Antimony pentafluoride

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  • Identifiers

    CAS number
    7783-70-2

    Molecular formula
    F5Sb

    SMILES
    F[Sb](F)(F)(F)F

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 56.04%
    Sweet 23.51%
    Fishy 22.66%
    Savory 19.58%
    Sulfurous 19.31%
    Meaty 18.93%
    Clean 15.05%
    Cooling 14.86%
    Fresh 14.13%
    Green 14.01%

     

  • Properties

    pKa est.
    -5.26 (strong acid)

    Molecular weight
    216.752 g/mol

    Melting point expt.

    • 47 °F (EPA, 1998)
    • 8.3 °C

    Boiling point

    • 286 °F at 760 mmHg (EPA, 1998)
    • 141 °C

    Flash point

    • -12.12 ˚C est.

    Solubility expt.

    • Reacts violently with water
    • Soluble in water and potassium fluoride
    • Soluble in potassium fluoride (KF), liquid sulfur dioxide
    • Solubility in water: reaction

  • Synonyms

    • ANTIMONY PENTAFLUORIDE
    • Antimony(V) fluoride
    • 7783-70-2
    • Pentafluoroantimony
    • Antimony (V) fluoride
    • Antimony(V) pentafluoride
    • Antimony fluoride (SbF5)
    • HSDB 442
    • pentafluoro-lambda5-stibane
    • EINECS 232-021-8
    • UNII-6C93R71VRF
    • UN1732
    • Antimony(V) fluoride compound with graphite
    • 6C93R71VRF
    • DTXSID00893075
    • Antimonypentafluoride
    • pentafluorostiborane
    • pentafluoridoantimony
    • Antimon(V)-fluorid
    • SbF5 cpd
    • MFCD00011219
    • SbF5
    • antimony-penta-fluoride
    • Antimony(5+) fluoride
    • Pentafluoruro de antimonio
    • Antimony(5+) pentafluoride
    • Antimony(V) fluoride, 99%
    • Atomergic antimony pentafluoride
    • CHEBI:193146
    • DTXCID001323029
    • Pentafluoruro de antimonio (Spanish)
    • pentakis(fluoranyl)-$l^{5}-stibane
    • AKOS016015580
    • DB-002634
    • Antimony pentafluoride [UN1732] [Corrosive]
    • A839231
    • Antimony(V) fluoride, 99.99% trace metals basis
    • Q411381
    • Antimony pentafluoride compound with graphite (50/50)
    • Antimony(V) fluoride on graphite, extent of labeling: 50 wt. % loading
    • 232-021-8

