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Poly(methylhydrosiloxane)

Poly(methylhydrosiloxane) Struktur
63148-57-2
CAS-Nr.
63148-57-2
Englisch Name:
Poly(methylhydrosiloxane)
Synonyma:
Methyl Hydrogen Silicone Fluid;Hydrogen silicone oil;Methyl Hydrogen Silicone Oil;Hydrosilicone oil;Methylhydrogensiloxane polymer, PMHS;POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 15-25cs;POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 25-35cs;CFS-F(H);VISCOSITY 85 CST.;Polymethyldrosiloxane
CBNumber:
CB0694968
Summenformel:
C7H22O2Si3
Molgewicht:
222.5
MOL-Datei:
63148-57-2.mol

Poly(methylhydrosiloxane) Eigenschaften

Schmelzpunkt:
<-60°C
Siedepunkt:
142 °C(lit.)
Dichte
1.006 g/mL at 25 °C (lit.)
Dampfdruck
38 hPa (20 °C)
Brechungsindex
n20/D 1.382(lit.)
Flammpunkt:
204 °C
storage temp. 
Store below +30°C.
L?slichkeit
Soluble in most ethereal, chlorinated, or hydrocarbon solvents as well as EtOH, i-PrOH, warm DMF, and warm NMP; insoluble in MeOH, DMSO, acetonitrile, and water
Aggregatzustand
liquid
Wichte
0.98
PH
7 (H2O)
Wasserl?slichkeit
Not miscible or difficult to mix in water.
CAS Datenbank
63148-57-2
EPA chemische Informationen
Siloxanes and Silicones, Me hydrogen (63148-57-2)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xi
R-S?tze: 10-36/37/38
S-S?tze: 26-36-24/25-23-16
WGK Germany  3
10-21
TSCA  Yes
HS Code  39100000
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
H319 Verursacht schwere Augenreizung. Schwere Augenreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P305+P351+P338,P337+P313P
H335 Kann die Atemwege reizen. Spezifische Zielorgan-Toxizit?t (einmalige Exposition) Kategorie 3 (Atemwegsreizung) Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" />
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P302+P352 BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P305+P351+P338 BEI KONTAKT MIT DEN AUGEN: Einige Minuten lang behutsam mit Wasser spülen. Eventuell vorhandene Kontaktlinsen nach M?glichkeit entfernen. Weiter spülen.
P321 Besondere Behandlung
P332+P313 Bei Hautreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen.
P362 Kontaminierte Kleidung ausziehen und vor erneutem Tragen waschen.

Poly(methylhydrosiloxane) Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R10:Entzündlich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S24/25:Berührung mit den Augen und der Haut vermeiden.
S23:Gas/Rauch/Dampf/Aerosol nicht einatmen(geeignete Bezeichnung(en) vom Hersteller anzugeben).
S16:Von Zündquellen fernhalten - Nicht rauchen.

Beschreibung

Poly(methylhydrosiloxane) is a reducing agent. For example, it can be used for the reduction of esters to alcohols as well as the reduction of aldehydes and ketone. It can also be used for the reduction of phosphine oxides to phosphine. Recent study has also used it for conjugate reduction of α, β-Unsaturated Carbonyl and Carboxyl Compounds. Finally, it is also used in greener amine synthesis mediated by reductive amination which is an alternative to borohydrides.

Chemische Eigenschaften

Colorless liquid

Verwenden

Polymethylhydrosiloxane(PMHS) is an easily handled,inexpensive,non-toxic,and mild reducing agent. PMHS is attractive as a substitute for more expensive or hazardous silanes or siloxanes and as the stoichiometric reductant in catalytic organotin-mediated processes. It can be cross linked by metal catalyst at low temperature to form waterproof membrane. It is used as waterproof agent of textile, glass, pottery, paper, leather, metal, cement and marble etc, especially in textile waterproof. It is used as insulator and cross linker of paper. Poly(methylhydrosiloxane) is used in the reduction of esters to alcohols, catalyzed by a combination of titanocene dichloride and either n-BuLi or EtMgBr. It is a safer alternative to triethoxysilane, B22063, for reduction of phosphine oxides to phosphines, catalyzed by Ti(O-i-Pr)4. It is also used in greener amine synthesis by reductive amination as an alternative to borohydrides.

synthetische

Poly(methylhydrosiloxane) is prepared by hydrolysis of methyldichlorosilane followed by heating (60–150℃) the resultant mixture of cyclic silanes in the presence of hexamethyldisiloxane generates the linear polysiloxane.

