(7-9% METHYLHYDROSILOXANE) - DIMETHYLSILOXANE COPOLYMER, TRIMETHYLSILOXANE TERMINATED, 110-150 cSt

Product Code: HMS-082
CAS No: 68037-59-2
SDS Sheets: EU | US
COMMERCIAL
68037-59-2
Pack Size
Quantity
Price
 
100 g
$33.00
3 kg
$225.00
16 kg
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200 kg
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Product data and descriptions listed are typical values, not intended to be used as specification.

  • HMIS

    1-1-1-X
  • Molecular Weight (g/mol)

    5,500 - 6,500
  • TSCA

    Yes
  • Boiling Point (˚C/mmHg)

    NA
  • Density (g/mL)

    0.97
  • Refractive Index @ 20˚C

    1.403
  • Viscosity at 25 ˚C (cSt)

    110-150

Safety

  • Packaging Under

    Nitrogen
  • Siloxane-Based Silane Reducing Agent

    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

  • Viscosity: 110-150 cSt
  • Molecular Weight: 5,500-6,500 g/mol
  • Mol% Hydride: 7-9
  • Potential reducing agents in the mode of HMS-991 or HMS-997
  • Extensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catalyzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007
  • Silicon Chemistry, Articles

    Key Organosilane Reductions – Larson

    The Si-H bond, based on the relative electrongativities of Si and H, is polarised such that the hydrogen is slightly hydridic in nature. The fact that the silanes are not strongly hydridic makes them excellent candidates for mild and selective reductions of organic functional groups.

    Silicon Chemistry, Articles

    Organosilane Reductions with Polymethylhydrosiloxanes – Larson

    The reduction of a comprehensive range of organic functional groups ranging from carboxylic acids to aryl fluorides have been shown to be possible with a variety of organosilanes. A comprehensive review of the ionic and transition metal-catalyzed reductions of organic functional groups has recently appeared.

    Silicon Chemistry, Articles

    The Synthesis of Gliflozins – Larson

    Some of the general approaches to the key steps in the synthesis of gliflozins, a class of glucose transporters, are discussed. In particular the glycosidation step for the introduction of the key aryl moiety onto the glucose and the reduction steps are presented.  Click here for more product information on tetramethyldisiloxane (TMDO, TMDS) reducing agent.