Dichlorodiphenylsilane

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  • Identifiers

    CAS number
    80-10-4

    Molecular formula
    C12H10Cl2Si

    SMILES
    C1=CC=C(C=C1)[Si](C2=CC=CC=C2)(Cl)Cl

    Safety labels

    Corrosive
    Corrosive

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Floral 53.48%
    Rose 41.63%
    Green 36.28%
    Balsamic 34.27%
    Sweet 29.53%
    Fruity 24.78%
    Geranium 24.49%
    Animal 23.3%
    Metallic 23.05%
    Fresh 22.31%

     

    Flavor
    Bitter 26.01%
    Nitrile 18.71%
    Mild 18.62%
    Tar 18.23%
    Tarry 18.22%
    Turnup 17.75%
    Odorless 17.72%
    Penetrating 17.64%
    Very strong 17.49%
    Moth ball 17.48%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    6.54 (neutral)

    Molecular weight
    253.19 g/mol

    Melting point expt.

    • -22 °C

    Boiling point

    • 579 °F at 760 mmHg (USCG, 1999)
    • 305 °C

    Flash point

    • 142.88 ˚C est.
    • 288 °F (USCG, 1999)
    • 288 °F (142 °C) CC

    Solubility expt.

    • Soluble in ethanol, ethyl ether, acetone, carbon tetrachloride and benzene

  • Synonyms

    • DICHLORODIPHENYLSILANE
    • 80-10-4
    • Diphenyldichlorosilane
    • Silane, dichlorodiphenyl-
    • Dichloro(diphenyl)silane
    • Diphenylsilicon dichloride
    • Diphenylsilyl dichloride
    • Dichlor-difenylsilan
    • Diphenyl dichlorosilane
    • TSL 8062
    • HSDB 316
    • EINECS 201-251-0
    • NSC 77110
    • BRN 0609882
    • DTXSID2026494
    • AI3-51461
    • UNII-08811ZE689
    • NSC-77110
    • Benzene, 1,1'-(dichlorosilylene)bis-
    • DTXCID706494
    • 08811ZE689
    • EC 201-251-0
    • 4-16-00-01526 (Beilstein Handbook Reference)
    • Dichlor-difenylsilan [Czech]
    • 29386-52-5
    • MFCD00000489
    • UN1769
    • Dichlorodiphenylsilane; Diphenylsilicon Dichloride; Diphenylsilyl Dichloride; NSC 77110; TSL 8062
    • dichlorodiphenylsilicane
    • dichloro-diphenyl-silane
    • Silane, dichlorodiphenyl
    • Silane, dichloro-diphenyl-
    • WLN: G-SI-GR&R
    • Dichlorodiphenylsilane, 97%
    • SCHEMBL76000
    • CHEMBL2144653
    • NSC77110
    • Tox21_202552
    • CD5950
    • AKOS008901314
    • UN 1769
    • CAS-80-10-4
    • NCGC00163994-01
    • NCGC00260101-01
    • LS-14047
    • DB-029647
    • D0362
    • NS00041232
    • Diphenyldichlorosilane [UN1769] [Corrosive]
    • EN300-133566
    • Q27236382
    • 201-251-0
    • InChI=1/C12H10Cl2Si/c13-15(14,11-7-3-1-4-8-11)12-9-5-2-6-10-12/h1-10