  • Applications

    Antimony pentafluoride (CAS 7783-70-2) is a strong Lewis acid used as a catalyst in organic synthesis, particularly for generating carbocation intermediates in alkylation and rearrangement reactions. It also serves as a catalyst for fluorination and hydrofluorination of hydrocarbon substrates to access organofluorine compounds. In superacid systems, when paired with hydrogen fluoride or fluorosulfonic acid, it creates ultra-strong acidic media suitable for challenging transformations in specialty chemical manufacturing. In the polymers/plastics sector, it participates in cationic polymerization of olefins and vinyl ethers to produce specialty polymers. In petrochemical processing and industrial manufacturing, it is used to optimize alkylation and oligomerization steps that shape product streams such as fuels and lubricants. Use is typically subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 472.81
    methanol 614.92
    isopropanol 480.07
    water 122.55
    ethyl acetate 275.88
    n-propanol 356.55
    acetone 719.04
    n-butanol 331.88
    acetonitrile 442.9
    DMF 1411.6
    toluene 147.46
    isobutanol 272.97
    1,4-dioxane 449.51
    methyl acetate 296.23
    THF 816.94
    2-butanone 356.17
    n-pentanol 232.51
    sec-butanol 370.39
    n-hexane 100.47
    ethylene glycol 304.14
    NMP 731.51
    cyclohexane 119.9
    DMSO 1641.65
    n-butyl acetate 161.04
    n-octanol 194.56
    chloroform 510.41
    n-propyl acetate 195.95
    acetic acid 362.22
    dichloromethane 556.89
    cyclohexanone 296.17
    propylene glycol 270.0
    isopropyl acetate 229.04
    DMAc 869.36
    2-ethoxyethanol 454.4
    isopentanol 262.23
    n-heptane 106.93
    ethyl formate 250.49
    1,2-dichloroethane 420.3
    n-hexanol 210.66
    2-methoxyethanol 770.89
    isobutyl acetate 112.42
    tetrachloromethane 186.55
    n-pentyl acetate 176.05
    transcutol 448.7
    n-heptanol 175.82
    ethylbenzene 107.01
    MIBK 254.45
    2-propoxyethanol 396.42
    tert-butanol 565.36
    MTBE 381.63
    2-butoxyethanol 277.22
    propionic acid 232.07
    o-xylene 160.28
    formic acid 313.35
    diethyl ether 492.96
    m-xylene 155.15
    p-xylene 124.59
    chlorobenzene 134.06
    dimethyl carbonate 250.57
    n-octane 58.68
    formamide 522.65
    cyclopentanone 455.82
    2-pentanone 364.51
    anisole 226.86
    cyclopentyl methyl ether 390.33
    gamma-butyrolactone 453.76
    1-methoxy-2-propanol 664.87
    pyridine 304.75
    3-pentanone 294.56
    furfural 417.71
    n-dodecane 46.33
    diethylene glycol 401.2
    diisopropyl ether 207.52
    tert-amyl alcohol 388.9
    acetylacetone 401.58
    n-hexadecane 49.05
    acetophenone 210.04
    methyl propionate 298.3
    isopentyl acetate 134.65
    trichloroethylene 436.83
    n-nonanol 177.37
    cyclohexanol 272.43
    benzyl alcohol 193.55
    2-ethylhexanol 140.62
    isooctanol 143.38
    dipropyl ether 265.65
    1,2-dichlorobenzene 147.55
    ethyl lactate 175.06
    propylene carbonate 241.91
    n-methylformamide 549.28
    2-pentanol 311.62
    n-pentane 169.22
    1-propoxy-2-propanol 305.27
    1-methoxy-2-propyl acetate 214.63
    2-(2-methoxypropoxy) propanol 229.66
    mesitylene 141.68
    ε-caprolactone 244.78
    p-cymene 109.6
    epichlorohydrin 467.61
    1,1,1-trichloroethane 338.66
    2-aminoethanol 344.96
    morpholine-4-carbaldehyde 610.82
    sulfolane 657.81
    2,2,4-trimethylpentane 69.83
    2-methyltetrahydrofuran 424.09
    n-hexyl acetate 200.24
    isooctane 60.19
    2-(2-butoxyethoxy)ethanol 278.83
    sec-butyl acetate 134.5
    tert-butyl acetate 265.42
    decalin 49.62
    glycerin 400.39
    diglyme 489.09
    acrylic acid 234.19
    isopropyl myristate 123.37
    n-butyric acid 254.77
    acetyl acetate 184.32
    di(2-ethylhexyl) phthalate 101.98
    ethyl propionate 206.59
    nitromethane 625.5
    1,2-diethoxyethane 249.19
    benzonitrile 167.73
    trioctyl phosphate 99.82
    1-bromopropane 311.05
    gamma-valerolactone 457.25
    n-decanol 146.26
    triethyl phosphate 123.81
    4-methyl-2-pentanol 193.48
    propionitrile 276.01
    vinylene carbonate 209.04
    1,1,2-trichlorotrifluoroethane 407.43
    DMS 165.12
    cumene 96.26
    2-octanol 161.57
    2-hexanone 217.41
    octyl acetate 142.3
    limonene 141.46
    1,2-dimethoxyethane 653.4
    ethyl orthosilicate 127.18
    tributyl phosphate 102.41
    diacetone alcohol 353.83
    N,N-dimethylaniline 242.45
    acrylonitrile 324.09
    aniline 210.95
    1,3-propanediol 371.17
    bromobenzene 134.31
    dibromomethane 441.15
    1,1,2,2-tetrachloroethane 446.92
    2-methyl-cyclohexyl acetate 134.8
    tetrabutyl urea 165.92
    diisobutyl methanol 135.59
    2-phenylethanol 174.14
    styrene 119.26
    dioctyl adipate 136.68
    dimethyl sulfate 429.18
    ethyl butyrate 173.97
    methyl lactate 270.23
    butyl lactate 166.56
    diethyl carbonate 127.96
    propanediol butyl ether 263.68
    triethyl orthoformate 148.67
    p-tert-butyltoluene 122.63
    methyl 4-tert-butylbenzoate 239.41
    morpholine 502.31
    tert-butylamine 427.08
    n-dodecanol 124.11
    dimethoxymethane 897.77
    ethylene carbonate 185.09
    cyrene 243.15
    2-ethoxyethyl acetate 186.79
    2-ethylhexyl acetate 112.94
    1,2,4-trichlorobenzene 163.57
    4-methylpyridine 296.79
    dibutyl ether 174.82
    2,6-dimethyl-4-heptanol 135.59
    DEF 458.63
    dimethyl isosorbide 337.69
    tetrachloroethylene 343.53
    eugenol 250.77
    triacetin 185.78
    span 80 214.38
    1,4-butanediol 199.47
    1,1-dichloroethane 373.37
    2-methyl-1-pentanol 176.31
    methyl formate 424.63
    2-methyl-1-butanol 253.15
    n-decane 66.87
    butyronitrile 264.75
    3,7-dimethyl-1-octanol 153.07
    1-chlorooctane 133.39
    1-chlorotetradecane 75.3
    n-nonane 68.27
    undecane 54.31
    tert-butylcyclohexane 51.49
    cyclooctane 65.81
    cyclopentanol 336.94
    tetrahydropyran 349.7
    tert-amyl methyl ether 318.89
    2,5,8-trioxanonane 382.1
    1-hexene 167.39
    2-isopropoxyethanol 307.95
    2,2,2-trifluoroethanol 238.67
    methyl butyrate 233.43

    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