Hexyltrichlorosilane

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  • Identifiers

    CAS number
    928-65-4

    Molecular formula
    C6H13Cl3Si

    SMILES
    CCCCCC[Si](Cl)(Cl)Cl

    Safety labels

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

  • Odor profile

    Fragrance
    Floral 36.79%
    Waxy 33.12%
    Oily 32.8%
    Sweet 32.52%
    Fresh 29.84%
    Woody 29.45%
    Fishy 28.44%
    Citrus 27.56%
    Odorless 26.98%
    Balsamic 24.08%

     

    Flavor
    Sulfurous 24.49%
    Mild 22.51%
    Bland 21.96%
    Odorless 21.56%
    Sulfury 21.13%
    Skunky 20.68%
    Bloody 20.41%
    Glue 20.15%
    Meaty 19.72%
    Violet-leaf 19.0%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    8.57 (weak base)

    Molecular weight
    219.6 g/mol

    Boiling point

    • 190 °C

    Flash point

    • 75.91 ˚C est.

  • Synonyms

    • HEXYLTRICHLOROSILANE
    • 928-65-4
    • Trichloro(hexyl)silane
    • Trichlorohexylsilane
    • n-Hexyltrichlorosilane
    • Silane, trichlorohexyl-
    • Silane, hexyltrichloro-
    • 1-hexyltrichlorosilane
    • 1,1,1-trichloro-1-silaheptane
    • UNII-BJ5Z98918X
    • HSDB 2005
    • BJ5Z98918X
    • EINECS 213-178-1
    • UN1784
    • NSC 139843
    • NSC-139843
    • DTXSID4044741
    • nHexyltrichlorosilane
    • Trichloronhexylsilane
    • MFCD00013606
    • Silane, hexyltrichloro
    • Silane, trichlorohexyl
    • WLN: G-SI-GG6
    • SCHEMBL93492
    • Trichloro(hexyl)silane, 97%
    • DTXCID2024741
    • NSC139843
    • AKOS016011197
    • DB-057340
    • H0547
    • NS00041796
    • Hexyltrichlorosilane [UN1784] [Corrosive]
    • D90896
    • Q27274696

