Product Name: Vinyltris(Methylethylketoxime)Silane
Chemical Formula: C14H33N3O3Si
Synonyms: Tris(methylethylketoxime)vinylsilane
CAS Number: 2224-33-1
Recommended Use: Industrial application as a crosslinking agent for silicones and sealants
Supplier: [Company-specific information provided by manufacturer]
Emergency Phone Number: [Contact number provided by manufacturer or chemical supplier]
Classification: Flammable liquid, skin irritant, eye irritant, possible harmful if inhaled or ingested
Signal Word: Warning
Hazard Statements: May cause skin and eye irritation; harmful if swallowed, can affect respiratory tract on prolonged exposure
Precautionary Statements: Avoid contact with skin and eyes; use only outdoors or in well-ventilated areas; wash thoroughly after handling; wear protective gloves, clothing, and eye protection
Hazard Pictograms: Exclamation mark, Flame
Mother Risk: Sensitizing on direct contact; repeated exposure can cause allergic skin reaction
Unusual Effects: Vapor may be irritating to mucous membranes and respiratory system if released indoors.
Chemical Identity: Vinyltris(Methylethylketoxime)Silane (main component, >97%)
Impurities: May contain trace amounts of Methylethylketoxime (<2%)
Other Ingredients: None of toxicological significance found during product manufacturing
Mixture: Not formulated as a blend
Molecular Weight: 319.52 g/mol
Inhalation: Move person to fresh air immediately; seek medical attention if symptoms persist such as coughing, headache, or dizziness
Skin Contact: Remove contaminated clothing; wash affected skin promptly with soap and plenty of water; if irritation remains, consult a physician
Eye Contact: Rinse open eyes slowly and gently with plenty of water for at least 15 minutes; lift upper and lower eyelids occasionally; remove contact lenses if present; seek medical help right away for continued pain or redness
Ingestion: Rinse mouth thoroughly; do not induce vomiting; never give anything by mouth to an unconscious person; seek medical advice promptly
Note for Responders: Provide symptomatic and supportive care as needed; show this data sheet to medical personnel if possible.
Suitable Extinguishing Media: Alcohol-resistant foam, dry chemical powder, carbon dioxide; water spray can cool containers but may spread fire
Unsuitable Media: Direct water jet can spread flammable material
Specific Hazards from Fire: Vapors may form explosive mixtures with air, especially in confined areas; combustion can produce oxides of carbon, nitrogen, silicon compounds
Special Protective Equipment: Firefighters should wear self-contained breathing apparatus (SCBA) with full protective suit
Additional Advice: Cool fire-exposed containers with water from a safe distance; evacuate area and prevent runoff from entering water sources or drains.
Personal Precautions: Wear chemical protective clothing, gloves, goggles, and suitable respiratory protection if necessary; avoid skin or eye contact
Environmental Precautions: Stop leak if it can safely be done; prevent further leakage or spillage; do not allow product to reach soil, sewers, or waterways
Containment Methods: Prevent further leakage where safe; ventilate area to remove vapors
Cleanup Procedures: Use inert absorbent (sand, earth, vermiculite) to soak up; collect and place in suitable, closed, leak-proof containers for disposal; wash area with plenty of water after removal
Disposal of Collected Material: Follow regulations for special waste, as product requires disposal in accordance with governmental regulations.
Precautions for Safe Handling: Avoid inhalation of vapors and prevent contact with eyes, skin, and clothing; take measures to prevent static discharge; use only in areas equipped with explosion-proof ventilation
Advice on General Occupational Hygiene: Wash hands and face after using; remove contaminated clothing and wash before reuse
Conditions for Safe Storage: Store in tightly-sealed original container in a cool, dry, and well-ventilated place; keep away from heat sources, sparks, open flames, and incompatible substances such as oxidizers or acids
Storage Temperature: Maintain at 5–30°C; avoid freezing or excessive heat
Storage Incompatibility: Keep away from foodstuffs, beverages, and animal feed; segregate from oxidizing materials
Storage Life: Monitor shelf life and stability regularly—product degrades when exposed to moisture and air.
