Butane

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  • Identifiers

    CAS number
    106-97-8

    Molecular formula
    C4H10

    SMILES
    CCCC

    Safety labels

    Flammable
    Flammable

    Compressed Gas
    Compressed Gas

  • Odor profile

    Fragrance
    Ethereal 67.47%
    Sweet 53.68%
    Gassy 48.6%
    Solvent 35.87%
    Musty 27.19%
    Alcoholic 25.57%
    Fresh 25.48%
    Pungent 21.37%
    Camphoreous 20.12%
    Fermented 20.1%

     

    Flavor
    Alkane 58.82%
    Ethereal 37.82%
    Gasoline 36.63%
    Sweet 27.79%
    Fishy 27.55%
    Fruity 25.66%
    Pungent 22.37%
    Rotten 22.01%
    Decomposing cabbage 20.01%
    Earthy 19.43%

     

    Odor impact est.
    Low

    Odor threshold

    • Odor Threshold Low: 1.2 [ppm]. Odor Threshold High: 6.5 [ppm]. Odor threshold from ACGIH
    • Butane's odor can be detected between 2.9 and 14.6 mg/cu m and in water at 6.2 ppm.
    • 2700 uL/L
    • Butane has an odor threshold of 2.8500 mg/cu m (low) and 14.6300 mg/ cu m (high).

  • Properties

    XLogP3-AA
    2.9

    pKa est.
    10.38 (weak base)

    Molecular weight
    58.12 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -217.1 °F (NTP, 1992)
    • -138.3 °C
    • -138 °C
    • -217 °F

    Boiling point

    • 31.1 °F at 760 mmHg (NTP, 1992)
    • -0.50 °C
    • -0.5 °C
    • 31 °F

    Flash point

    • -63.81 ˚C est.
    • -76 °F (NTP, 1992)
    • -60 °C
    • Gas: -76 °F (-60 °C) (Closed cup)
    • -76 °F
    • NA (Gas)

    Solubility expt.

    • 61 mg/L at 68 °F (NTP, 1992)
    • In water, 61.2 mg/L at 25 °C
    • Very soluble in ethanol, ethyl ether, chloroform
    • Solubility in water, g/100ml at 20 °C: 0.0061
    • Slight

  • Synonyms

    • BUTANE
    • n-Butane
    • 106-97-8
    • Diethyl
    • Methylethylmethane
    • butan
    • Butanen
    • Butani
    • Butyl hydride
    • Butane, pure
    • HC 600
    • A 21 (lowing agent)
    • R 600
    • CCRIS 2279
    • HSDB 944
    • n-Butan
    • UNII-6LV4FOR43R
    • EINECS 203-448-7
    • 6LV4FOR43R
    • E943a
    • Butane [NF]
    • n-C4H10
    • INS NO.943
    • CHEBI:37808
    • INS-943
    • butane phase II
    • DTXSID7024665
    • E-943
    • E 943a
    • E-943a
    • EC 203-448-7
    • Butane (NF)
    • BUTANE (II)
    • BUTANE [II]
    • BUTANE (MART.)
    • BUTANE [MART.]
    • R-600
    • Butanen [Dutch]
    • Butani [Italian]
    • BUTANE (D10)
    • BUTANE (1-D1)
    • BUTANE (2-D1)
    • normal-Butane
    • UN1011
    • 1,2-dimethyethane
    • 1,2-dimethylethane
    • 1,2-dimethyl-ethane
    • Butane, 99%
    • Freon 600
    • BUTANE [HSDB]
    • BUTANE [FCC]
    • BUTANE [WHO-DD]
    • BUTANE [MI]
    • n-Butane;Methylethylmethane
    • Hydrocarbon propellant A-17
    • CHEMBL134702
    • DTXCID404665
    • H-C4H9
    • DTXSID00179629
    • DTXSID50178046
    • BCP32076
    • Butane 2000 microg/mL in Methanol
    • AKOS015917446
    • AKOS032949915
    • UN 1011
    • B0677
    • NS00008355
    • C21390
    • D03186
    • Q134192
    • Butane, fuel for Micro Torch, contains no CFC gases
    • InChI=1/C4H10/c1-3-4-2/h3-4H2,1-2H
    • 06005800-A997-4214-BF1C-5063E9E46167
    • 203-448-7

