Formula: | Varies depending on compound (general formula: [R₂SiO]ₙ, where R = organic group such as methyl, phenyl, vinyl) |
CAS Number: | Varies (e.g., PDMS: 63148-62-9) |
EC Number (EINECS): | Not applicable (mixtures/varies by grade) |
HS Code: | 39100000 (Silicones in primary forms) |
UN Number: | Not classified as hazardous for transport (varies by type) |
IUPAC Name: | Polysiloxanes (general class) |
Also Known As: | Silicones; Polysiloxanes; Silicone Fluids; Silicone Elastomers; Silicone Resins |
Molecular Weight, g/mol: | Variable (depends on polymer chain length) |
Appearance: | Clear, colorless to slightly hazy liquid / elastomer / resin (depending on grade) |
Odor: | Odorless to slight characteristic |
Flash Point, °C: | >300 (for fluids) |
Solubility: | Insoluble in water; soluble in many organic solvents |
Purity, %: | ≥99 (depending on grade) |
Grades Available: | Fluids, Emulsions, Elastomers, Resins, Oils, Greases |
Packaging: | 200kg drums, 1000kg IBCs, bulk tanks, custom packs |
Primary Applications
Base fluid for lubricants, release agents, and hydraulic fluids
Used in sealants, adhesives, coatings, and water repellents
Electrical insulation and dielectric fluids
Secondary Applications
Personal care and cosmetics (hair conditioners, skin lotions, creams)
Medical devices, pharmaceuticals, and healthcare products
Automotive (polishes, lubricants, protective coatings)
Construction (waterproofing, sealants)
End Industries Served: Automotive, Aerospace, Electronics, Construction, Personal Care, Medical, Textiles, Lubricants, Oil & Gas
Hazard Class (GHS): Not classified as hazardous (general grades); may vary by formulation
Hazard Statements (H-Codes):
Generally non-hazardous, though some formulations may cause skin/eye irritation
Precautionary Statements (P-Codes):
P280: Wear protective gloves/eye protection
P261: Avoid breathing vapors/aerosols in case of sprayable grades
P305 + P351 + P338: IF IN EYES – rinse cautiously with water
Storage Conditions
Store in original, tightly sealed containers
Protect from moisture and extreme heat
Keep in cool, dry, ventilated place
Transport Information
ADR/RID: Not classified as dangerous goods
IMDG: Not classified as dangerous goods
IATA: Not classified as dangerous goods