Silicon tetrachloride

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  • Identifiers

    CAS number
    10026-04-7

    Molecular formula
    Cl4Si

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

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 54.47%
    Sweet 29.13%
    Floral 26.08%
    Fishy 25.91%
    Balsamic 17.87%
    Clean 16.4%
    Rose 15.72%
    Woody 15.65%
    Animal 15.15%
    Fresh 14.76%

     

    Flavor
    Odorless 37.28%
    Sulfurous 20.59%
    Sulfury 19.04%
    Glue 18.12%
    Fishy 18.12%
    Bloody 18.09%
    Rotten 17.97%
    Meaty 17.66%
    Mousy 17.64%
    Bouillon 17.6%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    -11.51 (strong acid)

    Molecular weight
    169.9 g/mol

    Melting point expt.

    • -94 °F (USCG, 1999)
    • -70 °C
    • -68 °C

    Boiling point

    • 135.7 °F at 760 mmHg (USCG, 1999)
    • 135.7 °F
    • 59 °C
    • 57 °C

    Flash point

    • 12.64 ˚C est.

    Solubility expt.

    • Miscible with benzene, ether, chloroform, petroleum ether
    • Miscible in all proportions with carbon tetrachloride, tin tetrachloride, titanium chloride, sulfur mono- & dichlorides
    • Solubility in water: reaction

  • Synonyms

    • Tetrachlorosilane
    • SILICON TETRACHLORIDE
    • 10026-04-7
    • Silane, tetrachloro-
    • Silicon chloride
    • Perchlorosilane
    • Tetrachlorosilicon
    • Chlorid kremicity
    • Silicio(tetracloruro di)
    • Siliciumtetrachlorid
    • Siliciumtetrachloride
    • Silicon chloride (SiCl4)
    • Silicon(IV) chloride
    • Tetrachlorure de silicium
    • Silicium(tetrachlorure de)
    • CCRIS 1324
    • HSDB 683
    • EINECS 233-054-0
    • SiCl4
    • UNII-96L75U0BM3
    • 96L75U0BM3
    • EC 233-054-0
    • MFCD00011229
    • Siliciumtetrachlorid [German]
    • Chlorid kremicity [Czech]
    • Siliciumtetrachloride [Dutch]
    • Tetrachlorure de silicium [French]
    • Silicium(tetrachlorure de) [French]
    • UN1818
    • Perchlorosilane; Silicon chloride (SiCl4); LS 10; LS 10 (silane); Silicon tetrachloride
    • Silicium Muriaticum
    • SIC-L(TM)
    • Silicon tetrachloride, 99%
    • DTXSID0029711
    • SILICON TETRACHLORIDE [MI]
    • SILICON TETRACHLORIDE [HSDB]
    • AKOS015902307
    • Silicon(IV)chloride, fiber optic grade
    • UN 1818
    • s15300
    • BS-42095
    • Silicon(IV) chloride, (99.9999%-Si)
    • NS00047901
    • T0636
    • S15310
    • Silicon tetrachloride [UN1818] [Corrosive]
    • Q413709
    • Silicon tetrachloride, 99.998% trace metals basis
    • Silicon tetrachloride, packaged for use in deposition systems
    • 233-054-0