  • Applications

    Butane (CAS 106-97-8) is used broadly as a fuel gas and processing medium in industry, with common applications including: 1) LPG fuel for heating, cooking, and portable appliances; 2) Propellant in aerosol products such as cosmetics, household cleaners, and fragrance sprays; 3) Non-polar solvent and extraction medium for essential oils, flavors, and natural fragrance components; 4) Petrochemical feedstock for producing light olefins (propene, butenes) and, downstream, butadiene and related polymers; 5) Solvent and processing aid in coatings, inks, adhesives, and cleaning formulations in industrial manufacturing.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 107.27
    methanol 64.52
    isopropanol 102.71
    water 0.03
    ethyl acetate 202.21
    n-propanol 132.18
    acetone 103.95
    n-butanol 165.38
    acetonitrile 86.72
    DMF 72.9
    toluene 132.01
    isobutanol 95.63
    1,4-dioxane 251.36
    methyl acetate 116.34
    THF 520.91
    2-butanone 158.98
    n-pentanol 104.89
    sec-butanol 149.65
    n-hexane 248.15
    ethylene glycol 12.77
    NMP 140.41
    cyclohexane 262.56
    DMSO 103.32
    n-butyl acetate 545.46
    n-octanol 113.39
    chloroform 528.96
    n-propyl acetate 146.73
    acetic acid 80.42
    dichloromethane 366.97
    cyclohexanone 261.59
    propylene glycol 31.59
    isopropyl acetate 140.45
    DMAc 76.14
    2-ethoxyethanol 82.17
    isopentanol 138.98
    n-heptane 502.28
    ethyl formate 75.67
    1,2-dichloroethane 229.45
    n-hexanol 320.81
    2-methoxyethanol 112.35
    isobutyl acetate 100.77
    tetrachloromethane 169.56
    n-pentyl acetate 161.34
    transcutol 401.26
    n-heptanol 127.99
    ethylbenzene 80.36
    MIBK 109.43
    2-propoxyethanol 245.5
    tert-butanol 158.99
    MTBE 196.45
    2-butoxyethanol 143.49
    propionic acid 95.19
    o-xylene 77.03
    formic acid 11.37
    diethyl ether 281.57
    m-xylene 80.15
    p-xylene 92.68
    chlorobenzene 168.5
    dimethyl carbonate 27.96
    n-octane 109.76
    formamide 14.02
    cyclopentanone 290.07
    2-pentanone 173.35
    anisole 105.79
    cyclopentyl methyl ether 273.54
    gamma-butyrolactone 248.05
    1-methoxy-2-propanol 115.65
    pyridine 255.38
    3-pentanone 131.69
    furfural 194.58
    n-dodecane 48.36
    diethylene glycol 94.55
    diisopropyl ether 112.28
    tert-amyl alcohol 185.77
    acetylacetone 134.23
    n-hexadecane 53.26
    acetophenone 90.76
    methyl propionate 107.56
    isopentyl acetate 350.01
    trichloroethylene 386.53
    n-nonanol 112.28
    cyclohexanol 173.66
    benzyl alcohol 65.51
    2-ethylhexanol 332.55
    isooctanol 107.09
    dipropyl ether 584.04
    1,2-dichlorobenzene 152.28
    ethyl lactate 51.31
    propylene carbonate 181.75
    n-methylformamide 37.23
    2-pentanol 147.7
    n-pentane 181.53
    1-propoxy-2-propanol 316.57
    1-methoxy-2-propyl acetate 230.13
    2-(2-methoxypropoxy) propanol 138.75
