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CAS 63148-57-2

:

Polimetilhidrossiloxano

Descrição:
Polimetilhidrossiloxano (PMHS), com o número CAS 63148-57-2, é um polímero à base de silicone caracterizado por sua estrutura única, que inclui grupos metila e hidreto ligados a átomos de silício. Este composto é conhecido por sua versatilidade e é comumente utilizado como fluido ou resina de silicone. PMHS exibe excelente estabilidade térmica, resistência química e baixa tensão superficial, tornando-o adequado para várias aplicações, incluindo selantes, adesivos e revestimentos. Sua capacidade de reação de hidrossililação permite que participe de processos de entrelaçamento, melhorando as propriedades mecânicas dos elastômeros de silicone. Além disso, o PMHS é frequentemente utilizado na formulação de produtos de cuidados pessoais devido às suas propriedades condicionantes da pele. O polímero é geralmente considerado seguro para uso em produtos de consumo, mas medidas adequadas de manuseio e segurança devem ser observadas, assim como com qualquer substância química. No geral, o PMHS é valorizado por suas propriedades funcionais e adaptabilidade em várias indústrias, incluindo automotiva, eletrônica e cosméticos.
Fórmula:C7H22O2Si3
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  • Alkasil MH 1667
  • Blue Star 202
  • Bluesil 269
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  • Bluesil WR 68
  • Bs 4004
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13 produtos.
  • 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>
    Fórmula:(CH4OSi)n
    Cor e Forma:Clear colorless, Liquid
    Peso molecular:ca 1900

    Ref: 02-L14561

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

    CAS:
    Fórmula:C9H30O2Si3
    Pureza:%
    Cor e Forma:Liquid
    Peso molecular: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>
    Fórmula:(CH4Si)nC6H18O2Si2
    Pureza:= 99% (GC)
    Cor e Forma:Liquid, Clear
    Peso molecular: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.
    Cor e Forma: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>
    Cor e Forma:Liquid
    Peso molecular:1800-2100

    Ref: 3H-HMS-992

    3kg
    A consultar
    100g
    A consultar
    18kg
    A consultar
    180kg
    A consultar
  • Gelest Titanium Dioxide MM

    CAS:
    <p>INCI Name: Titanium Dioxide (&amp;) Methicone<br></p>
    Cor e Forma:White Solid

    Ref: 3H-WIA-MMA

    25kg
    A consultar
  • 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>
    Cor e Forma:Liquid
    Peso molecular:2100-2400

    Ref: 3H-HMS-993

    3kg
    A consultar
    100g
    A consultar
    18kg
    A consultar
    200kg
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    1000kg
    A consultar
  • 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>
    Cor e Forma:Liquid
    Peso molecular:1400-1800

    Ref: 3H-HMS-991

    3kg
    A consultar
    15kg
    A consultar
    18kg
    A consultar
    180kg
    A consultar
  • Polymethylhydrosiloxane

    CAS:
    Pureza:viscosity 17-40 mPa.s (20 °C)
    Peso molecular: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>
    Fórmula:(CH4Si)nC6H18O2Si2
    Pureza:= 99% (GC)
    Cor e Forma:Liquid, Clear
    Peso molecular:1400-1800

    Ref: 10-HMS-991

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

    CAS:
    Fórmula:(CH4Si)nC6H18O2Si2
    Pureza:= 99% (GC)
    Cor e Forma:Liquid, Clear
    Peso molecular:0.0

    Ref: 10-HMS-993

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

    Produto Controlado
    CAS:
    Cor e Forma:Neat

    Ref: TR-P688465

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