Product Name: Aminosilane Solution
Chemical Family: Organo-functional silane
Common Uses: Adhesion promoter, surface modifier for glass, ceramics, and metals
Manufacturer: Refer to product label or supplier listing
Emergency Contact: Chemtrec (1-800-424-9300, USA)
Synonyms: Gamma-Aminopropyltriethoxysilane, APTES
CAS Number: 919-30-2 (for APTES)
GHS Classification: Skin irritation (Category 2), Eye irritation (Category 2A), Specific target organ toxicity (single exposure, Category 3)
Signal Word: Warning
Hazard Statements: Causes skin and eye irritation; may cause respiratory irritation
Precautionary Statements: Avoid breathing vapors; wash hands after use; wear protective clothing
Pictograms: Exclamation mark symbol
Routes of Entry: Inhalation, skin contact, eye contact, ingestion
Chemical: (3-Aminopropyl)triethoxysilane
Concentration: Typically ranges from 50% to 100% in solution
Impurities: Trace amounts of ethanol and hydrolyzed siloxanes
Other Ingredients: Water or alcohol as a minor component in diluted blends
CAS Numbers: Main aminosilane (919-30-2), Ethanol (64-17-5, if present)
Inhalation: Move to fresh air; seek medical attention if symptoms persist
Skin Contact: Rinse with plenty of soap and water; remove contaminated clothing
Eye Contact: Flush with water for 15 minutes; seek medical attention if pain or redness continues
Ingestion: Rinse mouth; do not induce vomiting; consult physician immediately
Most Important Symptoms: Burning sensation, redness, coughing, difficulty breathing
Suitable Extinguishing Media: Dry chemical, CO2, foam, water spray
Unsuitable Media: Do not use water jets directly against the liquid
Specific Hazards: Flammable vapors may form explosive mixtures with air; combustion yields toxic gases such as nitrogen oxides and silicon oxides
Protective Equipment for Firefighters: Self-contained breathing apparatus and full protective gear
Firefighting Procedures: Isolate hazard area; cool closed containers with water mist from a safe distance
Personal Precautions: Ensure adequate ventilation; wear protective gloves, goggles, and apron
Environmental Precautions: Prevent entry into sewers, waterways, or soil
Containment and Cleanup: Absorb with inert material (sand, earth, or diatomaceous earth); shovel into waste container; ventilate area; wash spill site after material pickup is complete
Reference to Other Sections: See sections on personal protection and disposal considerations for handling waste
Handling: Use in a well-ventilated space; keep away from sources of ignition; avoid contact with skin, eyes, and clothing; do not breathe vapor or mist
Storage: Store in tightly closed containers in a cool, dry, and well-ventilated area, away from direct sunlight and incompatible substances (strong acids and oxidizers); keep container upright to prevent leakage
Storage Temperature: Between 5°C and 35°C
Special Sensitivities: Moisture may cause slow hydrolysis of the product in unopened containers
Exposure Limits: No established OSHA/NIOSH permissible exposure limits for aminosilane, but keep exposure as low as possible following industrial hygiene guidelines
Personal Protective Equipment: Chemical-resistant gloves (nitrile, PVC), safety goggles, lab coat or protective coveralls, suitable respirator for poorly ventilated areas
Engineering Controls: Local exhaust ventilation and eye wash stations
Hygiene Measures: Wash hands and face before breaks and after handling product; avoid eating or drinking in work area
Workplace Practices: Monitor for vapor concentrations in confined areas using standard detection equipment
Appearance: Clear to faintly yellow liquid
Odor: Ammonia-like, strong
pH: Approximately 10 - 12 for water-diluted blends
Melting Point/Freezing Point: Below -70°C
Boiling Point: About 217-219°C for pure aminosilane
Flash Point: 96°C (closed cup)
Evaporation Rate: Moderate compared to water
Vapor Pressure: low at room temperature
Relative Density: 0.95 - 1.03 g/cm³
Solubility in Water: Reacts slowly to form silanol and ethanol; limited solubility
Partition Coefficient (n-octanol/water): Not available
Auto-Ignition Temperature: Above 300°C
Decomposition Temperature: Not specified
Viscosity: Thin, slightly viscous liquid
Chemical Stability: Stable under normal storage and handling conditions
Reactivity: Reacts with water, acids, and oxidizing agents
Hazardous Decomposition Products: Silicon oxides, nitrogen oxides, carbon oxides, alcohols
Polymerization: Does not occur in normal storage and use
Conditions to Avoid: Excessive heat, exposure to moisture, and open flame
Incompatible Materials: Strong acids, strong oxidizers, water (causes hydrolysis and release of ethanol or methanol depending on formulation)
Likely Routes of Exposure: Skin contact, inhalation, eye contact, ingestion
Acute Toxicity: Oral LD50 (rat) above 2000 mg/kg; low toxicity but may irritate mucous membranes
Skin Corrosion/Irritation: Causes irritation, redness, and possible burns
Eye Damage/Irritation: Causes irritation, tearing, and redness
Respiratory or Skin Sensitization: Not identified as a sensitizer under normal conditions
Carcinogenicity: Not listed as a carcinogen by NTP, IARC, or OSHA
Long-term Effects: Repeated or prolonged exposure may lead to dermatitis or sensitization in rare cases
Aquatic Toxicity: Toxic to aquatic organisms at high concentrations; may cause long-term adverse effects in the freshwater and marine environments
Mobility in Soil: Hydrolyzes readily to slightly soluble silanols; low to moderate soil mobility
Persistence and Degradability: Product hydrolyzes with moisture and degrades to non-hazardous inorganic silicon dioxide
Bioaccumulative Potential: Low, due to hydrolysis and rapid breakdown
Other Adverse Effects: Large spills may create film on water surfaces which can harm aquatic life indirectly
Waste Treatment Methods: Dispose of as hazardous organic waste through licensed waste management contractors
Product Disposal: Do not pour into drains, waterways, or on soil
Container Disposal: Triple rinse containers prior to recycling or disposal; follow local, state, and federal regulations
Special Precautions: Solve even minor spills promptly by following site emergency protocols and using approved absorbent materials
UN Number: 1993 (for flammable liquids, n.o.s. when ethanol is present)
DOT Classification: Flammable liquid if diluted in ethanol, otherwise not regulated
Transportation Hazard Class: 3 for flammable versions, Not Regulated for non-flammable
Packing Group: III (for ethanol blends)
Marine Pollutant: Not classified as marine pollutant
Special Precautions: Secure all containers upright and clearly mark with hazard labels, comply with local transportation legislation
Regulatory Listings: Listed on US TSCA, EU REACH, Canada DSL, Australia AICS
SARA 313: Not subject to SARA Title III reporting
RCRA Status: Not a listed hazardous waste, but must be evaluated at the facility level
California Prop 65: No listed ingredients
EU Classification: Xi – Irritant; Risk phrases R36/38, Safety phrases S26, S36/37/39
Label Requirements: Ensure all containers have GHS-compliant labelling with signal and hazard statements
Workplace Classification: Employer must implement employee training and risk assessments under OSHA, WHMIS (Canada), or GHS standards
