Product Name: Vinyltri(isopropoxy)silane
Synonyms: Triisopropoxyvinylsilane, Vinyltris(1-methylethoxy)silane
Chemical Formula: C11H24O3Si
CAS Number: 15332-99-7
Uses: Coupling agent for sealants, adhesives, fiberglass, surface modification
Supplier Contact: Include company name, address, emergency telephone, and email details
Classification: Flammable liquid, Causes serious eye irritation, Harmful if inhaled, May cause skin irritation
Hazard Symbols: Flame, Exclamation mark
Signal Word: Warning
Hazard Statements: Highly flammable liquid and vapor. Causes eye irritation. May cause respiratory irritation. Toxic to aquatic life.
Precautionary Statements: Keep away from heat, sparks, open flames. Wear eye and face protection. Use only in well-ventilated areas. Avoid release to environment.
Component Name: Vinyltri(isopropoxy)silane
CAS Number: 15332-99-7
Concentration (pure): Greater than 97%
Other Impurities: Less than 3%, mostly residual alcohols and siloxanes
Inhalation: Move person to fresh air. Provide oxygen and call for medical attention if breathing is difficult.
Skin Contact: Remove contaminated clothing. Wash skin thoroughly with soap and water. Seek medical help if irritation persists.
Eye Contact: Rinse immediately with plenty of water for at least 15 minutes, holding eyelids wide open. Get medical attention.
Ingestion: Rinse mouth. Do not induce vomiting. Seek immediate medical attention.
Suitable Extinguishing Media: Carbon dioxide, dry chemical, alcohol-resistant foam
Unsuitable Extinguishing Media: Water jet
Specific Hazards: Emits toxic fumes under fire conditions, including carbon oxides and silicon oxides. Fumes may be irritating or harmful if inhaled.
Protective Equipment: Firefighters should wear self-contained breathing apparatus, full protective gear
Fire-Fighting Procedures: Remove containers from fire area if safe. Use water spray to cool containers.
Personal Precautions: Evacuate unnecessary personnel. Avoid breathing vapors. Ventilate area.
Environmental Precautions: Prevent release to sewers, waterways, and soil.
Containment & Clean-Up: Absorb with inert material such as sand or diatomaceous earth. Use spark-proof tools. Place in closed container for disposal. Wash spill site after cleanup.
Handling: Use outdoors or in well-ventilated spaces. Keep away from sources of ignition. Do not breathe vapors or mists. Use suitable personal protection like gloves, goggles.
Storage: Store in tightly closed container in a cool, dry, well-ventilated place, away from direct sunlight and incompatible substances such as moisture, strong oxidizers, acids, and bases. Keep containers upright.
Occupational Limits: No established workplace exposure limits. Treat as nuisance vapor; avoid overexposure.
Engineering Controls: Use exhaust ventilation, local fume extraction, or work outdoors.
Personal Protective Equipment (PPE): Chemical-resistant gloves (nitrile recommended), safety goggles, flame-retardant overalls or lab coat, impervious footwear. Respiratory protection if ventilation is poor; use air-purifying respirator approved for organic vapors.
Hygiene Measures: Wash after handling. Remove contaminated clothing and wash before reuse.
Appearance: Clear, colorless to pale yellow liquid
Odor: Characteristic alcohol odor
Boiling Point: 214–220°C (417–428°F)
Melting Point: Below -40°C (-40°F)
Flash Point: 51°C (124°F, closed cup)
Vapor Pressure: 1 mmHg at 58°C
Density: 0.96–0.98 g/cm³
Solubility: Reacts slowly with water; soluble in most organic solvents
Autoignition Temp: 350°C (662°F)
Viscosity: 1.5–2.0 mPa·s
Chemical Stability: Stable under recommended storage and handling.
Polymerization: No hazardous polymerization expected.
Reactivity: Hydrolyzes slowly with water, producing isopropanol and silanols. May produce flammable vapors with heat.
Incompatible Materials: Avoid contact with water, strong oxidizers, acids, and bases.
Decomposition Products: On burning or hydrolysis, may form silicon dioxide, isopropanol, carbon monoxide, carbon dioxide.
Likely Routes of Exposure: Inhalation, skin contact, eye contact, ingestion
Acute Toxicity Data: Oral LD50 (rat) > 2000 mg/kg, Dermal LD50 (rabbit) > 2000 mg/kg
Effects of Overexposure: Irritation of eyes, skin, and upper respiratory tract. Central nervous system effects from inhalation of vapors at high concentrations.
Chronic Effects: Prolonged exposure may cause contact dermatitis or worsen respiratory conditions.
Carcinogenicity: No evidence in current animal studies
Mutagenicity and Reproductive Toxicity: Data not sufficient, not expected to pose significant genetic hazard
Aquatic Toxicity: Harmful to aquatic organisms; short-term contact may impair aquatic life
Mobility in Soil: Limited data; hydrolyzes to silicon compounds and alcohols
Persistence and Degradability: Expected to be hydrolyzed and biodegraded in environment
Bioaccumulative Potential: Low—hydrolysis products not known to bioaccumulate
Ecotoxicity Data: No long-term tests available; short-term tests show moderate toxicity to aquatic life
Waste Disposal: Dispose of in accordance with local, state, and national regulations. Incinerate in chemical incinerator equipped with afterburner and scrubber. Avoid landfilling where possible.
Container Disposal: Triple-rinse, puncture, and recycle or dispose as hazardous waste.
Precautions: Do not allow uncontrolled release to environment.
Excess Material: Contact a licensed professional waste disposal service.
UN Number: UN 1993
Proper Shipping Name: Flammable Liquid, N.O.S. (Vinyltri(isopropoxy)silane mixture)
Hazard Class: 3 (Flammable Liquids)
Packing Group: III
Labels: Flammable Liquid symbol
Marine Pollutant: Yes
Special Precautions: Keep in cool, ventilated storage. Secure during transit.
Global Inventory Status: Listed or compliant with TSCA (USA), EINECS/ELINCS (EU), DSL (Canada), AICS (Australia), ENCS (Japan), and other major regulations.
OECD Status: Not classified as persistent, bioaccumulative, or toxic to persistence standards
OSHA: Regarded as hazardous chemical under hazard communication standards
SARA Title III, Section 313: Not subject to reporting
REACH (EU): Subject to registration for major uses or above threshold volumes
Label Elements (GHS): Flammable liquid, Causes eye irritation, Harmful if inhaled