  • Applications

    Hexyltrichlorosilane (CAS 928-65-4) is used primarily as a silane coupling agent and surface modifier to enhance adhesion between organic polymers and inorganic substrates in coatings, adhesives, and sealants; it also serves as a precursor for the synthesis of functional silanes and siloxane networks for silicone polymers and other resins; as a functionalized precursor, it improves the compatibility of inorganic fillers with polymer matrices in composites and plastics; it is employed for surface treatments to impart hydrophobicity on glass, ceramics, metals, and textiles; in electronics and packaging, it aids adhesion of organic layers to inorganic substrates and contributes to moisture resistance.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 303.05
    methanol 258.74
    isopropanol 251.36
    water 0.53
    ethyl acetate 402.28
    n-propanol 288.7
    acetone 949.98
    n-butanol 306.65
    acetonitrile 222.65
    DMF 1465.27
    toluene 411.66
    isobutanol 226.61
    1,4-dioxane 815.42
    methyl acetate 417.56
    THF 2365.32
    2-butanone 669.05
    n-pentanol 242.86
    sec-butanol 268.88
    n-hexane 46.34
    ethylene glycol 67.77
    NMP 1495.84
    cyclohexane 124.26
    DMSO 1199.39
    n-butyl acetate 492.21
    n-octanol 162.2
    chloroform 980.75
    n-propyl acetate 353.16
    acetic acid 337.89
    dichloromethane 648.91
    cyclohexanone 1113.61
    propylene glycol 124.89
    isopropyl acetate 309.71
    DMAc 1071.58
    2-ethoxyethanol 375.64
    isopentanol 263.87
    n-heptane 61.99
    ethyl formate 291.76
    1,2-dichloroethane 522.41
    n-hexanol 307.21
    2-methoxyethanol 546.27
    isobutyl acetate 251.3
    tetrachloromethane 211.79
    n-pentyl acetate 357.02
    transcutol 998.4
    n-heptanol 193.07
    ethylbenzene 158.06
    MIBK 364.89
    2-propoxyethanol 503.07
    tert-butanol 358.76
    MTBE 489.23
    2-butoxyethanol 352.66
    propionic acid 232.61
    o-xylene 227.94
    formic acid 110.85
    diethyl ether 425.77
    m-xylene 249.63
    p-xylene 203.0
    chlorobenzene 472.67
    dimethyl carbonate 240.99
    n-octane 20.79
    formamide 222.83
    cyclopentanone 1600.84
    2-pentanone 610.72
    anisole 427.69
    cyclopentyl methyl ether 844.79
    gamma-butyrolactone 1219.9
    1-methoxy-2-propanol 461.86
    pyridine 819.9
    3-pentanone 442.91
    furfural 1199.12
    n-dodecane 12.52
    diethylene glycol 306.46
    diisopropyl ether 168.54
    tert-amyl alcohol 337.84
    acetylacetone 702.3
    n-hexadecane 14.85
    acetophenone 429.86
    methyl propionate 375.54
    isopentyl acetate 428.07
    trichloroethylene 1272.0
    n-nonanol 143.46
    cyclohexanol 381.6
    benzyl alcohol 315.65
    2-ethylhexanol 214.91
    isooctanol 156.57
    dipropyl ether 334.86
    1,2-dichlorobenzene 404.26
    ethyl lactate 167.08
    propylene carbonate 661.26
    n-methylformamide 441.94
    2-pentanol 235.56
    n-pentane 59.56
    1-propoxy-2-propanol 441.72
    1-methoxy-2-propyl acetate 518.94
    2-(2-methoxypropoxy) propanol 317.58
    mesitylene 160.67
    ε-caprolactone 761.68
    p-cymene 148.09
    epichlorohydrin 1103.84
    1,1,1-trichloroethane 622.28
    2-aminoethanol 143.86
    morpholine-4-carbaldehyde 1101.43
    sulfolane 1500.48
    2,2,4-trimethylpentane 43.37
    2-methyltetrahydrofuran 1164.37
    n-hexyl acetate 367.75
    isooctane 31.53
    2-(2-butoxyethoxy)ethanol 423.15
    sec-butyl acetate 251.34
    tert-butyl acetate 454.93
    decalin 48.96
    glycerin 178.43
    diglyme 861.96
    acrylic acid 231.91
    isopropyl myristate 147.35
    n-butyric acid 376.96
    acetyl acetate 305.49
    di(2-ethylhexyl) phthalate 155.73
    ethyl propionate 264.59
    nitromethane 692.05
    1,2-diethoxyethane 478.42
    benzonitrile 387.28
    trioctyl phosphate 117.26
    1-bromopropane 324.37
    gamma-valerolactone 1562.41
    n-decanol 103.03
    triethyl phosphate 175.54
    4-methyl-2-pentanol 151.51
    propionitrile 212.35
    vinylene carbonate 569.94
    1,1,2-trichlorotrifluoroethane 758.44
    DMS 293.33
    cumene 108.19
    2-octanol 144.33
    2-hexanone 414.52
    octyl acetate 192.95
    limonene 236.51
    1,2-dimethoxyethane 741.26
    ethyl orthosilicate 186.92
    tributyl phosphate 138.18
    diacetone alcohol 437.34
    N,N-dimethylaniline 302.5
    acrylonitrile 276.54
    aniline 424.7
    1,3-propanediol 235.95
    bromobenzene 492.15
    dibromomethane 485.66
    1,1,2,2-tetrachloroethane 975.82
    2-methyl-cyclohexyl acetate 328.55
    tetrabutyl urea 205.99
    diisobutyl methanol 140.71
    2-phenylethanol 345.38
    styrene 225.51
    dioctyl adipate 233.3
    dimethyl sulfate 442.92
    ethyl butyrate 351.15
    methyl lactate 227.4
    butyl lactate 273.73
    diethyl carbonate 215.88
    propanediol butyl ether 333.14
    triethyl orthoformate 296.87
    p-tert-butyltoluene 167.2
    methyl 4-tert-butylbenzoate 348.09
    morpholine 1000.03
    tert-butylamine 231.64
    n-dodecanol 77.9
    dimethoxymethane 702.05
    ethylene carbonate 454.15
    cyrene 431.09
    2-ethoxyethyl acetate 459.89
    2-ethylhexyl acetate 374.27
    1,2,4-trichlorobenzene 526.37
    4-methylpyridine 875.04
    dibutyl ether 212.9
    2,6-dimethyl-4-heptanol 140.71
    DEF 621.4
    dimethyl isosorbide 660.25
    tetrachloroethylene 654.64
    eugenol 342.3
    triacetin 373.22
    span 80 334.85
    1,4-butanediol 113.27
    1,1-dichloroethane 512.21
    2-methyl-1-pentanol 220.67
    methyl formate 375.26
    2-methyl-1-butanol 267.79
    n-decane 23.01
    butyronitrile 283.6
    3,7-dimethyl-1-octanol 155.01
    1-chlorooctane 116.51
    1-chlorotetradecane 44.51
    n-nonane 22.51
    undecane 16.05
    tert-butylcyclohexane 46.94
    cyclooctane 50.98
    cyclopentanol 461.49
    tetrahydropyran 970.74
    tert-amyl methyl ether 415.83
    2,5,8-trioxanonane 553.88
    1-hexene 148.66
    2-isopropoxyethanol 278.52
    2,2,2-trifluoroethanol 160.92
    methyl butyrate 383.11

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
 No restriction
Category 2
Products applied to the axillae
 No restriction Category 7B
Leave-on products applied to the hair with some hand contact
 No restriction
Category 3
Products applied to the face/body using fingertips
 No restriction Category 8
Products with significant anogenital exposure
 No restriction
Category 4
Products related to fine fragrance
 No restriction Category 9
Products with body and hand exposure, primarily rinse off
 No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 No restriction Category 10A
Household care products with mostly hand contact
 No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 No restriction
Category 5D
Baby Creams, baby Oils and baby talc
 No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 No restriction
Category 6
Products with oral and lip exposure
 No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction