Boron trichloride

Overview IFRA Request a quote

  • Identifiers

    CAS number
    10294-34-5

    Molecular formula
    BCl3

    SMILES
    B(Cl)(Cl)Cl

    Safety labels

    Compressed Gas
    Compressed Gas

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

  • Odor profile

    Fragrance
    Odorless 50.5%
    Fishy 40.15%
    Sweet 27.08%
    Ripe 21.1%
    Cheesy 19.25%
    Oily 16.8%
    Animal 16.26%
    Floral 15.43%
    Musty 15.36%
    Fresh 15.27%

     

    Flavor
    Odorless 39.39%
    Sulfury 24.65%
    Sulfurous 24.08%
    Fishy 23.44%
    Meaty 22.5%
    Roasted 18.93%
    Glue 18.77%
    Mousy 18.72%
    Bloody 18.67%
    Rotten 18.65%

     

    Odor impact est.
    Medium

  • Properties

    pKa est.
    8.06 (weak base)

    Molecular weight
    117.2 g/mol

    Melting point expt.

    • -161 °F (EPA, 1998)
    • -107.3 °C
    • -107 °C

    Boiling point

    • 54.5 °F at 760 mmHg (EPA, 1998)
    • 12.5 °C

    Flash point

    • -33.29 ˚C est.

    Solubility expt.

    • Solubility in water: reaction

  • Synonyms

    • BORON TRICHLORIDE
    • Trichloroborane
    • 10294-34-5
    • Borane, trichloro-
    • Boron chloride
    • Borontrichloride
    • Trichloroboron
    • BCl3
    • Boron chloride (BCl3)
    • HSDB 326
    • Chlorure de bore
    • EINECS 233-658-4
    • UNII-K748471RAG
    • K748471RAG
    • UN 1741
    • DTXSID2041676
    • EC 233-658-4
    • MFCD00011313
    • 75507-65-2
    • Chlorure de bore (French)
    • Boron Trichloride - 2-Chloroethanol Reagent (5-10%) [for Esterification] (1mL*10)
    • trichloroboran
    • Trichloro-borane
    • boron tri-chloride
    • Trona boron trichloride
    • Boron trichloride [UN1741] [Poison gas]
    • Boron trichloride 99.9%
    • Boron trichloride, 99.9%
    • BORON CHLORIDE(BCL3)
    • BORON TRICHLORIDE [MI]
    • BORON TRICHLORIDE [HSDB]
    • DTXCID0021676
    • FAQYAMRNWDIXMY-UHFFFAOYSA-
    • InChI=1/BCl3/c2-1(3)4
    • Boron Trichloride - Methanol Reagent
    • AKOS005111101
    • 37226-51-0
    • B3556
    • B3967
    • B3968
    • B4415
    • B4416
    • Boron Trichloride - 2-Chloroethanol Reagent
    • X0032
    • X0033
    • Q415872
    • 233-658-4