    mesitylene 59.62
    ε-caprolactone 240.72
    p-cymene 137.42
    epichlorohydrin 260.58
    1,1,1-trichloroethane 340.2
    2-aminoethanol 36.46
    morpholine-4-carbaldehyde 137.85
    sulfolane 249.04
    2,2,4-trimethylpentane 65.69
    2-methyltetrahydrofuran 457.74
    n-hexyl acetate 183.14
    isooctane 52.34
    2-(2-butoxyethoxy)ethanol 197.86
    sec-butyl acetate 110.32
    tert-butyl acetate 151.17
    decalin 91.94
    glycerin 36.74
    diglyme 304.69
    acrylic acid 65.15
    isopropyl myristate 108.57
    n-butyric acid 183.82
    acetyl acetate 124.08
    di(2-ethylhexyl) phthalate 69.04
    ethyl propionate 132.73
    nitromethane 82.41
    1,2-diethoxyethane 338.75
    benzonitrile 119.74
    trioctyl phosphate 62.31
    1-bromopropane 349.8
    gamma-valerolactone 223.61
    n-decanol 87.69
    triethyl phosphate 120.62
    4-methyl-2-pentanol 85.04
    propionitrile 145.05
    vinylene carbonate 120.02
    1,1,2-trichlorotrifluoroethane 162.48
    DMS 85.81
    cumene 60.18
    2-octanol 91.67
    2-hexanone 162.42
    octyl acetate 119.26
    limonene 257.21
    1,2-dimethoxyethane 190.76
    ethyl orthosilicate 134.91
    tributyl phosphate 86.58
    diacetone alcohol 127.06
    N,N-dimethylaniline 72.58
    acrylonitrile 111.51
    aniline 107.35
    1,3-propanediol 64.07
    bromobenzene 206.34
    dibromomethane 354.87
    1,1,2,2-tetrachloroethane 349.71
    2-methyl-cyclohexyl acetate 200.02
    tetrabutyl urea 94.83
    diisobutyl methanol 186.28
    2-phenylethanol 138.31
    styrene 97.32
    dioctyl adipate 128.54
    dimethyl sulfate 40.75
    ethyl butyrate 358.87
    methyl lactate 43.84
    butyl lactate 108.29
    diethyl carbonate 195.99
    propanediol butyl ether 88.9
    triethyl orthoformate 257.47
    p-tert-butyltoluene 134.2
    methyl 4-tert-butylbenzoate 103.04
    morpholine 279.3
    tert-butylamine 162.59
    n-dodecanol 74.53
    dimethoxymethane 81.75
    ethylene carbonate 107.07
    cyrene 71.71
    2-ethoxyethyl acetate 141.4
    2-ethylhexyl acetate 337.74
    1,2,4-trichlorobenzene 161.2
    4-methylpyridine 195.3
    dibutyl ether 338.81
    2,6-dimethyl-4-heptanol 186.28
    DEF 152.47
    dimethyl isosorbide 228.17
    tetrachloroethylene 227.11
    eugenol 94.38
    triacetin 127.14
    span 80 179.54
    1,4-butanediol 22.68
    1,1-dichloroethane 258.82
    2-methyl-1-pentanol 112.51
    methyl formate 27.14
    2-methyl-1-butanol 137.35
    n-decane 90.37
    butyronitrile 185.1
    3,7-dimethyl-1-octanol 151.62
    1-chlorooctane 150.29
    1-chlorotetradecane 68.17
    n-nonane 104.98
    undecane 62.58
    tert-butylcyclohexane 84.24
    cyclooctane 118.29
    cyclopentanol 166.31
    tetrahydropyran 456.7
    tert-amyl methyl ether 174.38
    2,5,8-trioxanonane 216.94
    1-hexene 330.91
    2-isopropoxyethanol 79.47
    2,2,2-trifluoroethanol 20.62
    methyl butyrate 163.25

    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