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CAS 63148-57-2

:

Polymethylhydrosiloxan

Beschreibung:
Polymethylhydrosiloxan (PMHS), mit der CAS-Nummer 63148-57-2, ist ein silikonbasiertes Polymer, das durch seine einzigartige Struktur gekennzeichnet ist, die Methyl- und Hydridgruppen enthält, die an Siliziumatome gebunden sind. Diese Verbindung ist bekannt für ihre Vielseitigkeit und wird häufig als Silikonfluid oder -harz verwendet. PMHS zeigt eine hervorragende thermische Stabilität, chemische Beständigkeit und eine niedrige Oberflächenspannung, was es für verschiedene Anwendungen geeignet macht, einschließlich Dichtstoffe, Klebstoffe und Beschichtungen. Seine Fähigkeit zur Hydrosilylation ermöglicht es ihm, an Vernetzungsprozessen teilzunehmen, wodurch die mechanischen Eigenschaften von Silikonelastomeren verbessert werden. Darüber hinaus wird PMHS häufig in der Formulierung von Körperpflegeprodukten aufgrund seiner hautpflegenden Eigenschaften verwendet. Das Polymer wird im Allgemeinen als sicher für die Verwendung in Verbrauchermaterialien angesehen, jedoch sollten angemessene Handhabungs- und Sicherheitsmaßnahmen beachtet werden, wie bei jeder chemischen Substanz. Insgesamt wird PMHS für seine funktionalen Eigenschaften und Anpassungsfähigkeit in mehreren Branchen, einschließlich Automobil, Elektronik und Kosmetik, geschätzt.
Formel:C7H22O2Si3
Synonyme:
  • Abil OSW 5
  • Akophob SN
  • Alkasil MH 1667
  • Blue Star 202
  • Bluesil 269
  • Bluesil 628V12H3.5
  • Bluesil Emulsion 269
  • Bluesil WR 68
  • Bs 4004
  • By 11-003
  • Weitere Synonyme anzeigen
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13 Produkte.
  • Poly(methylhydrosiloxane)

    CAS:
    <p>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 </p>
    Formel:(CH4OSi)n
    Farbe und Form:Clear colorless, Liquid
    Molekulargewicht:ca 1900

    Ref: 02-L14561

    1kg
    211,00€
    50g
    Nachfragen
    250g
    78,00€
  • Me hydrogen silicones

    CAS:
    Formel:C9H30O2Si3
    Reinheit:%
    Farbe und Form:Liquid
    Molekulargewicht:254.5898

    Ref: IN-DA003TU1

    25g
    25,00€
    100g
    28,00€
    500g
    62,00€
  • Poly(Methylhydrosiloxane)

    CAS:
    Poly(Methylhydrosiloxane)

    Ref: 54-OR1014727

    100g
    30,00€
    25kg
    2.538,00€
    500g
    81,00€
    2.5kg
    280,00€
  • Polymethylhydrosiloxanes, trimethlysiloxy terminated 24-30cSt

    CAS:
    <p>HMS-992 - Polymethylhydrosiloxanes, trimethlysiloxy terminated 24-30cSt</p>
    Formel:(CH4Si)nC6H18O2Si2
    Reinheit:= 99% (GC)
    Farbe und Form:Liquid, Clear
    Molekulargewicht:1800-2100

    Ref: 10-HMS-992

    100g
    31,00€
  • Poly(methylhydrosiloxane)

    CAS:
    Polymethylhydrosiloxane is a polymer that is used in coatings and adhesives. It has been shown to be an efficient aid for removing copper chloride from water and can be applied to the treatment of calcium carbonate sludge. Poly(methylhydrosiloxane) also has high affinity for fatty esters, which is important for its use as a mass analyzer in environmental pollution studies. This polymer has been shown to have excellent kinetic and optical properties, making it a good candidate for electrochemical studies.
    Farbe und Form:Colorless Clear Liquid

    Ref: 3D-FP137564

    1kg
    509,00€
    2kg
    679,00€
    5kg
    804,00€
    250g
    254,00€
    500g
    382,00€
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 20-35 cSt

    CAS:
    <p>Siloxane-Based Silane Reducing Agent<br>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.<br>Pendant Functional Fluid; polyMethylHydrosiloxanes, TMS Terminated<br>MethylHydrosiloxane homopolymers are used as water-proofing agents, reducing agents and as components in some foamed silicone systems.<br>Poly(methylhydrosiloxane); Methyl hydrogen siloxane; Polysiloxanes, methyl hydrogen; Siloxanes and silicones, methyl hydrogen<br>Viscosity: 20-35 cStMolecular Weight: 1,800-2,100 g/molMol% Hydride: 100Reduces lactones to lactolsReduces aldehydes, ketones, esters, lactones, triglycerides and epoxides to alcohols with zinc hydride catalysisWith titanium tetraisopropoxide catalysis carries out reductive amination of ketones and aldehydes and the reduction of acids or esters to 1° alcoholsWith TBAF catalysis selectively reduces aldehydes over ketonesUsed to generate tri-n-butyltin hydride ‘in-situ’ and in a one-pot hydrostannylation/Stille coupling sequenceReduces esters to alcoholsExtensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catalyzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007<br></p>
    Farbe und Form:Liquid
    Molekulargewicht:1800-2100

