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

Toxics Screening Level

The initial threshold screening level (ITSL) for hydroxyl-terminated dimethyl siloxanes and siliconesremains at 0.1 μg/m3 based on an annual averaging time.

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

Tel: 0531-88779682 13655318696
Email: 2627877452@qq.com
Country: China
ProdList: 58
Advantage: 58

J & K SCIENTIFIC LTD.

Tel: 010-82848833 400-666-7788
Fax: 86-10-82849933
Email: jkinfo@jkchemical.com
Country: China
ProdList: 96815
Advantage: 76

Meryer (Shanghai) Chemical Technology Co., Ltd.

Tel: 021-61259108 18621169109
Fax: 86-21-61259102
Email: market03@meryer.com
Country: China
ProdList: 40228
Advantage: 62

Alfa Aesar

Tel: 400-6106006
Fax: 021-67582001/03/05
Email: saleschina@alfa-asia.com
Country: China
ProdList: 30123
Advantage: 84

Beijing HwrkChemical Technology Co., Ltd

Tel: 010-89508211 18501085097
Fax: 010-89508210
Email: sales.bj@hwrkchemical.com
Country: China
ProdList: 8418
Advantage: 55

Energy Chemical

Tel: 021-021-58432009 400-005-6266
Fax: 021-58436166
Email: sales8178@energy-chemical.com
Country: China
ProdList: 44689
Advantage: 61

Tianjin heowns Biochemical Technology Co., Ltd.

Tel: 400 638 7771
Email: sales@heowns.com
Country: China
ProdList: 14435
Advantage: 57

Sinopharm Chemical Reagent Co,Ltd.

Tel: 86-21-63210123
Fax: 86-21-63290778 86-21-63218885
Email: sj_scrc@sinopharm.com
Country: China
ProdList: 9815
Advantage: 79

Wuhan Kemi-Works Chemical Co., Ltd

Tel: 027-85736489
Fax: 86-27-85736485
Email: info@kemiworks.net
Country: China
ProdList: 540
Advantage: 57

ZhengZhou HuaWen Chemical Co.Ltd

Tel: 0370-2785118 17550508557
Fax: QQ：3470079902
Email: 675141927@qq.com
Country: China
ProdList: 3203
Advantage: 55

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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:

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