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HomeProduct name listPolydimethylsiloxane, dihydroxy terminated

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
Polydimethylsiloxane, dihydroxy terminated Structural

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  n20/D 1.406
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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