Polymethylhydrosiloxane
- CAS No.
- 9004-73-3
- Chemical Name:
- Polymethylhydrosiloxane
- Synonyms
- PMHS;JACS-9004-73-3;METHYLPOLYSILOXANEOIL;Polydimethylhydrosiloxan;POLYMETHYLHYDROSILOXANES;Poly[oxy(methylsilylene)];METHYLHYDROGENSILOXAN POLYMER;methylhydrosiloxane homopolymer;Methyl hydrogen polysiloxane~PMHS;Polymethylhydrosiloxane 9004-73-3
- CBNumber:
- CB3694969
- Molecular Formula:
- C5H11OSi*
- Molecular Weight:
- 115.22574
- MOL File:
- 9004-73-3.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/9/1 17:37:15
| Boiling point | >177 °C(lit.) |
|---|---|
| Density | 1.006 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | 250 °F |
| solubility | most ethereal, chlorinated, or hydrocarbon solvents as well as EtOH, i-PrOH, warm DMF, and warm NMP; insoluble in MeOH, DMSO, acetonitrile, and water. |
| form | Viscous Liquid |
| color | Clear colorless |
| Water Solubility | PRACTICALLY INSOLUBLE |
| Sensitive | Moisture Sensitive |
| CAS DataBase Reference | 9004-73-3(CAS DataBase Reference) |
| EPA Substance Registry System | Poly[oxy(methylsilylene)] (9004-73-3) |
SAFETY
Risk and Safety Statements
| Hazard Codes | Xi | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Risk Statements | 10-36/37/38 | |||||||||
| Safety Statements | 23-24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| HS Code | 39100000 | |||||||||
| NFPA 704 |
|
Polymethylhydrosiloxane Chemical Properties,Uses,Production
Chemical Properties
clear colorless viscous liquid
Physical properties
colorless free flowing liquid; average molecular weight 1500-2200 g mol?1 (supplier dependent); effective mass per hydride of 60 g mol?1; d = 1.006.
Uses
Polymethylhydrosiloxane (PMHS) is an easily handled, inexpensive, non-toxic, and mild reducing agent. Although relatively inert towards organic functionality, PMHS can transfer its hydride to a variety of metal catalysts (including Sn, Ti, Zn, Cu, and Pd) which can then participate in a wide range of reductions. Alternatively, when made hypercoordinate by the action of fluoride or other nucleophiles, PMHS can act directly as a reducing agent. Polymethylhydrosiloxane is widely used as reducing agent often used in conjunction with metal catalysts or nucleophilic activators.
Preparation
hydrolysis of methyldichlorosilane followed by heating (60–150 °C) the resultant mixture of cyclic silanes in the presence of hexamethyldisiloxane generates the linear polysiloxane.
Polymethylhydrosiloxane Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| CHEMSWORTH | +91-261-2397244 | New Delhi, India | 6707 | 30 | Inquiry |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | China | 12452 | 58 | Inquiry |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | China | 21669 | 55 | Inquiry |
| Hangzhou FandaChem Co.,Ltd. | 008657128800458; +8615858145714 | China | 9336 | 55 | Inquiry |
| Tianjin Zhongxin Chemtech Co., Ltd. | +86-022-66880623 +8618622897568 | China | 562 | 58 | Inquiry |
| career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29896 | 58 | Inquiry |
| Hebei Guanlang Biotechnology Co., Ltd. | +86-19930503282 | China | 8822 | 58 | Inquiry |
| Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49391 | 58 | Inquiry |
| Shaanxi Dideu Medichem Co. Ltd | 18192627656 | China | 2788 | 58 | Inquiry |
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