Sulfuryl fluoride

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  • Identifiers

    CAS number
    2699-79-8

    Molecular formula
    F2O2S

    SMILES
    O=S(=O)(F)F

    Safety labels

    Compressed Gas
    Compressed Gas

    Acute Toxic
    Acute Toxic

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Odorless 86.48%
    Sulfurous 22.12%
    Pungent 20.57%
    Cooked 18.07%
    Savory 17.65%
    Garlic 14.51%
    Onion 14.33%
    Roasted 13.91%
    Alliaceous 12.53%
    Burnt 12.46%

    Scent© AI

  • Properties

    XLogP3-AA
    0.7

    Molecular weight
    102.06 g/mol

    Melting point expt.

    • -212 °F (NIOSH, 2024)
    • -135.82 °C
    • -135.8 °C
    • -212 °F

    Boiling point

    • -68 °F at 760 mmHg (NIOSH, 2024)
    • -55.38 °C
    • -55.3 °C
    • -68 °F

    Flash point est.
    36.25 ˚C

    Solubility expt.

    • 0.2 % at 32 °F (NIOSH, 2024)
    • 4-5 ml gas/100 ml water; 24-27 ml gas/100 ml alc; 136-138 ml gas/100 ml carbon tetrachloride; 210-220 ml gas/100 ml toluene
    • SLIGHTLY SOL IN ALKALIS
    • MISCIBLE WITH METHYL BROMIDE; SPARINGLY SOL IN MOST ORG SOLVENTS
    • In ethanol 0.24 to 0.27 L/L; in toluene 2.1 to 2.2 L/L; in carbon tetrachloride 1.36 to I.38 L/L
    • For more Solubility (Complete) data for SULFURYL FLUORIDE (6 total), please visit the HSDB record page.
    • Solubility in water, ml/100ml: 4-5 (soluble)
    • (32 °F): 0.2%

  • Synonyms

    • SULFURYL FLUORIDE
    • Sulfuryl difluoride
    • Sulfonyl fluoride
    • 2699-79-8
    • Sulphuryl fluoride
    • Vikane
    • Vikane fumigant
    • Sulfuric oxyfluoride
    • Sulphuryl difluoride
    • Sulfur difluoride dioxide
    • Sulphuryl fluoride [ISO]
    • Sulfurylfluorid
    • Fluorure de sulfuryle
    • Caswell No. 816A
    • Fluoro de sulfurilo
    • Fluoro de sulfurilo [Italian]
    • HSDB 828
    • Fluorure de sulfuryle [French]
    • Sulfur dioxide difluoride
    • difluorodioxosulfur
    • sulfonyl difluoride
    • EINECS 220-281-5
    • UN2191
    • EPA Pesticide Chemical Code 078003
    • UNII-64B59K7U6Q
    • difluoridodioxidosulfur
    • 64B59K7U6Q
    • SF2O2
    • SO2F2
    • SULFURYL FLUORIDE [MI]
    • DTXSID9034945
    • Sulfur fluoride oxide (SO2F2)
    • SULFURYL FLUORIDE [HSDB]
    • CHEBI:39287
    • UN 2191
    • FLUORO DE SULFURILO (ITALIAN)
    • FLUORURE DE SULFURYLE (FRENCH)
    • MFCD00153272
    • Sulfuryl difluoride #
    • Sulphuryl fluoride 99%
    • VIKANE GAS FUMIGANT
    • DTXCID7014945
    • Sulfuryl fluoride (ACGIH:OSHA)
    • SULFUR OXYFLUORIDE (SO2F2)
    • SULFUR FLUORIDE OXIDE (SF2O2)
    • SULFUR OXIDE FLUORIDE (SF2O2)
    • USEPA/OPP Pesticide Code: 078003
    • NS00014245
    • Sulfuryl fluoride [UN2191] [Poison gas]
    • Q423633

