Product Name: 3-(Diethoxymethylsilyl)Propyl Methacrylate
Chemical Formula: C13H26O5Si
CAS Number: 14513-34-9
EC Number: 238-532-1
Synonyms: Methacryloyloxypropylmethyl diethoxysilane
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Recommended Use: Surface modifying agent, coupling agent
Classification: Flammable liquid (Category 3), Skin irritant (Category 2), Eye irritant (Category 2A), Specific target organ toxicity (single exposure, Category 3)
Signal Word: Warning
Hazard Statements: Causes skin irritation, causes serious eye irritation, may cause respiratory irritation, flammable liquid and vapor
Pictograms: Flame, Exclamation Mark
Precautionary Statements: Keep away from heat/sparks/open flames, avoid breathing vapors, wash skin thoroughly after handling, use only outdoors or in well-ventilated areas, wear protective gloves and eye protection
Potential Health Effects: Inhalation may lead to dizziness, drowsiness, or respiratory discomfort. Skin contact often leaves redness or dryness. Eye contact can cause pain and irritation. Swallowing may lead to gastrointestinal issues.
Chemical Name: 3-(Diethoxymethylsilyl)Propyl Methacrylate
Common Name and Synonyms: Methacryloxypropylmethyl diethoxysilane
CAS Number: 14513-34-9
Concentration: ≥95%
Impurities: Minor traces of unreacted methacrylate or silane-based byproducts
Additives: None indicated
Inhalation: Move person to fresh air, seek medical advice if symptoms persist or worsen, provide oxygen if breathing is difficult
Skin Contact: Remove contaminated clothing, wash exposed area with plenty of water and mild soap, seek medical attention for persistent irritation
Eye Contact: Rinse cautiously with water for several minutes, remove contact lenses if present and easy to do, continue rinsing, consult a physician if irritation continues
Ingestion: Rinse mouth with water, do not induce vomiting, seek immediate medical attention, never give anything by mouth to an unconscious person
Important Symptoms/Effects: Irritation, coughing, headache, dizziness, redness
Immediate Medical Attention Needed: Eye exposure, inhalation of large quantities, signs of severe illness
Suitable Extinguishing Media: Carbon dioxide, dry chemical powder, alcohol-resistant foam
Unsuitable Extinguishing Media: Direct water stream, as it may spread the fire
Specific Hazards: Vapors may form explosive mixtures with air, fire may produce irritating, corrosive, and toxic gases/fumes
Protective Equipment for Firefighters: Wear self-contained breathing apparatus, wear full protective clothing
Special Fire Fighting Procedures: Move containers from fire area if safe, cool with water fog, prevent runoff from fire control from entering water sources
Flammability: Yes, moderate
Personal Precautions: Evacuate unnecessary personnel, provide adequate ventilation, use personal protective equipment including gloves, goggles, and respiratory protection
Environmental Precautions: Prevent entry into drains, waterways, or soil
Spill Containment: Absorb spill with inert material (sand, earth, vermiculite), use non-sparking tools, collect in suitable containers for disposal
Cleaning Methods: Wash away residues with water after material pick-up is complete, ventilate area
Disposal: Dispose in accordance with local, regional, and national regulations
Safe Handling: Work in well-ventilated environment, minimize generation of vapors, avoid contact with skin, eyes, and clothing, use appropriate PPE, keep away from sources of ignition
Storage Conditions: Store in tightly-closed original container, in cool, dry, well-ventilated place, away from incompatible substances like acids, bases, and oxidizers
Incompatibility: Strong acids, strong bases, oxidizing agents
Transfer Precautions: Ground and bond all containers and handling equipment, handle under inert atmosphere if possible
Special Requirements: Maintain adequate ventilation and fire protection systems
Occupational Exposure Limits: No specific limits established for this chemical, observe general exposure guidelines for methacrylates and silanes
Engineering Controls: Local exhaust or general dilution ventilation to keep vapor concentrations below recommended limits
Personal Protective Equipment:
Appearance: Colorless to pale yellow transparent liquid
Odor: Slight, characteristic
Odor Threshold: Not available
pH: Not applicable (non-aqueous)
Melting Point/Freezing Point: No data available
Boiling Point/Range: ~220°C (428°F)
Flash Point: ~93°C (199°F)
Evaporation Rate: Not determined
Flammability: Flammable
Vapor Pressure: Low at room temperature
Vapor Density: Heavier than air
Relative Density: 1.01–1.05 (water = 1)
Solubility: Decomposes in water, soluble in organic solvents
Partition Coefficient (n-octanol/water): Not available
Autoignition Temperature: Not established
Decomposition Temperature: Not determined
Viscosity: Low to moderate
Chemical Stability: Stable under recommended storage conditions
Reactivity: May react with strong oxidizers, acids, and bases, producing heat and flammable gases
Hazardous Polymerization: May occur under uncontrolled polymerization conditions
Conditions to Avoid: Excessive heat, open flame, sparks, direct sunlight, moisture
Incompatible Materials: Strong acids, strong bases, oxidizers
Hazardous Decomposition Products: Methacrylic acid, organic vapors, carbon oxides, silicon oxides
Acute Toxicity: Data for oral, dermal, and inhalation routes are limited, but expected effects include irritation to skin, eyes, and respiratory tract
Skin Corrosion/Irritation: Causes skin irritation
Serious Eye Damage/Irritation: Causes serious eye irritation
Respiratory Sensitization: Inhalation may cause mild to moderate respiratory tract irritation
Skin Sensitization: May cause allergic skin reaction in sensitive individuals
Germ Cell Mutagenicity: No data available
Carcinogenicity: Not classified as carcinogenic by IARC, NTP, or OSHA
Reproductive Toxicity: No reliable studies identified
STOT – Single Exposure: May cause respiratory irritation
STOT – Repeated Exposure: Insufficient data
Aspiration Hazard: No data available
Notable Symptoms: Redness, pain, inflammation, headache, dizziness
Toxicity: Not expected to be acutely toxic to aquatic organisms at low concentrations, but breakdown products may be hazardous
Persistence and Degradability: Expected to degrade, but siloxane residues may persist in environment
Bioaccumulation Potential: Low, based on structure and rapid hydrolysis
Mobility in Soil: Moderate, material may adsorb onto soil particulates
Aquatic Toxicity: Data limited; minimize entry into waterways
Other Adverse Effects: Possible formation of siloxane oligomers in water courses
Waste Treatment Methods: Contact licensed waste disposal company, incinerate under controlled conditions or dispose of according to official regulations
Container Disposal: Triple rinse containers, offer for recycling or reconditioning if possible, otherwise dispose as hazardous waste
Unused Product: Treat as hazardous; avoid direct release to environment or sewer
Specific Regulatory Guidance: Comply with local, state, and federal waste management requirements
Precautions: Wear appropriate PPE to avoid exposure during disposal handling
UN Number: 1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (contains 3-(Diethoxymethylsilyl)Propyl Methacrylate)
Transport Hazard Class: 3
Packing Group: III
Environmental Hazards: Not classified as marine pollutant
Special Precautions for User: Keep upright and well secured, away from sources of ignition
Regulatory References: DOT (US), IMDG, IATA
OSHA Status: Hazardous according to OSHA criteria
SARA Title III Sections 311/312: Fire hazard, immediate health hazard
SARA Title III Section 313: Not subject to reporting requirements
TSCA Inventory: Listed
REACH Status: Pre-registered/registered in the EU
California Proposition 65: Not listed
WHMIS (Canada): Controlled Product, D2B (toxic material causing other toxic effects), B3 (combustible liquid)
Other Local/International Regulation: Observe restrictions as applicable
