ChemicalBook >> CAS DataBase List >>Polydimethylsiloxane, dihydroxy terminated
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
- Molecular Weight:
- 45.09284
- MDL Number:
- MFCD00286442
- MOL File:
- 70131-67-8.mol
Last updated:2024-04-18 16:24:11
| Melting point | <-60°C |
|---|---|
| Boiling point | 182 °C |
| Density | 0.98 g/mL at 25 °C |
| refractive index |
n |
| 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) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H319 | |||||||||
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 23-24/25-36-26 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | VW3157812 | |||||||||
| TSCA | Yes | |||||||||
| NFPA 704 |
|
Polydimethylsiloxane, dihydroxy terminated price More Price(16)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 432989 | Poly(dimethylsiloxane), hydroxy terminated viscosity 2550-3570cSt | 70131-67-8 | 100ml | $50.8 | 2023-06-20 | Buy |
| Sigma-Aldrich | 432989 | Poly(dimethylsiloxane), hydroxy terminated viscosity 2550-3570cSt | 70131-67-8 | 500ml | $183 | 2023-06-20 | Buy |
| Alfa Aesar | 043769 | Polydimethylsiloxane, hydroxy terminated, M.W. 4200 | 70131-67-8 | 1L | $190 | 2024-03-01 | Buy |
| Alfa Aesar | 043769 | Polydimethylsiloxane, hydroxy terminated, M.W. 4200 | 70131-67-8 | 2.5L | $438 | 2024-03-01 | Buy |
| Sigma-Aldrich | 482161 | Poly(dimethylsiloxane), hydroxy terminated viscosity 3,500 cSt | 70131-67-8 | 250ml | $274 | 2024-03-01 | Buy |
Polydimethylsiloxane, dihydroxy terminated Chemical Properties,Uses,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.
Polydimethylsiloxane, dihydroxy terminated Preparation Products And Raw materials
Raw materials
Preparation Products
Global( 173)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | info@dycnchem.com | CHINA | 52867 | 58 |
| Wuhan Kemi-Works Chemical Co., Ltd. | +86-2785736489 +8618171418573 | sales@kemiworks.com | China | 704 | 58 |
| Univar Solutions(China) Co., Ltd. | +8615902132654 | ivy.zhuang@univarsolutions.com | China | 654 | 58 |
| Iota silicone oil (Anhui) Co.,ltd. | +86-15255260163 | sales05@siliconeoil.net | China | 311 | 58 |
| Wuhan Bright Chemical Co., Ltd | +86-02785804899 +86-15071395570 | alice@brightchemical.com.cn | China | 93 | 58 |
| Dongguan City Betterly New Materials co.,Ltd | +86-13713468294 +86-13535083564 | waimaobu@betely.com | China | 37 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12456 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 | peter@yan-xi.com | China | 5993 | 58 |
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 +86-17331933971 | deasea125996@gmail.com | China | 2503 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 16805 | 58 |
View Lastest Price from Polydimethylsiloxane, dihydroxy terminated manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-04-19 | SILANOL TERMINATED POLYDIMETHYLSILOXANE
70131-67-8
|
US $1.00 / KG | 1KG | 99.91% | 200000 | Ouhuang Engineering Materials (Hubei) Co., Ltd | |
 |
2023-12-24 | Polydimethylsiloxane, dihydroxy terminated
70131-67-8
|
US $50.00-1.00 / KG | 1KG | 99% | g-kg-tons, free sample is available | Henan Fengda Chemical Co., Ltd | |
 |
2023-11-01 | SILANOL TERMINATED POLYDIMETHYLSILOXANE
70131-67-8
|
US $20.00-1.00 / kg | 1kg | 0.99 | 20 tons | Hebei Yanxi Chemical Co., Ltd. |
-
- SILANOL TERMINATED POLYDIMETHYLSILOXANE
70131-67-8
- US $1.00 / KG
- 99.91%
- Ouhuang Engineering Materials (Hubei) Co., Ltd
-
- Polydimethylsiloxane, dihydroxy terminated
70131-67-8
- US $50.00-1.00 / KG
- 99%
- Henan Fengda Chemical Co., Ltd
-
- SILANOL TERMINATED POLYDIMETHYLSILOXANE
70131-67-8
- US $20.00-1.00 / kg
- 0.99
- Hebei Yanxi Chemical Co., Ltd.
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