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Polydimethylsiloxane, dihydroxy terminated

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Polydimethylsiloxane, dihydroxy terminated Basic information

Product Name:
Polydimethylsiloxane, dihydroxy terminated
Synonyms:
  • SILICON PS 347.5
  • SILANOL TERMINATED POLYDIMETHYLSILOXANE
  • SILANOL TERMINATED POLYDIMETHYLSILOXANE,18000CS
  • SILANOL TERMINATED POLYDIMETHYLSILOXANES
  • PS 347.5
  • POLYDIMETHYLSILOXANE, DIHYDROXY TERMINATED
  • POLYDIMETHYLSILOXANE, SILANOL TERMINATED
  • baysilonc0.7
CAS:
70131-67-8
MF:
HOSi
MW:
45.09284
EINECS:
615-070-3
Product Categories:
  • PDMS Elastomers/ResinsPolymer Science
  • Polysiloxanes
  • Self Assembly&Contact Printing
  • Silicones
  • Stamps for Nanoprint Lithography&Microcontact Printing
  • Polymer Science
Mol File:
70131-67-8.mol
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Polydimethylsiloxane, dihydroxy terminated Chemical Properties

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
InChIKey
XQSFXFQDJCDXDT-UHFFFAOYSA-N
SMILES
[Si]O[H]
EPA Substance Registry System
Hydroxy-terminated dimethyl siloxanes and silicones (70131-67-8)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
23-24/25-36-26
WGK Germany 
1
RTECS 
VW3157812
TSCA 
Yes
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Polydimethylsiloxane, dihydroxy terminated Usage And Synthesis

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.

Uses

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.

Polydimethylsiloxane, dihydroxy terminated Preparation Products And Raw materials

Raw materials

Polydimethylsiloxane, dihydroxy terminatedSupplier

J & K SCIENTIFIC LTD.
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Alfa Aesar
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BeiJing Hwrk Chemicals Limted
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Energy Chemical
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