Exposure Limits: No established occupational exposure limits for this compound; suppliers may recommend limits based on methylethylketoxime byproduct (typically 3 ppm TWA)
Engineering Controls: Use explosion-proof local exhaust ventilation to minimize inhalation; provide eyewash stations and safety showers in work area
Personal Protective Equipment (PPE): Safety goggles with side shields, impermeable gloves (nitrile or neoprene), flame-resistant clothing with long sleeves, closed shoes
Respiratory Protection: Employ approved respirator (NIOSH/MSHA) for airborne concentrations above recommended limits
Environmental Exposure: Control or recapture vapors; filter or scrub exhaust where possible
Appearance: Colorless to pale yellow oily liquid
Odor: Mild, sweet, characteristic oxime smell
pH: Not applicable (non-aqueous)
Melting Point/Freezing Point: -58°C estimated
Boiling Point: 246°C
Flash Point: 70°C (closed cup)
Evaporation Rate: Slower than butyl acetate
Flammability (Solid, Gas): Not applicable; flammable liquid
Vapor Pressure: 0.2 mmHg at 25°C
Vapor Density: Heavier than air
Solubility: Insoluble in water; miscible with most organic solvents
Partition Coefficient (n-octanol/water): >3 (hydrophobic)
Auto-ignition Temperature: 260°C
Decomposition Temperature: Not established; avoid thermal decomposition
Viscosity: Approx. 40-60 mPa·s at 25°C
Density: 1.01 g/cm³ at 20°C
Chemical Stability: Stable in sealed packaging under normal conditions; hydrolyzes in the presence of moisture
Reactivity: May react with acids, oxidizers, and strong bases; reacts with water to release methylethylketoxime
Conditions to Avoid: Exposure to moisture, heat, and open flames
Incompatible Materials: Strong oxidizing agents, acids, water, Lewis acids
Decomposition Products: Carbon monoxide, carbon dioxide, nitrogen oxides, silicon oxides, methylethylketoxime fumes generated during thermal breakdown
Acute Toxicity: Oral LD50 (rat) estimated at >5000 mg/kg; dermal LD50 (rabbit) >2000 mg/kg; inhalation toxicity data limited
Skin Irritation: May cause redness and pain on contact; repeated contact aggravates effects
Eye Irritation: Causes stinging, redness, watery eyes, visual disturbance
Respiratory Effects: At high vapor levels, can cause sore throat, coughing, and headache; repeated or prolonged exposure leads to chronic irritation
Ingestion Effects: May result in indigestion, nausea, or central nervous system depression in significant doses
Sensitization: Repeated skin contact can cause allergic response in sensitized individuals
Carcinogenicity: Methylethylketoxime, a byproduct, is classified as a possible human carcinogen (IARC Group 2B)
Other Effects: No known mutagenic or reproductive hazards identified for parent compound
Aquatic Toxicity: Data limited; not expected to be highly toxic at environmental concentrations but harmful to aquatic life with long-lasting effects
Persistence and Degradability: Degrades slowly under normal conditions; hydrolyzed in water
Bioaccumulation Potential: High log Kow value suggests potential to bioaccumulate
Mobility in Soil: Low as a result of low water solubility and high adsorption potential
Other Adverse Effects: May release methylethylketoxime upon degradation, which shows greater aquatic toxicity
Precaution: Avoid product release to the environment; follow spill response protocols for accidental discharge.
Product Disposal: Treat as hazardous waste; sent for incineration or other approved chemical destruction in line with local and national regulations
Container Disposal: Empty containers can retain residue; triple rinse before disposal; puncture and recycle or dispose at permitted facility
Waste Codes: Relevant codes for organic solvents and silane compounds apply
Precautions: Do not dispose in general waste streams or into the environment; consult professional hazardous waste disposal providers
Regulatory Guidance: Disposal must conform to relevant sections of environmental and waste management laws in the region.
UN Number: 1993 (if classified as flammable liquid, n.o.s.)
Proper Shipping Name: Flammable liquid, n.o.s. (Vinyltris(Methylethylketoxime)Silane)
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: III
Label: Flammable liquid
Marine Pollutant: Not classified as marine pollutant under current ADN/IMDG rules
Special Precautions: Ship in tightly-closed containers; avoid movement near heat sources or flames; confirm vehicle ventilation
Emergency Response Guide Number: 128
Chemical Inventory Status: Listed in US TSCA, EU EINECS/REACH, Japan ENCS, Canada DSL/NDSL
OSHA Hazard Classification: Hazardous chemical, flammable, irritant
SARA 313: Not subject to reporting for this compound; methylethylketoxime may be a listed SARA 312 hazard
Right-to-Know Listings: California Proposition 65: methylethylketoxime identified as a carcinogen
Labeling Requirements: Must display relevant hazard and precautionary statements, PPE requirements, and emergency contact details
Other Local Requirements: Follow regional legislation on silane and hazardous organic chemicals for workplace safety and environmental protection; employers hold responsibility for user safety education and reporting where required.
