ChemicalBook > CAS DataBase List > Polydimethylsiloxane, dihydroxy terminated

Polydimethylsiloxane, dihydroxy terminated

Product Name
Polydimethylsiloxane, dihydroxy terminated
CAS No.
70131-67-8
Chemical Name
Polydimethylsiloxane, dihydroxy terminated
Synonyms
Hydroxyl Silicone Oil;rf5000;SILICON PS 347.5;Hydroxyl silicone fluid;ps195;fm0411;ps339.7;q4-2737;PS 347.5;x22-160a
CBNumber
CB4328007
Molecular Formula
HOSi
Formula Weight
45.09284
MOL File
70131-67-8.mol
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Polydimethylsiloxane, dihydroxy terminated Property

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

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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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H319Causes serious eye irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
432989
Product name
Poly(dimethylsiloxane), hydroxy terminated
Purity
viscosity 2550-3570cSt
Packaging
100ml
Price
$50.8
Updated
2023/06/20
Sigma-Aldrich
Product number
432989
Product name
Poly(dimethylsiloxane), hydroxy terminated
Purity
viscosity 2550-3570cSt
Packaging
500ml
Price
$183
Updated
2023/06/20
Alfa Aesar
Product number
043769
Product name
Polydimethylsiloxane, hydroxy terminated, M.W. 4200
Packaging
1L
Price
$190
Updated
2024/03/01
Alfa Aesar
Product number
043769
Product name
Polydimethylsiloxane, hydroxy terminated, M.W. 4200
Packaging
2.5L
Price
$438
Updated
2024/03/01
scipoly
Product number
870
Product name
Polydimethylsiloxane, dihydroxy terminated
Packaging
50g
Price
$58
Updated
2024/07/03
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Polydimethylsiloxane, dihydroxy terminated Chemical Properties,Usage,Production

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.

Solubility in organics

THF, toluene, Insoluble in water

Polydimethylsiloxane, dihydroxy terminated Preparation Products And Raw materials

Raw materials

Octamethylcyclotetrasiloxane Amino-modified silicone oil EMULSIFIER

Preparation Products

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Polydimethylsiloxane, dihydroxy terminated Suppliers

Canada 1 China 169 France 1 Germany 2 India 3 Japan 1 Singapore 1 Switzerland 1 United States 11 Global 191
Jinan Longcheng Silicone Co., Ltd
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View Lastest Price from Polydimethylsiloxane, dihydroxy terminated manufacturers

Hebei Zhuanglai Chemical Trading Co.,Ltd
Product
Polydimethylsiloxane, dihydroxy terminated 70131-67-8
Price
US $55.00/kg
Min. Order
1kg
Purity
99%
Supply Ability
5000kg/week
Release date
2024-06-03
Hebei Weibang Biotechnology Co., Ltd
Product
SILANOL TERMINATED POLYDIMETHYLSILOXANE 70131-67-8
Price
US $10.00-8.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
10 mt
Release date
2024-12-04
Wuhan KEMI-WORKS Chemical Co., Ltd.
Product
SILANOL TERMINATED POLYDIMETHYLSILOXANE 70131-67-8
Price
US $1.00/Kg/Drum
Min. Order
1KG
Purity
Viscosity (25oC,Mpa.s): 25-200000cs
Supply Ability
500mt per month
Release date
2021-09-18

70131-67-8, Polydimethylsiloxane, dihydroxy terminatedRelated Search:

Cupric acetylacetonate Aluminum acetylacetonate 2,4-PENTANEDIONE, SILVER DERIVATIVE TRIS(2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATO)EUROPIUM(III) PHENYLSELENOL N-BUTYLISOCYANIDE DICHLORO(ETHYLENEDIAMINE)PLATINUM(II) Ethyl isocyanoacetate TERT-BUTYL ISOCYANIDE Tris(2,4-pentanedionato)chroMiuM(III) METHYL ISOCYANOACETATE COBALT(II) ACETYLACETONATE SALCOMINE Benzyl isocyanide Ferric acetylacetonate 1,1,3,3-TETRAMETHYLBUTYL ISOCYANIDE Tosylmethyl isocyanide POLY(DIMETHYLSILOXANE), HYDROXY TERMINATED

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