  • Applications

    Dichlorodiphenylsilane (CAS 80-10-4) is primarily used as an intermediate for making phenyl-substituted silicones and siloxane polymers; it serves as a reactive precursor for hydrolysis and condensation to form phenyl-containing siloxanes with higher thermal stability and refractive index. In coatings, inks, and adhesives, it functions as a silane coupling/ crosslinking agent and surface modifier, enabling adhesion to glass, ceramics, and polymer substrates. It is also employed as a starting material for specialty silicone resins used in electronics and optics, where aging resistance, dielectric properties, and optical clarity are important. Additionally, it can be used to synthesize high-performance silicone intermediates and sealants, with formulation constraints governed by local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 64.26
    methanol 39.78
    isopropanol 52.59
    water 0.06
    ethyl acetate 81.86
    n-propanol 70.59
    acetone 168.71
    n-butanol 71.98
    acetonitrile 47.3
    DMF 503.33
    toluene 120.67
    isobutanol 53.6
    1,4-dioxane 289.95
    methyl acetate 96.83
    THF 792.84
    2-butanone 167.57
    n-pentanol 54.34
    sec-butanol 62.46
    n-hexane 7.22
    ethylene glycol 13.68
    NMP 419.83
    cyclohexane 25.86
    DMSO 217.8
    n-butyl acetate 99.9
    n-octanol 48.03
    chloroform 356.94
    n-propyl acetate 75.52
    acetic acid 53.34
    dichloromethane 269.16
    cyclohexanone 356.4
    propylene glycol 30.0
    isopropyl acetate 68.54
    DMAc 292.29
    2-ethoxyethanol 85.46
    isopentanol 57.08
    n-heptane 23.18
    ethyl formate 86.37
    1,2-dichloroethane 183.47
    n-hexanol 77.99
    2-methoxyethanol 142.38
    isobutyl acetate 62.08
    tetrachloromethane 46.44
    n-pentyl acetate 102.43
    transcutol 157.68
    n-heptanol 55.79
    ethylbenzene 57.43
    MIBK 94.1
    2-propoxyethanol 132.97
    tert-butanol 66.58
    MTBE 83.02
    2-butoxyethanol 95.53
    propionic acid 53.9
    o-xylene 64.97
    formic acid 13.61
    diethyl ether 91.03
    m-xylene 68.57
    p-xylene 56.55
    chlorobenzene 150.26
    dimethyl carbonate 72.23
    n-octane 11.85
    formamide 44.08
    cyclopentanone 597.25
    2-pentanone 145.46
    anisole 141.8
    cyclopentyl methyl ether 216.1
    gamma-butyrolactone 426.96
    1-methoxy-2-propanol 119.92
    pyridine 328.0
    3-pentanone 112.12
    furfural 362.47
    n-dodecane 7.99
    diethylene glycol 75.32
    diisopropyl ether 32.66
    tert-amyl alcohol 63.77
    acetylacetone 153.63
    n-hexadecane 9.29
    acetophenone 135.42
    methyl propionate 98.64
    isopentyl acetate 93.85
    trichloroethylene 414.15
    n-nonanol 46.99
    cyclohexanol 96.01
    benzyl alcohol 103.34
    2-ethylhexanol 60.48
    isooctanol 49.09
    dipropyl ether 89.75
    1,2-dichlorobenzene 135.77
    ethyl lactate 46.84
    propylene carbonate 203.16
    n-methylformamide 135.24
    2-pentanol 53.47
    n-pentane 12.65
    1-propoxy-2-propanol 106.27
    1-methoxy-2-propyl acetate 124.91
    2-(2-methoxypropoxy) propanol 72.1
    mesitylene 42.38
    ε-caprolactone 243.31
    p-cymene 54.68
    epichlorohydrin 440.86
    1,1,1-trichloroethane 153.47
    2-aminoethanol 34.18
    morpholine-4-carbaldehyde 345.17
    sulfolane 464.06
    2,2,4-trimethylpentane 8.99
    2-methyltetrahydrofuran 325.86
    n-hexyl acetate 95.84
    isooctane 7.66
    2-(2-butoxyethoxy)ethanol 100.15
    sec-butyl acetate 56.63
    tert-butyl acetate 94.23
    decalin 13.78
    glycerin 40.81
    diglyme 208.97
    acrylic acid 53.81
    isopropyl myristate 48.06
    n-butyric acid 89.81
    acetyl acetate 55.69
    di(2-ethylhexyl) phthalate 49.62
    ethyl propionate 66.39
    nitromethane 124.06
    1,2-diethoxyethane 104.59
    benzonitrile 142.15
    trioctyl phosphate 38.84
    1-bromopropane 110.2
    gamma-valerolactone 548.15
    n-decanol 36.25
    triethyl phosphate 46.42
    4-methyl-2-pentanol 35.9
    propionitrile 65.7
    vinylene carbonate 183.35
    1,1,2-trichlorotrifluoroethane 213.54
    DMS 70.28
    cumene 37.83
    2-octanol 44.69
    2-hexanone 104.14
    octyl acetate 57.6
    limonene 73.74
    1,2-dimethoxyethane 195.64
    ethyl orthosilicate 47.19
    tributyl phosphate 40.57
    diacetone alcohol 115.27
    N,N-dimethylaniline 94.6
    acrylonitrile 85.25
    aniline 121.09
    1,3-propanediol 57.14
    bromobenzene 152.64
    dibromomethane 185.05
    1,1,2,2-tetrachloroethane 307.01
    2-methyl-cyclohexyl acetate 88.36
    tetrabutyl urea 67.56
    diisobutyl methanol 41.11
    2-phenylethanol 117.81
    styrene 75.66
    dioctyl adipate 66.32
    dimethyl sulfate 120.3
    ethyl butyrate 84.44
    methyl lactate 65.53
    butyl lactate 77.05
    diethyl carbonate 54.6
    propanediol butyl ether 77.02
    triethyl orthoformate 68.24
    p-tert-butyltoluene 54.65
    methyl 4-tert-butylbenzoate 108.9
    morpholine 322.77
    tert-butylamine 43.48
    n-dodecanol 29.14
    dimethoxymethane 243.8
    ethylene carbonate 136.84
    cyrene 138.61
    2-ethoxyethyl acetate 122.6
    2-ethylhexyl acetate 82.47
    1,2,4-trichlorobenzene 151.89
    4-methylpyridine 257.56
    dibutyl ether 59.35
    2,6-dimethyl-4-heptanol 41.11
    DEF 171.85
    dimethyl isosorbide 197.05
    tetrachloroethylene 177.86
    eugenol 108.79
    triacetin 82.03
    span 80 78.81
    1,4-butanediol 26.76
    1,1-dichloroethane 141.61
    2-methyl-1-pentanol 47.75
    methyl formate 117.45
    2-methyl-1-butanol 59.85
    n-decane 13.13
    butyronitrile 83.57
    3,7-dimethyl-1-octanol 46.42
    1-chlorooctane 44.1
    1-chlorotetradecane 20.48
    n-nonane 12.36
    undecane 9.86
    tert-butylcyclohexane 12.59
    cyclooctane 11.39
    cyclopentanol 132.89
    tetrahydropyran 289.61
    tert-amyl methyl ether 77.45
    2,5,8-trioxanonane 138.94
    1-hexene 30.69
    2-isopropoxyethanol 67.66
    2,2,2-trifluoroethanol 28.75
    methyl butyrate 98.09

    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