Ammonium fluoroborate

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  • Identifiers

    CAS number
    13826-83-0

    Molecular formula
    BF4H4N

    SMILES
    [B-](F)(F)(F)F.[NH4+]

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 61.74%
    Sweet 25.71%
    Fishy 25.49%
    Savory 16.84%
    Cooling 16.53%
    Balsamic 14.61%
    Meaty 14.52%
    Clean 14.03%
    Ripe 13.84%
    Animal 13.77%

     

    Flavor
    Odorless 39.81%
    Sulfurous 22.95%
    Sulfury 22.5%
    Meaty 19.86%
    Mild 19.54%
    Fishy 18.47%
    Bloody 18.34%
    Glue 18.32%
    Rotten 18.27%
    Bouillon 18.08%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    5.84 (weak acid)

    Molecular weight
    104.85 g/mol

    Melting point expt.

    • 446 °F (USCG, 1999)
    • 487 °C (decomposes)
    • Sublimes at melting point

    Flash point

    • -10.14 ˚C est.

    Solubility expt.

    • Water solubility (g/100 mL water): 3.09 at -1.0 °C; 5.26 at -1.5 °C; 10.85 at -2.7 °C; 12.20 at 0 °C; 25 at 16 °C; 25.83 at 25 °C; 44.09 at 50 °C; 67.50 at 75 °C; 98.93 at 100 °C; 113.7 at 108.5 °C
    • Solubility in HF at 0 °C: 19.89%
    • Soluble in ammonium hydroxide

  • Synonyms

    • Ammonium tetrafluoroborate
    • 13826-83-0
    • Ammonium fluoroborate
    • AMMONIUM FLUOBORATE
    • Ammonium borofluoride
    • azanium;tetrafluoroborate
    • Ammonium tetrafluoroborate(1-)
    • Borate(1-), tetrafluoro-, ammonium
    • ammonium tetrafluoroboranuide
    • DTXSID8065660
    • C945Z80O8X
    • AMMONIUM FLUROBORATE [HSDB]
    • MFCD06245785
    • AMMONIUM BOROFLUORIDE (NH4BF4)
    • Ammonium fluoborate (6CI)
    • HSDB 6286
    • EINECS 237-531-4
    • ammonium tetrafluroborate
    • azanium tetrafluoroborate
    • arnmonium tetrafluoroborate
    • AMMONIUM FLUROBORATE
    • H4BF4N
    • NH4BF4
    • Ammonium tetrafluoroborate(1)
    • AMMONIUM TETRAFLUOBORATE
    • Ammonium tetrafluoroborate, 99.99% trace metals basis
    • Ammonium tetrafluoroborate, 99.999% trace metals basis
    • DTXCID5034488
    • Ammonium tetrafluoroborate (1-)
    • Ammonium tetrafluoroborate, 99%
    • Borate(1), tetrafluoro, ammonium
    • Ammonium tetrafluoroborate, >=97%
    • (N H4) (B F4)
    • AKOS015832927
    • AKOS015903785
    • AMMONIUM FLUOROBORATE (NH4BF4)
    • FA55588
    • AMMONIUM TETRAFLUOROBORATE (NH4BF4)
    • NS00085105
    • A807365
    • Q4456672
    • Ammonium tetrafluoroborate, trace metals grade 99.999% trace metals basis
    • 237-531-4

