CAS 63148-57-2 Polymethylhydrosiloxane methyl high hydrogen silicone fluid silicone oil

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Products Specification
Appearance					Colorless transparent Liqud
Hydrogen Content(%)					1.58~1.62
Viscosity					20-30CST
Molecular Formula					(CH3)3SiO[(CH3)(H)SiO]nSi(CH3)3.
PH					7

CAS 63148-57-2 Polymethylhydrosiloxane methyl high hydrogen silicone fluid silicone oil

Polymethylhydrosiloxane (PMHS) is a Polymer with the general structure -(CH3(H)Si-O)-. It is used in organic chemistry as a mild and stable reducing agent easily transferring hydrides to metal centers.[1] A variety of related materials are available under the following CAS registry numbers 9004-73-3, 16066-09-4, 63148-57-2, 178873-19-3. These include the tetramer ((MeSiHO)4), copolymers of dimethylsiloxane and methylhydrosiloxane, and trimethylsilyl terminated materials.

This material is prepared by the hydrolysis of methyldichlorosilane:

n MeSiHCl2 + n H2O → (MeSiHO)n + 2n HCl

The related polymer polydimethylsiloxane (PDMS) is made similarly, but lacking Si-H bonds, it exhibits no reducing properties.

Illustrative of its use, PMHS is used for in situ conversion of tributyltin Oxide to tributyltin hydride:[2]

2"(MeSiH)" + (Bu3Sn)2O → "Me2Si2O" + 2 Bu3SnH
Applications CAS 63148-57-2 Polymethylhydrosiloxane methyl high hydrogen silicone fluid silicone oil
Energy Methyl Hydrogen Silicone Oil Phenyl Silicon 201 Antifoam Additive Completion Fluid Organosilanes are hydrocarbon-like and possess the ability to serve as both ionic and free-radical reducing agents. These reagents and their reaction by-products are safer and more easily handled and disposed than many other reducing agents. The metallic nature of silicon and its low electronegativity relative to hydrogen lead to polarization of the Si-H bond yielding a hydridic hydrogen and a milder reducing agent compared to aluminum-, boron-, and other metal-based hydrides. A summary of some key Silane reductions are presented in Table 1 of the Silicon-Based Reducing Agents brochure. Pendant Functional Fluid; MethylHydrosiloxane-Dimethylsiloxane Copolymer, TMS Terminated. MethylHydrosiloxane copolymers are the primary cross linkers for 2-part vinyl-addition silicones and intermediates for functional copolymers. Hydrogen dimethicone; Dimethylhydropolysiloxane; Dimethicone/methicone copolymer; Polysiloxanes dimethyl methyl hydrogen, Hydride functional polydimethylsiloxane; Siloxanes and silicones, dimethyl, methyl hydrogen Product packaging ·25/50kg Polyethylene plastic buckets
·FedEx/DHL/UPS for samples & small quantity order delivery, Door to Door.
·By Air, by Sea or by Rail for batch goods, for FCL. Airport/Seaport/Railway Station receiving.
·Delivery Times: 1-7 working days for samples; 5-20 working days for batch goods
.This product should be sealed and stored in a ventilated and dry place to prevent rain and sunlight.  It should not be mixed with strong acid, strong Alkali or toxic substance, mixed and stacked
.This product is transported by non-dangerous goods

Our factory Certifications FAQ
1. Do you accept third party inspection?
Yes, we do

2. Are you a trading company or manufacturer?
We are professional silicone oil manufacturer with 20years experience.

3. How long is your delivery time?
15-25days for FCL orders,and 7days for sample orders.

4. Do you test all your goods before delivery?
Yes, we have 100% test before delivery and can provide COA.

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Yes, we could offer the sample for free charge but do not pay the cost of freight.

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Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,balance before shipment or against B/L copy,also LC at sight is available .

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