polydimethylsiloxanes
Identification
| Name | polydimethylsiloxanes |
| IUPAC | dimethyl-bis(trimethylsilyloxy)silane |
| CAS Number | 63148-62-9 |
| FDA UNII | 9G1ZW13R0G |
| Molecular Formula | C8 H24 O2 Si3 |
| Molecular Weight | 236.53358000 |
| Nikkaji Number | J99.786B |
Regulatory
| FDA/DG SANTE Petitions, Reviews, Notices | FCN 643 |
| DG SANTE Food Contact Materials | polydimethylsiloxane (Mw > 6 800 Da) |
Physical Properties
| Assay | 95.00 to 100.00 |
| Food Chemicals Codex Listed | No |
| Specific Gravity | 0.96300 @ 25.00 °C. |
| Refractive Index | 1.40400 @ 20.00 °C. |
| Flash Point | 600.00 °F. TCC ( 315.56 °C. ) |
| Soluble in | water, 0.002918 mg/L @ 25 °C (est) |
No sensory data available
Safety Information
| Oral/Parenteral Toxicity | oral-guinea pig LD > 10000 mg/kg |
| Dermal Toxicity | skin-rabbit LD > 20 mL/kg |
| Inhalation Toxicity | inhalation-rabbit LC > 978000 mg/m3/7.5 |
GHS Classification
['GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)', 'GHS Label elements, including precautionary statements']
Safety in Use
| Category | indirect food additives: adhesives and components of coatings |
| Recommendation for polydimethylsiloxanes usage levels up to | not for fragrance use. |
| Recommendation for polydimethylsiloxanes flavor usage levels up to | not for flavor use. |
ECSA Chemicals
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Potential Uses
Natural Occurrence
Synonyms
baysilon
dimethyl-bis(trimethylsilyloxy)silane
polydimethylsiloxane (Mw > 6 800 Da)
silicone oil for mp & bp apparatus
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