  • Applications

    Ammonium fluoroborate (NH4BF4) is primarily used as a fluoride source for fluorination reactions in organic synthesis and as a precursor to boron–fluorine–containing intermediates as well as BF4−-based reagents. It can be viewed as a salt for electrochemical systems or an additive in specialized electrochemical applications such as certain batteries and capacitors. Additionally, NH4BF4 serves as a precursor for the synthesis of fluorinated materials and boron-containing compounds used in advanced polymers and materials science. In research and lab-scale production, it is used as a source of fluorine/boron for synthetic sequences and catalytic systems related to fluorination, subject to local regulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 424.51
    methanol 642.31
    isopropanol 362.63
    water 129.62
    ethyl acetate 76.54
    n-propanol 275.36
    acetone 232.84
    n-butanol 231.22
    acetonitrile 145.59
    DMF 604.58
    toluene 34.63
    isobutanol 169.86
    1,4-dioxane 149.24
    methyl acetate 89.08
    THF 310.63
    2-butanone 121.46
    n-pentanol 146.32
    sec-butanol 226.17
    n-hexane 40.24
    ethylene glycol 253.14
    NMP 241.12
    cyclohexane 29.95
    DMSO 781.99
    n-butyl acetate 47.79
    n-octanol 87.79
    chloroform 84.71
    n-propyl acetate 49.88
    acetic acid 137.03
    dichloromethane 109.3
    cyclohexanone 77.86
    propylene glycol 199.3
    isopropyl acetate 60.56
    DMAc 311.31
    2-ethoxyethanol 239.43
    isopentanol 158.71
    n-heptane 36.13
    ethyl formate 86.81
    1,2-dichloroethane 104.22
    n-hexanol 116.44
    2-methoxyethanol 450.71
    isobutyl acetate 24.11
    tetrachloromethane 30.14
    n-pentyl acetate 53.19
    transcutol 183.03
    n-heptanol 90.62
    ethylbenzene 24.3
    MIBK 74.42
    2-propoxyethanol 207.9
    tert-butanol 362.29
    MTBE 161.17
    2-butoxyethanol 136.47
    propionic acid 108.49
    o-xylene 36.87
    formic acid 197.48
    diethyl ether 210.91
    m-xylene 33.73
    p-xylene 25.04
    chlorobenzene 24.67
    dimethyl carbonate 73.25
    n-octane 18.53
    formamide 307.34
    cyclopentanone 128.28
    2-pentanone 118.14
    anisole 55.2
    cyclopentyl methyl ether 123.62
    gamma-butyrolactone 131.86
    1-methoxy-2-propanol 347.24
    pyridine 82.72
    3-pentanone 84.2
    furfural 106.09
    n-dodecane 13.84
    diethylene glycol 208.74
    diisopropyl ether 66.58
    tert-amyl alcohol 224.13
    acetylacetone 86.04
    n-hexadecane 14.0
    acetophenone 45.71
    methyl propionate 95.58
    isopentyl acetate 37.69
    trichloroethylene 73.74
    n-nonanol 75.98
    cyclohexanol 101.99
    benzyl alcohol 59.66
    2-ethylhexanol 56.2
    isooctanol 63.33
    dipropyl ether 91.04
    1,2-dichlorobenzene 24.82
    ethyl lactate 55.41
    propylene carbonate 57.93
    n-methylformamide 301.04
    2-pentanol 170.52
    n-pentane 72.09
    1-propoxy-2-propanol 142.99
    1-methoxy-2-propyl acetate 60.79
    2-(2-methoxypropoxy) propanol 87.33
    mesitylene 28.53
    ε-caprolactone 68.56
    p-cymene 26.65
    epichlorohydrin 137.47
    1,1,1-trichloroethane 47.34
    2-aminoethanol 296.18
    morpholine-4-carbaldehyde 199.35
    sulfolane 184.05
    2,2,4-trimethylpentane 20.69
    2-methyltetrahydrofuran 155.77
    n-hexyl acetate 61.89
    isooctane 17.98
    2-(2-butoxyethoxy)ethanol 120.94
    sec-butyl acetate 32.81
    tert-butyl acetate 69.54
    decalin 12.23
    glycerin 238.72
    diglyme 182.08
    acrylic acid 99.24
    isopropyl myristate 35.44
    n-butyric acid 103.07
    acetyl acetate 36.47
    di(2-ethylhexyl) phthalate 29.92
    ethyl propionate 54.85
    nitromethane 187.98
    1,2-diethoxyethane 83.07
    benzonitrile 37.81
    trioctyl phosphate 31.39
    1-bromopropane 95.44
    gamma-valerolactone 142.06
    n-decanol 60.9
    triethyl phosphate 29.79
    4-methyl-2-pentanol 91.45
    propionitrile 111.24
    vinylene carbonate 49.85
    1,1,2-trichlorotrifluoroethane 112.32
    DMS 39.35
    cumene 22.81
    2-octanol 71.38
    2-hexanone 62.89
    octyl acetate 44.63
    limonene 35.08
    1,2-dimethoxyethane 279.31
    ethyl orthosilicate 32.19
    tributyl phosphate 28.33
    diacetone alcohol 114.17
    N,N-dimethylaniline 63.3
    acrylonitrile 122.97
    aniline 63.36
    1,3-propanediol 265.91
    bromobenzene 19.86
    dibromomethane 96.27
    1,1,2,2-tetrachloroethane 87.5
    2-methyl-cyclohexyl acetate 33.0
    tetrabutyl urea 49.55
    diisobutyl methanol 47.55
    2-phenylethanol 56.45
    styrene 25.61
    dioctyl adipate 38.02
    dimethyl sulfate 110.4
    ethyl butyrate 45.36
    methyl lactate 99.9
    butyl lactate 52.67
    diethyl carbonate 29.48
    propanediol butyl ether 119.23
    triethyl orthoformate 38.1
    p-tert-butyltoluene 29.26
    methyl 4-tert-butylbenzoate 69.95
    morpholine 204.72
    tert-butylamine 249.6
    n-dodecanol 48.6
    dimethoxymethane 369.83
    ethylene carbonate 45.31
    cyrene 72.25
    2-ethoxyethyl acetate 57.28
    2-ethylhexyl acetate 29.63
    1,2,4-trichlorobenzene 27.13
    4-methylpyridine 75.56
    dibutyl ether 56.53
    2,6-dimethyl-4-heptanol 47.55
    DEF 146.36
    dimethyl isosorbide 101.35
    tetrachloroethylene 70.27
    eugenol 79.3
    triacetin 46.73
    span 80 78.39
    1,4-butanediol 128.2
    1,1-dichloroethane 78.7
    2-methyl-1-pentanol 91.45
    methyl formate 186.39
    2-methyl-1-butanol 140.36
    n-decane 20.74
    butyronitrile 102.34
    3,7-dimethyl-1-octanol 60.18
    1-chlorooctane 41.24
    1-chlorotetradecane 21.28
    n-nonane 21.44
    undecane 16.49
    tert-butylcyclohexane 13.01
    cyclooctane 16.29
    cyclopentanol 146.55
    tetrahydropyran 129.53
    tert-amyl methyl ether 129.61
    2,5,8-trioxanonane 131.33
    1-hexene 68.99
    2-isopropoxyethanol 139.84
    2,2,2-trifluoroethanol 77.1
    methyl butyrate 63.75

    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