Chemical Product Library / Reference
Polydimethylsiloxane
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Polydimethylsiloxane |
|---|---|
| English synonyms | PDMS;Dimethicone;Silicone oil |
| Chinese name | 聚二甲基硅氧烷 |
| Chinese synonyms | 二甲基硅油;硅油;PDMS |
| Chemical category | Silicones |
| CAS No. | 63148-62-9 |
| EINECS No. | Not provided |
| Molecular formula | (C2H6OSi)n |
| Molecular weight | Not provided |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Viscosity according to grade (e.g. 100–1000000 cSt at 25°C); volatile matter ≤1.0%; refractive index 1.400–1.410
Performance characteristics
Colorless transparent viscous liquid, excellent water repellency, lubricity and thermal stability
Application scenarios
Cosmetics, personal care, antifoam, release agent, lubricant, textile finishing, electrical insulation