Names | |
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IUPAC name
poly(dimethylsiloxane)
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Other names
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Identifiers | |
3D model (JSmol)
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ChemSpider |
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ECHA InfoCard | 100.126.442 |
E number | E900 (glazing agents, ...) |
UNII | |
CompTox Dashboard (EPA)
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Properties | |
CH3[Si(CH3)2O]nSi(CH3)3 | |
Density | 0.965 g/cm3 |
Melting point | N/A, vitrifies |
Boiling point | N/A, vitrifies |
Pharmacology | |
P03AX05 (WHO) | |
Hazards | |
NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Polydimethylsiloxane (PDMS), also known as dimethylpolysiloxane or dimethicone, is a silicone polymer with a wide variety of uses, from cosmetics to industrial lubrication and passive daytime radiative cooling.[1][2][3]
It is particularly known for its unusual rheological (or flow) properties. PDMS is optically clear and, in general, inert, non-toxic, and non-flammable. It is one of several types of silicone oil (polymerized siloxane). Its applications range from contact lenses and medical devices to elastomers; it is also present in shampoos (as it makes hair shiny and slippery), food (antifoaming agent), caulk, lubricants and heat-resistant tiles.