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Material Safety Data Sheet: Amino Silane in Alcohol Solution

Identification

Product Name: Amino Silane in Alcohol Solution
Chemical Family: Organosilane
Synonyms: Aminopropyltriethoxysilane in Ethanol
Company Identification: Manufacturer’s name, Address, Emergency contact phone number
Product Use: Surface treatment, adhesion promoter, silane coupling agent
CAS Number: 919-30-2 (Aminopropyltriethoxysilane), 64-17-5 (Ethanol)
UN Number: 1170

Hazard Identification

Classification: Flammable liquid category 2, Skin irritation category 2, Eye irritation category 2, Specific target organ toxicity – single exposure category 3
GHS Symbols: Flame, Exclamation mark
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor, Causes skin irritation, Causes serious eye irritation, May cause respiratory irritation
Precautionary Statements: Keep away from ignition sources, Use non-sparking tools, Wear protective gloves and eyewear, Avoid breathing mist, Ensure ventilation, Wash hands thoroughly after handling

Composition / Information on Ingredients

Chemical Name: 3-Aminopropyltriethoxysilane
Concentration: 5–30%
CAS Number: 919-30-2
Chemical Name: Ethanol
Concentration: 70–95%
CAS Number: 64-17-5

First Aid Measures

Inhalation: Take the person to fresh air, monitor for breathing difficulties, seek medical advice if symptoms persist
Eye Contact: Rinse for several minutes with gentle water flow, remove contact lenses if present, keep rinsing, seek immediate medical attention
Skin Contact: Wash thoroughly with soap and water, remove contaminated clothing, seek medical advice if irritation develops
Ingestion: Rinse mouth, do not induce vomiting, never give anything by mouth to an unconscious person, seek medical attention
Symptoms: Coughing, sore throat, headache, dizziness, redness, or discomfort on exposure

Fire-Fighting Measures

Suitable Extinguishing Media: Carbon dioxide, dry chemical, alcohol-resistant foam
Unsuitable Media: Straight water streams may spread fire
Specific Hazards: Vapors can form explosive mixture with air, fire produces toxic fumes including carbon oxides and silicon oxides
Protective Equipment: Wear self-contained breathing apparatus, full protective gear
Precautions: Evacuate area, stay upwind, cool tanks with water spray, avoid runoff into sewers

Accidental Release Measures

Personal Precautions: Keep away from heat and open flames, ventilate area, use personal protective equipment including gloves and goggles
Environmental Precautions: Prevent from entering drains, sewers, waterways, soil contamination
Cleanup Methods: Contain spill with absorbent material (sand, vermiculite), collect and place in suitable container for disposal, clean area with water and detergent, dispose of waste properly

Handling and Storage

Handling: Avoid inhaling vapors or mists, prevent contact with skin and eyes, use spark-proof tools and explosion-proof equipment, ground all containers, handle in well-ventilated areas, do not smoke near storage/use
Storage: Store in tightly closed, properly labeled containers, keep in a cool, ventilated place away from direct sunlight and incompatible substances (acids, oxidizers), keep away from food and drink, store at temperatures below 30°C, segregate from oxidizing agents, use only containers and piping systems compatible with alcohol and silane chemicals

Exposure Controls and Personal Protection

Occupational Exposure Limits: Ethanol (ACGIH TLV: 1000 ppm), No established limit for Aminopropyltriethoxysilane
Engineering Controls: Ensure adequate ventilation, use fume hood or local exhaust
Personal Protective Equipment: Wear nitrile or neoprene gloves, safety goggles or face shield, flame-resistant lab coat, respiratory protection where vapor exceeds exposure limits
Hygiene Measures: Wash hands after use, avoid eating, drinking, or smoking during handling, remove contaminated clothing for cleaning before reuse

Physical and Chemical Properties

Appearance: Clear to slightly hazy liquid
Odor: Alcohol-like, pungent
Odor Threshold: Not established
pH: 9–11 (aqueous solution)
Melting/Freezing Point: Below −100°C
Boiling Point: 78°C (ethanol base)
Flash Point: 14°C (closed cup, ethanol)
Evaporation Rate: Similar to ethanol
Flammability: Highly flammable
Vapor Pressure: 60 mmHg at 20°C (ethanol)
Vapor Density: Heavier than air (ethanol 1.6)
Relative Density: 0.85–0.93 g/cm³
Solubility: Miscible in water and organic solvents
Partition Coefficient (n-octanol/water): Not available
Auto-ignition Temperature: 363°C
Decomposition Temperature: Not specified
Viscosity: Low

Stability and Reactivity

Chemical Stability: Typically stable under recommended storage conditions
Reactivity: Can react with oxidizing agents, acids, moisture leads to hydrolysis
Conditions to Avoid: Heat, sparks, open flames, static discharge, contact with incompatible chemicals
Hazardous Decomposition Products: Carbon oxides, silicon oxides, nitrogen oxides
Polymerization: Hazardous polymerization not expected under normal conditions

Toxicological Information

Acute Toxicity: Ethanol oral LD50 (rat): 7060 mg/kg, 3-Aminopropyltriethoxysilane oral LD50 (rat): 1780 mg/kg
Irritation: Causes moderate to severe eye and skin irritation
Respiratory Effects: Vapors may cause coughing, sore throat, and dizziness
Chronic Effects: Prolonged skin contact may cause dermatitis, long-term inhalation could affect liver and central nervous system
Sensitization: May cause skin and respiratory sensitization in some individuals
Carcinogenicity: Ethanol classified by IARC as Group 1 (carcinogenic to humans) in alcoholic beverage consumption; not relevant in industrial use

Ecological Information

Ecotoxicity: Toxic to aquatic life in concentrated form, can affect micro-organisms
Persistence and Degradability: Ethanol biodegradable, silane component hydrolyzes and may degrade slowly
Bioaccumulation Potential: Low biomagnification risk
Mobility in Soil: High, likely to spread in water
Other Adverse Effects: Large spills can lower oxygen content in water and cause fish kill events

Disposal Considerations

Disposal Methods: Dispose of in accordance with local, regional, and national regulations, classified as hazardous waste, incineration preferred for large amounts, small residues may be treated as solvent waste
Contaminated Packaging: Triple rinse and deliver to hazardous waste disposal firm, do not reuse empty containers
Precautions: Do not discharge into sewage, surface, or ground waters

Transport Information

UN Number: 1170
Proper Shipping Name: Ethanol solution
Transport Hazard Class: 3 (Flammable liquid)
Packing Group: II
Labels: Flammable liquid
Special Precautions: Avoid physical damage to containers, keep away from heat sources during transit

Regulatory Information

OSHA: Hazardous as defined by OSHA’s Hazard Communication Standard
TSCA: All ingredients listed
SARA 313: Not listed
CERCLA: Not regulated as a hazardous substance
REACH Status: Registered for use within EU countries
WHMIS Classification (Canada): Class B2 Flammable liquid, Class D2B Toxic
Other Regulations: Compliant with UN GHS, subject to local workplace and environmental laws