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Polydimethylsiloxane, dihydroxy terminated

Polydimethylsiloxane, dihydroxy terminated structure

CAS No:
70131-67-8
Formula:
HOSi
Chemical 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
Categories:
Cosmetic Ingredient > Antifoaming

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.

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.

Polydimethylsiloxane, dihydroxy terminated Basic Attributes

Molecular Weight：

45.09284

Exact Mass：

92.03000

EC Number：

615-070-3

TSCA：

TSCA listed

Characteristics

PSA：

20.2

XLogP3：

0.00000

Appearance：

Liquid

Density：

0.98 g/mL at 25 °C

Melting Point：

<-60°C

Boiling Point：

182 °C

Flash Point：

155 °F

Refractive Index：

n20/D1.406

Water Solubility：

Soluble in carbon tetrachloride, benzene, chloroform, diethyl ether, toluene and other organic solvents. Insoluble in water and ethanol.

Storage Conditions：

2-8°C

Critical Temperature & Pressure：

2-8°C

Safety Information

Transport codes：

NONH for all modes of transport

wgk germany：

hazard class code：

safety instructions：

23-24/25-36-26

RTECS Number：

VW3157812

Marks：

Precautionary statement(s)：

P273, P501

Hazard Statements：

36/37/38

Polydimethylsiloxane, dihydroxy terminated Use and Manufacturing

Widely used in the finishing of synthetic fibers, silk, cotton and other fibers and fabrics

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.

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Octamethyltrisiloxane Formula

107-51-7
1-Hexanol Formula

111-27-3
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Guide of Polydimethylsiloxane, dihydroxy terminated

Description
Basic Attributes
Characteristics
Safety Information
Use and Manufacturing
Recommended Suppliers
Learn More Other Chemicals

Polydimethylsiloxane, dihydroxy terminated

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