Product Name: Polyether Modified Silicone Oil
Chemical Family: Silicone-polyether copolymer
Uses: Surface additive, wetting agent, lubricant in industrial applications
Manufacturer Information: Manufacturer name, address, telephone, emergency contact details
CAS Number: Multiple, depending on formulation, often 68937-54-2 or similar
Synonyms: Silicone Polyether, Polyoxyethylene-Polyoxypropylene-Siloxane
GHS Classification: Not classified as hazardous under current GHS criteria for most grades
Physical Hazards: Combustible at elevated temperatures
Health Hazards: May cause mild eye irritation, mild skin irritation in rare cases; inhalation of vapor or mist can irritate respiratory tract
Environmental Hazards: Not expected to be acutely hazardous; releases can still impact aquatic environments due to persistence of silicones
Precautionary Statements: Avoid eye and skin contact, avoid inhaling spray or mist, keep away from flames and hot surfaces
Signal Word: None typically required, as most finishes are not acutely toxic, but “Caution” advisable for bulk handling
Main Components: Polyether modified polydimethylsiloxane (85–99%)
Polyether Content: 1-15%, varies with application
Possible Impurities: Byproducts from synthesis, unreacted starting materials in trace amounts
Other Additives: May contain stabilizers or trace solvents in some commercial blends
Exposure Limits: No established national exposure limits for main ingredients
Inhalation: Move to fresh air, monitor breathing, seek medical attention if discomfort persists
Eye Contact: Rinse with plenty of water for several minutes, remove contact lenses, continue flushing, seek help if irritation holds
Skin Contact: Remove contaminated clothing, wash thoroughly with soap and water, seek care if rash or irritation develops
Ingestion: Rinse mouth, drink water if conscious, do not induce vomiting, consult physician if large quantity swallowed
Notes to Physician: Treat symptomatically, ensure supportive care as required
Suitable Extinguishing Media: Water spray, dry chemical, foam, carbon dioxide
Hazardous Combustion Products: Carbon oxides, silicon oxides, formaldehyde, traces of other organic vapors
Special Protective Equipment: Self-contained breathing apparatus and full protective gear recommended
Fire/Explosion Hazard: Product can form flammable mixtures when heated above flash point; vapors heavier than air may travel to ignition sources
Firefighting Instructions: Use water spray to cool containers, keep away from runoff to sewers or open water
Personal Precautions: Wear suitable protective equipment; prevent skin and eye contact, ventilate area
Environmental Precautions: Prevent spills from reaching waterways, sewers, or soil; collect all waste for disposal
Containment: Stop leak if safe, use absorbent materials such as sand or vermiculite
Cleanup Procedures: Collect spillage into suitable containers, wash surface with water and detergent
Disposal: Dispose in accordance with local, regional, national regulations
Safe Handling: Avoid inhaling vapors, avoid contact with skin and eyes, employ good industrial hygiene habits
Storage Conditions: Store in original, tightly closed containers in cool, dry place away from strong oxidizers and extreme heat
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Safe Storage Practices: Keep away from ignition sources; ensure adequate ventilation; prevent static discharge
Specific Handling Procedures: Use only with proper ventilation; avoid release to environment
Exposure Limits: Not established for product; observe limits for nuisance dust when handling as aerosol
Engineering Controls: Use local exhaust ventilation for spray or aerosol generation, maintain general ventilation
Personal Protective Equipment: Chemical resistant gloves (nitrile or neoprene), safety goggles, chemical apron for bulk handling
Respiratory Protection: NIOSH/MSHA approved respirators during aerosol or mist formation
Hygiene Measures: Wash hands after use, remove contaminated clothing and wash before reuse
Appearance: Clear to slightly hazy liquid, viscosity varies from 50 to 1000 cSt, colorless to pale yellow
Odor: Mild, characteristic silicone odor
Boiling Point: Above 100°C, exact value depends on formulation
Melting Point: Not applicable (liquid at ambient temperature)
Flash Point: Typically above 150°C (closed cup)
Solubility: Dispersible or partly soluble in water (due to polyether chain)
Density: Approximately 1.0 g/cm³
pH: Neutral (6–8 at 1% in water)
Vapor Pressure: Very low at room temperature
Partition Coefficient (Log Kow): High due to silicone backbone, varies with polyether content
Evaporation Rate: Slow
Chemical Stability: Stable under normal storage and use conditions
Conditions to Avoid: Excessive heat, open flame, strong acids, alkalis, oxidizers
Incompatible Materials: Strong acids, alkalis, oxidizing agents trigger breakdown
Hazardous Decomposition Products: Carbon monoxide, carbon dioxide, silicon oxides, formaldehyde at high temperatures
Polymerization: Does not occur under normal conditions
Acute Toxicity: No acute toxicity identified for main product components via oral, dermal, or inhalation routes under normal use
Skin Contact: May trigger mild irritation, rarely causes allergic reaction
Eye Contact: May lead to temporary eye irritation
Chronic Effects: No known chronic health risks for normal occupational exposure
Carcinogenicity: Not listed as carcinogen by IARC, NTP, OSHA
Sensitization: Unlikely under recommended use, no known sensitizing potential
Other Health Effects: Extended contact with eyes or skin, or inhalation of mist, may cause discomfort
Aquatic Toxicity: Not highly toxic, but silicone oils can cause long-term harms to aquatic ecosystems
Persistence and Degradability: Siloxane backbone resists biodegradation, building up in environment over time
Bioaccumulation Potential: High for some silicone oils; polyether groups modestly reduce this tendency
Mobility in Soil: Low; product tends to bind to soil and sediment
Other Adverse Effects: Avoid uncontrolled releases, especially near water bodies
Waste Disposal: Treat as industrial chemical waste, incinerate or landfill according to official regulations
Container Disposal: Empty containers should be disposed by proper authorities; do not reuse
Disposal Restrictions: Never pour into drains, waterways, or soil
Special Considerations: Coordinate with local waste disposal contractors familiar with silicone waste
UN Number: Not assigned for most types
Proper Shipping Name: Not regulated under ADR, IMDG, or IATA for majority of formulations
Hazard Class: Not classified as hazardous for ground/sea/air transport under normal packaging
Packing Group: Not applicable
Marine Pollutant: Not typically restricted, though uncontained releases can damage aquatic life
Special Transport Notes: Secure loads to prevent leaks or tipping, protect from extremes of heat
OSHA: Not classified as hazardous under US OSHA Hazard Communication Standard
TSCA: Listed under US Toxic Substances Control Act
REACH: Pre-registered or registered for many grades in the EU
Other Regulations: Referenced in inventories for Japan (ENCS), Canada (DSL), Australia (AICS), China (IECSC)
SARA Title III: Not listed as reportable substance
California Proposition 65: Not listed as a regulated toxin
WHMIS (Canada): Not controlled under WHMIS classification
