid combustion in open areas.
Regulatory Compliance: Review and comply with region-specific waste disposal requirements.
UN Number: Not classified as dangerous goods under UN transport regulations
UN Proper Shipping Name: Not regulated for transport
Transport Hazard Class: Not classified
Packing Group: Not assigned
Marine Pollutant: No
Special Transport Precautions: Transport in tightly closed containers upright, secure against movement and rough handling.
Labels Required: Not required under DOT, ADR, IMDG, IATA
Emergency Response Guide: Not assigned; follow general chemical transport procedures
OSHA Status: Classified as hazardous due to irritation and reproductive toxicity potential (if hydrolyzed)
SARA Title III: Not listed in Section 302, 304, or 313
TSCA Inventory: Listed
EINECS/ELINCS: Listed (EINECS 213-934-0)
Canadian DSL/NDSL: Listed in DSL
Labeling Requirements: Hazard pictogram and signal word “Warning” for irritation hazard
WHMIS Classification (Canada): D2B: Eye and skin irritation
California Prop 65: Methoxyethanol, a potential byproduct, is listed for developmental and reproductive toxicity
Other Regulations: Subject to chemical substance control laws in many regions; consult local guidance for workplace controls
