Polydimethylsiloxane, dihydroxy terminated
- CAS NO.:70131-67-8
- Empirical Formula: HOSi
- Molecular Weight: 45.09284
- MDL number: MFCD00286442
- EINECS: 615-070-3
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-10-31 13:32:20
What is Polydimethylsiloxane, dihydroxy terminated?
Description
Polydimethylsiloxane, dihydroxy terminated is a non-toxic, optically transparent, inert, flammable silicone-based organic polymer. It is widely used in heat-resistant lubricants, flame retardants, medical devices, and cosmetics. Polydimethylsiloxane is hydrophobic, cytocompatible and viscoelastic and can be used for water-repellent coatings in the textile industry.
Chemical properties
Silanol Terminated Polydimethylsiloxane is a silicon-basedorganic polymer that is nontoxic, optically clear, inert, and inflammablematerial. It is widely used in heat-resistant lubricants, fire retardants,medical devices, and cosmetics. Polydimethylsiloxane is hydrophobic,cytocompatible, and viscoelastic which can be used to prepare water-repellentcoatings in the textile industry.
The Uses of Polydimethylsiloxane, dihydroxy terminated
Polydimethylsiloxane is frequently used in a liquid containing 4-5% silica gel, emulsifiers and preservatives. It is employed in applications like contact lenses, medical devices, elastomers, in shampoos, food (antifoaming agent), caulking, lubricants, kinetic sand , and heat-resistant tiles. PDMS is a common surfactant, component of defoamers and as an herbicidal penetran.
Background
Silanol is an FDA-approved food contact substance that is commonly used in organosilicon chemistry and silicate mineralogy.
Metabolism
Not Available
Properties of Polydimethylsiloxane, dihydroxy terminated
Melting point: | <-60°C |
Boiling point: | 182 °C |
Density | 0.98 g/mL at 25 °C |
refractive index | n |
Flash point: | 155 °F |
storage temp. | 2-8°C |
form | Liquid |
Specific Gravity | 0.97 |
Water Solubility | Soluble in carbon tetrachloride, benzene, chloroform, diethyl ether, toluene and other organic solvents. Insoluble in water and ethanol. |
InChI | InChI=1S/HOSi/c1-2/h1H |
EPA Substance Registry System | Hydroxy-terminated dimethyl siloxanes and silicones (70131-67-8) |
Safety information for Polydimethylsiloxane, dihydroxy terminated
Computed Descriptors for Polydimethylsiloxane, dihydroxy terminated
InChIKey | XQSFXFQDJCDXDT-UHFFFAOYSA-N |
SMILES | [Si]O[H] |
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