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 136.63
    methanol 207.57
    isopropanol 112.54
    water 95.31
    ethyl acetate 35.34
    n-propanol 86.96
    acetone 126.27
    n-butanol 76.47
    acetonitrile 71.15
    DMF 431.88
    toluene 11.17
    isobutanol 56.8
    1,4-dioxane 62.41
    methyl acetate 43.94
    THF 131.69
    2-butanone 60.76
    n-pentanol 48.95
    sec-butanol 75.24
    n-hexane 7.21
    ethylene glycol 88.79
    NMP 235.04
    cyclohexane 8.91
    DMSO 583.74
    n-butyl acetate 24.2
    n-octanol 30.14
    chloroform 20.49
    n-propyl acetate 25.56
    acetic acid 58.44
    dichloromethane 34.17
    cyclohexanone 50.14
    propylene glycol 61.97
    isopropyl acetate 26.72
    DMAc 267.4
    2-ethoxyethanol 100.08
    isopentanol 58.44
    n-heptane 10.09
    ethyl formate 44.63
    1,2-dichloroethane 37.8
    n-hexanol 39.87
    2-methoxyethanol 189.53
    isobutyl acetate 11.49
    tetrachloromethane 6.83
    n-pentyl acetate 24.91
    transcutol 78.41
    n-heptanol 31.76
    ethylbenzene 7.25
    MIBK 34.45
    2-propoxyethanol 82.85
    tert-butanol 114.81
    MTBE 53.33
    2-butoxyethanol 55.58
    propionic acid 44.56
    o-xylene 14.28
    formic acid 96.03
    diethyl ether 70.19
    m-xylene 12.11
    p-xylene 8.43
    chlorobenzene 8.26
    dimethyl carbonate 39.1
    n-octane 4.87
    formamide 158.22
    cyclopentanone 79.92
    2-pentanone 58.63
    anisole 21.18
    cyclopentyl methyl ether 54.56
    gamma-butyrolactone 79.54
    1-methoxy-2-propanol 145.57
    pyridine 43.14
    3-pentanone 44.08
    furfural 72.97
    n-dodecane 3.4
    diethylene glycol 91.33
    diisopropyl ether 19.77
    tert-amyl alcohol 79.21
    acetylacetone 49.55
    n-hexadecane 3.58
    acetophenone 25.18
    methyl propionate 45.84
    isopentyl acetate 18.22
    trichloroethylene 28.88
    n-nonanol 27.43
    cyclohexanol 45.98
    benzyl alcohol 27.61
    2-ethylhexanol 21.83
    isooctanol 22.66
    dipropyl ether 34.69
    1,2-dichlorobenzene 8.81
    ethyl lactate 29.09
    propylene carbonate 33.69
    n-methylformamide 163.26
    2-pentanol 58.21
    n-pentane 16.97
    1-propoxy-2-propanol 61.16
    1-methoxy-2-propyl acetate 32.9
    2-(2-methoxypropoxy) propanol 44.33
    mesitylene 10.38
    ε-caprolactone 40.1
    p-cymene 10.21
    epichlorohydrin 64.65
    1,1,1-trichloroethane 14.32
    2-aminoethanol 101.76
    morpholine-4-carbaldehyde 140.17
    sulfolane 142.48
    2,2,4-trimethylpentane 4.96
    2-methyltetrahydrofuran 65.9
    n-hexyl acetate 26.09
    isooctane 4.06
    2-(2-butoxyethoxy)ethanol 54.58
    sec-butyl acetate 14.9
    tert-butyl acetate 28.97
    decalin 2.92
    glycerin 93.38
    diglyme 86.63
    acrylic acid 46.64
    isopropyl myristate 15.33
    n-butyric acid 42.39
    acetyl acetate 18.36
    di(2-ethylhexyl) phthalate 16.6
    ethyl propionate 26.87
    nitromethane 110.52
    1,2-diethoxyethane 34.51
    benzonitrile 18.85
    trioctyl phosphate 15.68
    1-bromopropane 27.33
    gamma-valerolactone 85.06
    n-decanol 22.56
    triethyl phosphate 16.23
    4-methyl-2-pentanol 32.01
    propionitrile 47.42
    vinylene carbonate 29.56
    1,1,2-trichlorotrifluoroethane 59.02
    DMS 19.6
    cumene 6.92
    2-octanol 25.04
    2-hexanone 31.29
    octyl acetate 19.84
    limonene 15.24
    1,2-dimethoxyethane 123.05
    ethyl orthosilicate 16.02
    tributyl phosphate 14.99
    diacetone alcohol 56.91
    N,N-dimethylaniline 29.43
    acrylonitrile 55.92
    aniline 29.51
    1,3-propanediol 91.94
    bromobenzene 5.7
    dibromomethane 27.64
    1,1,2,2-tetrachloroethane 31.07
    2-methyl-cyclohexyl acetate 18.01
    tetrabutyl urea 29.95
    diisobutyl methanol 17.54
    2-phenylethanol 25.07
    styrene 7.83
    dioctyl adipate 19.92
    dimethyl sulfate 68.12
    ethyl butyrate 23.6
    methyl lactate 54.29
    butyl lactate 27.29
    diethyl carbonate 15.92
    propanediol butyl ether 47.12
    triethyl orthoformate 19.76
    p-tert-butyltoluene 11.1
    methyl 4-tert-butylbenzoate 36.87
    morpholine 91.54
    tert-butylamine 72.6
    n-dodecanol 18.24
    dimethoxymethane 180.02
    ethylene carbonate 25.6
    cyrene 47.43
    2-ethoxyethyl acetate 26.68
    2-ethylhexyl acetate 14.62
    1,2,4-trichlorobenzene 10.61
    4-methylpyridine 40.6
    dibutyl ether 19.84
    2,6-dimethyl-4-heptanol 17.54
    DEF 90.35
    dimethyl isosorbide 57.25
    tetrachloroethylene 22.93
    eugenol 40.6
    triacetin 24.16
    span 80 38.22
    1,4-butanediol 48.43
    1,1-dichloroethane 24.56
    2-methyl-1-pentanol 32.24
    methyl formate 104.02
    2-methyl-1-butanol 51.31
    n-decane 5.03
    butyronitrile 45.51
    3,7-dimethyl-1-octanol 21.8
    1-chlorooctane 11.14
    1-chlorotetradecane 5.89
    n-nonane 5.09
    undecane 4.08
    tert-butylcyclohexane 3.05
    cyclooctane 4.71
    cyclopentanol 60.94
    tetrahydropyran 49.48
    tert-amyl methyl ether 48.29
    2,5,8-trioxanonane 71.97
    1-hexene 15.8
    2-isopropoxyethanol 60.24
    2,2,2-trifluoroethanol 43.08
    methyl butyrate 34.46

    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