9016-00-6

Name Poly(dimethylsiloxane)
CAS 9016-00-6
EINECS(EC#) 226-171-3
Molecular Formula C5H6Si
MDL Number MFCD00148360
Molecular Weight 94.1866
MOL File 9016-00-6.mol
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Chemical Properties

Appearance colourless liquid with a viscosity which
Melting point  -35°C
Boiling point  155-220°C
density  0.971
vapor pressure  5 mm Hg ( 20 °C)
refractive index  1.4035
Fp  63°C
storage temp.  Refrigerator
solubility  Chloroform (Slightly), Methanol (Slightly)
form  Viscous Liquid
color  Colorless
Specific Gravity 0.918
Stability: Stable. Flammable or combustible. Flammability depends upon extent of polymerization. Incompatible with strong oxidizing agents.
Water Solubility  INSOLUBLE
Cosmetics Ingredients Functions SKIN CONDITIONING
ANTIFOAMING
SKIN PROTECTING
SKIN CONDITIONING - EMOLLIENT
InChI 1S/C2H6OSi/c1-4(2)3/h1-2H3
InChIKey SEUDSDUUJXTXSV-UHFFFAOYSA-N
SMILES [Si](=O)(C)C
Surface tension 19mN/m at 20°C
Uses
Silicones are polymeric materials having silicon and oxygen on their composition. They are largely inert compounds usually heat-resistant, nonstick, and rubberlike. Polydimethylsiloxane (PDMS, molecular formula (C2H6OSi)n, density 965 kg/m3, boiling point: < 200℃, shear modulus between 100 kPa and 3 MPa, loss tangent less than 0.001) is a viscoelastic polymer (elastomer). PDMS is widely used in microfluidic technology thanks to some of its unique properties: it is low cost, nontoxic, chemically resistant, and stable against humidity and temperature variations. PDMS also presents low interfacial energy, which allows it to avoid chemical interactions with other polymers and solutions in the microfluidic channels. After polymerization and cross-linking, solid PDMS presents hydrophobic surface. A treatment using plasma oxidation is frequently used to alter the surface chemistry by adding silanol (SiOH) groups to the surface terminations and make the surface hydrophilic (wettable). PDMS is usually used as sealant, structural microchannel material or elastomer stamping matrix in soft lithography techniques like microcontact printing and micromolding.
EPA Substance Registry System Poly[oxy(dimethylsilylene)] (9016-00-6)
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Safety Data

Symbol(GHS)  Flame (GHS02)
GHS02
Signal word  Danger
Hazard statements  H226-H227
Precautionary statements  P210e-P370+P378a-P403+P235-P210-P240-P241-P280a-P303+P361+P353-P501a
Risk Statements 
Safety Statements 
RIDADR  1993
WGK Germany  2
RTECS  TQ2690000
TSCA  Yes
HazardClass  3
HS Code  39100000
Storage Class 10 - Combustible liquids
Hazardous Substances Data 9016-00-6(Hazardous Substances Data)

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