Allgemeine Beschreibung

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is an environmentally benign reducing agent and has been enhanced for catalytic efficiency. Click here for more information.
Harnessing the reactivity of poly(methylhydrosiloxane) for the reduction and cyclization of biomass to high-value products

Synthese

Poly(methylhydrosiloxane)(PMHS) is synthesized by the controlled hydrolysis of MeSiHCl2[1]
Poly(methylhydrosiloxane) synthesis

Advantages

PMHS is synthesized by the controlled hydrolysis of MeSiHCl2, a byproduct in producing Me2SiCl2, a feedstock for the silicone industry. As a byproduct of the silicone industry, it is a cheap, easy to handle, and environmentally friendly reducing agent. PMHS is more air and moisture-stable than other silanes and can be stored for long periods of time without loss of activity. In addition to being synthesized from a waste product, PMHS is cheap, stable to air and moisture, and is considered nontoxic[2].

Poly(methylhydrosiloxane) Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


Poly(methylhydrosiloxane) Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 328)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Wuhan Kemi-Works Chemical Co., Ltd.
+86-2785736489 +8618171418573
sales@kemiworks.com China 729 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 +86-13713468294
sadie@betely.com China 39 58
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8806 58
Hebei Mujin Biotechnology Co.,Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12831 58
Hebei Weibang Biotechnology Co., Ltd
+8617732866630
bess@weibangbio.com China 18148 58
Hebei Kingfiner Technology Development Co.Ltd
+86-15532196582 +86-15373005021
lisa@kingfinertech.com China 3007 58
Anhui Ruihan Technology Co., Ltd
+8617756083858
daisy@anhuiruihan.com China 973 58
Hebei Zhuanglai Chemical Trading Co.,Ltd
+8613343047651
admin@zlchemi.com China 3692 58
Hebei Mojin Biotechnology Co.,Ltd
+8613288715578
angelia@hbmojin.com China 1175 58

63148-57-2()Verwandte Suche:


  • DOW CORNING 1107 WATER REPELLENT AND POWDER TREATMENT
  • Poly(methylhydrosiloxane)
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 35-45cs
  • Poly(methylhydrosiloxane-co-dimethylsiloxane)
  • Poly(methylhydrosiloxane),Methylhydrogensiloxane polymer, PMHS
  • Poly(methylhydrosiloxane-co-dimethylsiloxane), trimethylsilyl terminated
  • PolyMethylhydrosiloxane, viscosity 30-45 cSt.
  • POLY(METHYLHYDROSILOXANE), TRIMETHYLSILY
  • Polymethylhydrosiloxane, viscosity 25-35 cSt.
  • methylhydrogensiloxane polymer
  • POLYMETHYLHYDROSILOXANE, VISCOSITY 15-25 CST.
  • POLYMETHYLHYDROSILOXANE: VISCOSITY 85 CST.
  • POLYMETHYLHYDROSILOXANE, VISCOSITY 35-45 CST.
  • VISCOSITY 85 CST.
  • PolyMethylhydrosiloxane, viscosity 15-29 cSt.
  • Poly(Methylhydrosiloxane), 15-40 cps
  • Poly(Methylhydrosiloxane) average Mn 1,700-3,200
  • Poly(Methylhydrosiloxane) viscosity 15-40 MPa.s (20 C)
  • Poly(Methylhydrosiloxane), triMethylsilyl terMinated average Mn ~390
  • DK-H202 methyl silicone oil
  • PolyMethylHydrosiloxanes,Trimethylsiloxyterminated
  • Polymethyldrosiloxane
  • polymethylhydrosiloxane, trimethylsilyl terminated, 15-25 cst
  • polymethylhydrosiloxane, trimethylsilyl terminated, 20-35 cst
  • Methylhydro-siliconeoil
  • siloxanesandsilicones,mehydrogen
  • siloxanesandsilicones,methylhydrogen
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 15-29 cSt
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 24-30 cSt
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 30-45 cSt
  • Methyl H polysiloxane
  • POLY(DIMETHYLSILOXANE-CO-METHYLHYDRO-
  • Methylhydrogensiloxane Dimethylsiloxane Copolymer
  • Polymethyl hydrosiloxane, METHYL HYDROGENSILICONE FLUID
  • Polymethylhydrosiloxane, Trimethylsiloxy Terminated
  • CFS-F(H)
  • CFS-F(H), Methyl Hydrogen Silicone Oil/Polymethylhydrogensiloxane
  • Poly(methylhydrosiloxane) USP/EP/BP
  • Methyl Hydrogen Polysiloxane Emulsion
  • PolyHydroxy(dimethyl)silane
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 15-25cs
  • Hydrosilicone oil
  • Methylhydrogensiloxane polymer, PMHS
  • Hydrogen silicone oil
  • Methyl Hydrogen Silicone Fluid
  • Methyl Hydrogen Silicone Oil
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 25-35cs
  • Methyl High Hydrogen silicone oil IOTA 202
  • XIAMETE PMX-200 Silicone Fluid 5 cSt
  • MH Fluid Methyl Hydrogen Silicone Fluid
  • 63148-57-2
  • C3H9OSiCH4OSinC3H9Si
  • CH33SiOCH3HSiOnSiCH33
  • CH33SiOSiHCH3OnSiCH33
  • Organosilicon
  • Organometallic Reagents
  • Siloxanes
  • Silicone Series
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