  • Applications

    Silicon tetrachloride (CAS 10026-04-7) is a key precursor in silicon metal production for the electronics industry (SiCl4 is reduced in the Siemens process to yield high-purity silicon), a feedstock for silica via hydrolysis to form silica gel, fumed silica, and SiO2 coatings, an intermediate for chlorosilanes and silicone polymers (siloxanes) used in coatings, adhesives, and elastomers, and a precursor in chemical vapor deposition to form SiO2 films on surfaces and optical coatings.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 434.94
    methanol 497.98
    isopropanol 397.28
    water 26.69
    ethyl acetate 261.52
    n-propanol 352.57
    acetone 454.02
    n-butanol 374.29
    acetonitrile 176.99
    DMF 1033.79
    toluene 236.54
    isobutanol 275.1
    1,4-dioxane 512.48
    methyl acetate 226.69
    THF 924.58
    2-butanone 310.81
    n-pentanol 230.69
    sec-butanol 349.87
    n-hexane 152.01
    ethylene glycol 201.31
    NMP 667.89
    cyclohexane 219.57
    DMSO 876.52
    n-butyl acetate 188.59
    n-octanol 226.27
    chloroform 688.63
    n-propyl acetate 174.48
    acetic acid 286.19
    dichloromethane 602.67
    cyclohexanone 395.03
    propylene glycol 198.92
    isopropyl acetate 223.81
    DMAc 670.22
    2-ethoxyethanol 351.37
    isopentanol 280.03
    n-heptane 160.31
    ethyl formate 206.77
    1,2-dichloroethane 422.82
    n-hexanol 265.64
    2-methoxyethanol 672.13
    isobutyl acetate 124.64
    tetrachloromethane 258.2
    n-pentyl acetate 203.48
    transcutol 432.85
    n-heptanol 228.85
    ethylbenzene 137.47
    MIBK 236.43
    2-propoxyethanol 419.63
    tert-butanol 460.87
    MTBE 363.52
    2-butoxyethanol 316.95
    propionic acid 203.92
    o-xylene 193.45
    formic acid 188.41
    diethyl ether 488.82
    m-xylene 203.28
    p-xylene 166.57
    chlorobenzene 211.98
    dimethyl carbonate 203.1
    n-octane 87.62
    formamide 289.32
    cyclopentanone 499.53
    2-pentanone 347.65
    anisole 227.85
    cyclopentyl methyl ether 513.18
    gamma-butyrolactone 455.11
    1-methoxy-2-propanol 573.17
    pyridine 351.92
    3-pentanone 282.35
    furfural 429.88
    n-dodecane 57.37
    diethylene glycol 373.37
    diisopropyl ether 210.69
    tert-amyl alcohol 362.73
    acetylacetone 322.47
    n-hexadecane 61.62
    acetophenone 200.61
    methyl propionate 283.13
    isopentyl acetate 163.74
    trichloroethylene 534.52
    n-nonanol 197.49
    cyclohexanol 371.4
    benzyl alcohol 197.82
    2-ethylhexanol 181.6
    isooctanol 182.55
    dipropyl ether 308.27
    1,2-dichlorobenzene 212.19
    ethyl lactate 130.65
    propylene carbonate 247.63
    n-methylformamide 390.53
    2-pentanol 326.38
    n-pentane 228.0
    1-propoxy-2-propanol 332.51
    1-methoxy-2-propyl acetate 224.13
    2-(2-methoxypropoxy) propanol 204.1
    mesitylene 162.79
    ε-caprolactone 307.41
    p-cymene 126.83
    epichlorohydrin 478.09
    1,1,1-trichloroethane 381.92
    2-aminoethanol 269.03
    morpholine-4-carbaldehyde 576.47
    sulfolane 599.85
    2,2,4-trimethylpentane 86.3
    2-methyltetrahydrofuran 531.99
    n-hexyl acetate 224.62
    isooctane 78.92
    2-(2-butoxyethoxy)ethanol 275.29
    sec-butyl acetate 139.81
    tert-butyl acetate 256.7
    decalin 84.72
    glycerin 287.91
    diglyme 465.45
    acrylic acid 192.96
    isopropyl myristate 127.18
    n-butyric acid 283.18
    acetyl acetate 163.86
    di(2-ethylhexyl) phthalate 106.99
    ethyl propionate 186.2
    nitromethane 349.34
    1,2-diethoxyethane 238.5
    benzonitrile 170.42
    trioctyl phosphate 102.16
    1-bromopropane 351.81
    gamma-valerolactone 497.19
    n-decanol 155.66
    triethyl phosphate 117.31
    4-methyl-2-pentanol 196.56
    propionitrile 190.05
    vinylene carbonate 218.71
    1,1,2-trichlorotrifluoroethane 394.57
    DMS 155.42
    cumene 110.24
    2-octanol 203.06
    2-hexanone 203.45
    octyl acetate 152.4
    limonene 175.53
    1,2-dimethoxyethane 526.96
    ethyl orthosilicate 125.77
    tributyl phosphate 98.58
    diacetone alcohol 306.75
    N,N-dimethylaniline 246.2
    acrylonitrile 207.4
    aniline 261.78
    1,3-propanediol 341.19
    bromobenzene 217.56
    dibromomethane 483.6
    1,1,2,2-tetrachloroethane 547.92
    2-methyl-cyclohexyl acetate 150.27
    tetrabutyl urea 153.99
    diisobutyl methanol 146.42
    2-phenylethanol 200.07
    styrene 157.76
    dioctyl adipate 148.52
    dimethyl sulfate 319.07
    ethyl butyrate 177.69
    methyl lactate 218.98
    butyl lactate 167.96
    diethyl carbonate 121.07
    propanediol butyl ether 260.7
    triethyl orthoformate 159.65
    p-tert-butyltoluene 142.6
    methyl 4-tert-butylbenzoate 253.2
    morpholine 586.59
    tert-butylamine 374.02
    n-dodecanol 129.24
    dimethoxymethane 762.82
    ethylene carbonate 193.73
    cyrene 211.24
    2-ethoxyethyl acetate 201.68
    2-ethylhexyl acetate 149.57
    1,2,4-trichlorobenzene 232.53
    4-methylpyridine 351.26
    dibutyl ether 192.75
    2,6-dimethyl-4-heptanol 146.42
    DEF 448.57
    dimethyl isosorbide 313.61
    tetrachloroethylene 424.23
    eugenol 235.06
    triacetin 183.75
    span 80 229.77
    1,4-butanediol 159.66
    1,1-dichloroethane 393.95
    2-methyl-1-pentanol 181.42
    methyl formate 298.76
    2-methyl-1-butanol 271.8
    n-decane 90.51
    butyronitrile 211.41
    3,7-dimethyl-1-octanol 163.0
    1-chlorooctane 168.12
    1-chlorotetradecane 88.43
    n-nonane 95.88
    undecane 68.68
    tert-butylcyclohexane 86.76
    cyclooctane 116.31
    cyclopentanol 419.48
    tetrahydropyran 506.6
    tert-amyl methyl ether 339.4
    2,5,8-trioxanonane 337.55
    1-hexene 228.18
    2-isopropoxyethanol 257.58
    2,2,2-trifluoroethanol 167.38
    methyl butyrate 213.27

    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