  • Applications

    Boron trichloride (BCl3) is a highly reactive Lewis acid used as a catalyst and a synthetic building block in chemical manufacturing. It is used to catalyze cationic polymerization of olefins (notably isobylene) to polyisobutylene, which is used in lubricants, tackifiers and sealants. It also enables Friedel–Crafts-type alkylation and acylation of aromatic substrates in the production of specialty chemicals and polymers. In organoboron chemistry, it serves as a starting material for preparing boron-containing reagents and materials, including boron-doped films and other boron-containing polymers used in electronics and optics. It is also used as a boron source in deposition processes (e.g., chemical vapor deposition, CVD, and metal-organic CVD, MOCVD) to fabricate boron-containing semiconductor components or protective coatings. As a reactive intermediate, it is employed in the synthesis of various boron-containing intermediates for research and industrial applications. Usage is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 469.2
    methanol 503.08
    isopropanol 439.67
    water 16.48
    ethyl acetate 247.34
    n-propanol 373.18
    acetone 492.08
    n-butanol 377.3
    acetonitrile 182.01
    DMF 976.11
    toluene 208.47
    isobutanol 279.41
    1,4-dioxane 484.0
    methyl acetate 213.62
    THF 917.51
    2-butanone 311.04
    n-pentanol 257.29
    sec-butanol 357.95
    n-hexane 166.56
    ethylene glycol 188.27
    NMP 581.73
    cyclohexane 185.61
    DMSO 847.55
    n-butyl acetate 190.47
    n-octanol 221.92
    chloroform 461.48
    n-propyl acetate 171.3
    acetic acid 269.64
    dichloromethane 427.98
    cyclohexanone 355.3
    propylene glycol 191.89
    isopropyl acetate 205.0
    DMAc 618.25
    2-ethoxyethanol 375.37
    isopentanol 288.26
    n-heptane 142.29
    ethyl formate 183.86
    1,2-dichloroethane 338.82
    n-hexanol 272.27
    2-methoxyethanol 648.37
    isobutyl acetate 123.16
    tetrachloromethane 193.89
    n-pentyl acetate 198.04
    transcutol 463.18
    n-heptanol 223.37
    ethylbenzene 129.51
    MIBK 230.02
    2-propoxyethanol 415.76
    tert-butanol 490.9
    MTBE 374.26
    2-butoxyethanol 307.05
    propionic acid 193.62
    o-xylene 164.43
    formic acid 145.78
    diethyl ether 465.06
    m-xylene 182.91
    p-xylene 152.44
    chlorobenzene 175.66
    dimethyl carbonate 184.13
    n-octane 83.76
    formamide 230.75
    cyclopentanone 464.12
    2-pentanone 347.13
    anisole 221.1
    cyclopentyl methyl ether 459.7
    gamma-butyrolactone 401.47
    1-methoxy-2-propanol 544.71
    pyridine 307.97
    3-pentanone 265.08
    furfural 347.84
    n-dodecane 58.44
    diethylene glycol 363.99
    diisopropyl ether 199.92
    tert-amyl alcohol 364.76
    acetylacetone 325.88
    n-hexadecane 63.29
    acetophenone 184.64
    methyl propionate 259.48
    isopentyl acetate 170.35
    trichloroethylene 409.04
    n-nonanol 192.97
    cyclohexanol 323.65
    benzyl alcohol 182.33
    2-ethylhexanol 174.37
    isooctanol 174.54
    dipropyl ether 277.01
    1,2-dichlorobenzene 166.5
    ethyl lactate 118.54
    propylene carbonate 220.38
    n-methylformamide 348.51
    2-pentanol 330.88
    n-pentane 210.72
    1-propoxy-2-propanol 331.23
    1-methoxy-2-propyl acetate 210.55
    2-(2-methoxypropoxy) propanol 197.48
    mesitylene 149.35
    ε-caprolactone 271.67
    p-cymene 109.72
    epichlorohydrin 429.15
    1,1,1-trichloroethane 307.09
    2-aminoethanol 260.85
    morpholine-4-carbaldehyde 521.49
    sulfolane 504.42
    2,2,4-trimethylpentane 85.23
    2-methyltetrahydrofuran 521.53
    n-hexyl acetate 230.06
    isooctane 83.82
    2-(2-butoxyethoxy)ethanol 273.59
    sec-butyl acetate 133.04
    tert-butyl acetate 252.3
    decalin 83.16
    glycerin 258.37
    diglyme 451.21
    acrylic acid 175.18
    isopropyl myristate 126.29
    n-butyric acid 259.85
    acetyl acetate 151.25
    di(2-ethylhexyl) phthalate 99.19
    ethyl propionate 172.08
    nitromethane 315.22
    1,2-diethoxyethane 256.57
    benzonitrile 151.21
    trioctyl phosphate 95.57
    1-bromopropane 291.27
    gamma-valerolactone 460.32
    n-decanol 150.73
    triethyl phosphate 103.41
    4-methyl-2-pentanol 191.43
    propionitrile 185.45
    vinylene carbonate 184.8
    1,1,2-trichlorotrifluoroethane 316.52
    DMS 144.9
    cumene 103.57
    2-octanol 197.6
    2-hexanone 214.33
    octyl acetate 151.42
    limonene 156.46
    1,2-dimethoxyethane 528.69
    ethyl orthosilicate 111.32
    tributyl phosphate 92.2
    diacetone alcohol 299.07
    N,N-dimethylaniline 214.9
    acrylonitrile 196.3
    aniline 228.12
    1,3-propanediol 336.23
    bromobenzene 180.23
    dibromomethane 354.48
    1,1,2,2-tetrachloroethane 407.08
    2-methyl-cyclohexyl acetate 137.05
    tetrabutyl urea 144.07
    diisobutyl methanol 141.52
    2-phenylethanol 179.22
    styrene 147.92
    dioctyl adipate 144.47
    dimethyl sulfate 272.76
    ethyl butyrate 163.88
    methyl lactate 188.34
    butyl lactate 154.16
    diethyl carbonate 111.8
    propanediol butyl ether 253.89
    triethyl orthoformate 143.26
    p-tert-butyltoluene 124.28
    methyl 4-tert-butylbenzoate 221.22
    morpholine 553.93
    tert-butylamine 373.28
    n-dodecanol 123.11
    dimethoxymethane 711.38
    ethylene carbonate 165.45
    cyrene 191.54
    2-ethoxyethyl acetate 198.13
    2-ethylhexyl acetate 149.26
    1,2,4-trichlorobenzene 186.44
    4-methylpyridine 322.79
    dibutyl ether 199.1
    2,6-dimethyl-4-heptanol 141.52
    DEF 405.36
    dimethyl isosorbide 307.08
    tetrachloroethylene 321.09
    eugenol 212.74
    triacetin 169.26
    span 80 221.44
    1,4-butanediol 166.04
    1,1-dichloroethane 314.05
    2-methyl-1-pentanol 198.78
    methyl formate 257.27
    2-methyl-1-butanol 271.87
    n-decane 88.58
    butyronitrile 212.87
    3,7-dimethyl-1-octanol 162.9
    1-chlorooctane 160.27
    1-chlorotetradecane 83.42
    n-nonane 93.55
    undecane 69.99
    tert-butylcyclohexane 90.0
    cyclooctane 104.58
    cyclopentanol 382.99
    tetrahydropyran 477.93
    tert-amyl methyl ether 327.03
    2,5,8-trioxanonane 330.09
    1-hexene 237.16
    2-isopropoxyethanol 268.67
    2,2,2-trifluoroethanol 130.87
    methyl butyrate 200.73

    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