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PENTAMETHYLDISILOXANE

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Origin: China

Cas No: 1438-82-0

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 50 mt/month

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  • Products Specification
  • Product Description

  • Property

    CAS No.: 1438-82-0 Formula: C5H16OSi2 Molecular Weight: 148.35100

    Description

    Pentamethyldisiloxane, is an organosilicon compound used in synthesis of siloxane-polyether copolymer surfactants. Pentamethyldisiloxane can also be used as source of the trimethylsilyl functional group in organic synthesis.

    Basic Info

    Chemical Name PENTAMETHYLDISILOXANE
    Synonyms

    Pentamethyldisiloxane;
    1,1,1,3,3-pentamethyl-disiloxane;
    1,1,1,3,3-Pentamethyldisiloxane;
    pentamethyl-disiloxan;
    HMe2SiOSiMe3;
    1,1,1,3,3-Pentamethylpropanedisiloxane;
    Disiloxane,pentamethyl;
    2,2,4-Trimethyl-3-oxa-2,4-disilapentane;
    1,1,3,3,3-pentamethyldisiloxane;

    CAS No. 1438-82-0
    Molecular Formula C5H16OSi2
    Molecular Weight 148.35100
    PSA 9.23000
    LogP 1.82130

    Properties

    Density 0.758
    Boiling Point 84.5ºC at 760mmHg
    Flash Point 4.9ºC
    Refractive Index n20/D 1.373

    Safety Info

    Safety Statements S16-S23-S29-S33
    HS Code 2934999090
    Packing Group II
    RIDADR UN 1993 3/PG 2
    Risk Statements R11
    Hazard Codes F

    Synthesis Route

    (dimethyl-λ<sup>3</sup>-silanyl)oxy-dimethylsilicon→dimethylsilicon+PENTAMETHYLDISILOXANE
    (dimethyl-λ<sup>3</sup>-silanyl)oxy-dimethylsilicon+hexamethyldisiloxane→PENTAMETHYLDISILOXANE
    Pentamethyldisilane→PENTAMETHYLDISILOXANE+hydroxy-dimethyl-trimethylsilyloxysilane

    Precursor

    (dimethyl-λ<sup>3</sup>-silanyl)oxy-dimethylsilicon
    Chloropentamethyldisiloxane
    Pentamethyldisilane
    hexamethyldisiloxane

    Downstream Product

    3-[dimethyl(trimethylsilyloxy)silyl]propyl 2-methylprop-2-enoate
    ethenyl-dimethyl-trimethylsilyloxysilane
    3-[dimethyl(trimethylsilyloxy)silyl]propan-1-amine
    2-[dimethyl(trimethylsilyloxy)silyl]ethyl-[2-[dimethyl(trimethylsilyloxy)silyl]ethyl-dimethylsilyl]oxy-dimethylsilane

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