    Ref: 3H-HMS-992

    3kg
    Nachfragen
    100g
    Nachfragen
    18kg
    Nachfragen
    180kg
    Nachfragen
  • Gelest Titanium Dioxide MM

    CAS:
    <p>INCI Name: Titanium Dioxide (&amp;) Methicone<br></p>
    Farbe und Form:White Solid

    Ref: 3H-WIA-MMA

    25kg
    Nachfragen
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 30-45 cSt

    CAS:
    <p>Siloxane-Based Silane Reducing Agent<br>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.<br>Pendant Functional Fluid; polyMethylHydrosiloxanes, TMS Terminated<br>MethylHydrosiloxane homopolymers are used as water-proofing agents, reducing agents and as components in some foamed silicone systems.<br>Poly(methylhydrosiloxane); Methyl hydrogen siloxane; Polysiloxanes, methyl hydrogen; Siloxanes and silicones, methyl hydrogen<br>Viscosity: 30-45 cStMolecular Weight: 2,100-2,400 g/molMol% Hydride: 100Reduces lactones to lactolsReduces aldehydes, ketones, esters, lactones, triglycerides and epoxides to alcohols with zinc hydride catalysisWith titanium tetraisopropoxide catalysis carries out reductive amination of ketones and aldehydes and the reduction of acids or esters to 1° alcoholsWith TBAF catalysis selectively reduces aldehydes over ketonesUsed to generate tri-n-butyltin hydride ‘in-situ’ and in a one-pot hydrostannylation/Stille coupling sequenceReduces esters to alcoholsExtensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catalyzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007<br></p>
    Farbe und Form:Liquid
    Molekulargewicht:2100-2400

    Ref: 3H-HMS-993

    3kg
    Nachfragen
    100g
    Nachfragen
    18kg
    Nachfragen
    200kg
    Nachfragen
    1000kg
    Nachfragen
  • POLYMETHYLHYDROSILOXANE, TRIMETHYLSILYL TERMINATED, 15-25 cSt

    CAS:
    <p>Siloxane-Based Silane Reducing Agent<br>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.<br>Pendant Functional Fluid; polyMethylHydrosiloxanes, TMS Terminated<br>MethylHydrosiloxane homopolymers are used as water-proofing agents, reducing agents and as components in some foamed silicone systems.<br>Poly(methylhydrosiloxane); Methyl hydrogen siloxane; Polysiloxanes, methyl hydrogen; Siloxanes and silicones, methyl hydrogen<br>Viscosity: 15-25 cStMolecular Weight: 1,400-1,800 g/molMol% Hydride: 100Reduces lactones to lactolsReduces aldehydes, ketones, esters, lactones, triglycerides and epoxides to alcohols with zinc hydride catalysisWith titanium tetraisopropoxide catalysis carries out reductive amination of ketones and aldehydes and the reduction of acids or esters to 1° alcoholsWith TBAF catalysis selectively reduces aldehydes over ketonesUsed to generate tri-n-butyltin hydride ‘in-situ’ and in a one-pot hydrostannylation/Stille coupling sequenceReduces esters to alcoholsExtensive review of silicon based reducing agents: Larson, G.; Fry, J. L. "Ionic and Organometallic-Catalyzed Organosilane Reductions", Wipf, P., Ed.; Wiley, 2007<br></p>
    Farbe und Form:Liquid
    Molekulargewicht:1400-1800

    Ref: 3H-HMS-991

    3kg
    Nachfragen
    15kg
    Nachfragen
    18kg
    Nachfragen
    180kg
    Nachfragen
  • Polymethylhydrosiloxane

    CAS:
    Reinheit:viscosity 17-40 mPa.s (20 °C)
    Molekulargewicht:61.0

    Ref: 10-F985918

    1kg
    148,00€
    100g
    28,00€
    500g
    96,00€
  • Polymethylhydrosiloxanes, trimethlysiloxy terminated 15-25cSt

    CAS:
    <p>HMS-991 - Polymethylhydrosiloxanes, trimethlysiloxy terminated 15-25cSt</p>
    Formel:(CH4Si)nC6H18O2Si2
    Reinheit:= 99% (GC)
    Farbe und Form:Liquid, Clear
    Molekulargewicht:1400-1800

    Ref: 10-HMS-991

    100g
    29,00€
  • Polymethylhydrosiloxanes, trimethlysiloxy terminated 30-45cSt

    CAS:
    Formel:(CH4Si)nC6H18O2Si2
    Reinheit:= 99% (GC)
    Farbe und Form:Liquid, Clear
    Molekulargewicht:0.0

    Ref: 10-HMS-993

    3kg
    686,00€
    100g
    374,00€
  • Poly(methyl hydrogen siloxane)

    Kontrolliertes Produkt
    CAS:
    Farbe und Form:Neat

    Ref: TR-P688465

    1g
    81,00€
    5g
    106,00€
    2500mg
    96,00€