Zinc bromide

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  • Identifiers

    CAS number
    7699-45-8

    Molecular formula
    Br2Zn

    SMILES
    [Zn+2].[Br-].[Br-]

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

  • Properties

    pKa est.
    -37.47 (strong acid)

    Molecular weight
    225.2 g/mol

    Melting point expt.

    • 394 °C

    Boiling point

    • 697 °C

    Flash point

    • -79.72 ˚C est.

    Solubility expt.

    • 1 G SOL IN 0.25 ML H2O; 1 G SOL IN 0.5 ML 90% ALCOHOL
    • VERY SOL IN ETHANOL; SOL IN ETHER
    • 457.399 lb/100 lb water at 70 °F
    • 471 g/100g water @ 25 °C

  • Synonyms

    • ZINC BROMIDE
    • 7699-45-8
    • Zinc dibromide
    • ZINCUM BROMATUM
    • OO7ZBU9703
    • DTXSID8052512
    • RefChem:58724
    • DTXCID2031085
    • 231-718-4
    • dibromozinc
    • Zinc bromide (ZnBr2)
    • zinc;dibromide
    • zinc (II) bromide
    • Br2Zn
    • ZINC BROMIDE [MI]
    • ZINC BROMIDE [HSDB]
    • SCHEMBL19714
    • 7899-45-8
    • ZINC BROMIDE [WHO-DD]
    • ZINCUM BROMATUM [HPUS]
    • AKOS015833001
    • NS00093595
    • Z0013
    • 7699-45-8

  • Applications

    Zinc bromide (CAS 7699-45-8) is used primarily as a Lewis acid catalyst in organic synthesis (e.g., promoting acylation and halogenation-type reactions). It also serves as a bromide source for certain organobromine syntheses and as a component in electrolytes for zinc-bromine redox-flow batteries used in energy storage. As a dense brine salt, it is employed in oilfield drilling and completion fluids to provide high density and stabilize wellbore operations. Additionally, ZnBr2 is a precursor for various inorganic and polymer-related chemical processes and formulations, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 217.08
    methanol 211.59
    isopropanol 141.98
    water 2.35
    ethyl acetate 130.32
    n-propanol 148.79
    acetone 237.26
    n-butanol 138.19
    acetonitrile 152.04
    DMF 362.76
    toluene 79.32
    isobutanol 102.05
    1,4-dioxane 274.67
    methyl acetate 139.8
    THF 344.23
    2-butanone 172.16
    n-pentanol 110.99
    sec-butanol 126.91
    n-hexane 34.79
    ethylene glycol 80.3
    NMP 346.98
    cyclohexane 40.33
    DMSO 358.83
    n-butyl acetate 130.3
    n-octanol 93.47
    chloroform 211.21
    n-propyl acetate 100.46
    acetic acid 188.51
    dichloromethane 174.98
    cyclohexanone 236.75
    propylene glycol 73.23
    isopropyl acetate 81.38
    DMAc 209.87
    2-ethoxyethanol 136.07
    isopentanol 107.04
    n-heptane 35.0
    ethyl formate 86.5
    1,2-dichloroethane 138.33
    n-hexanol 148.14
    2-methoxyethanol 222.16
    isobutyl acetate 67.37
    tetrachloromethane 55.3
    n-pentyl acetate 91.35
    transcutol 435.05
    n-heptanol 88.1
    ethylbenzene 46.73
    MIBK 98.46
    2-propoxyethanol 196.73
    tert-butanol 155.65
    MTBE 127.28
    2-butoxyethanol 129.3
    propionic acid 142.51
    o-xylene 58.04
    formic acid 67.78
    diethyl ether 160.92
    m-xylene 60.09
    p-xylene 59.81
    chlorobenzene 98.85
    dimethyl carbonate 66.52
    n-octane 16.1
    formamide 96.18
    cyclopentanone 308.96
    2-pentanone 157.0
    anisole 103.81
    cyclopentyl methyl ether 177.49
    gamma-butyrolactone 279.04
    1-methoxy-2-propanol 175.62
    pyridine 177.68
    3-pentanone 116.05
    furfural 221.62
    n-dodecane 14.58
    diethylene glycol 166.5
    diisopropyl ether 59.18
    tert-amyl alcohol 129.61
    acetylacetone 155.08
    n-hexadecane 15.99
    acetophenone 98.38
    methyl propionate 113.24
    isopentyl acetate 109.17
    trichloroethylene 224.62
    n-nonanol 77.39
    cyclohexanol 128.36
    benzyl alcohol 82.89
    2-ethylhexanol 90.56
    isooctanol 68.32
    dipropyl ether 99.37
    1,2-dichlorobenzene 91.53
    ethyl lactate 55.76
    propylene carbonate 144.67
    n-methylformamide 146.49
    2-pentanol 107.92
    n-pentane 37.9
    1-propoxy-2-propanol 147.97
    1-methoxy-2-propyl acetate 118.2
    2-(2-methoxypropoxy) propanol 118.71
    mesitylene 44.39
    ε-caprolactone 188.01
    p-cymene 42.81
    epichlorohydrin 218.96
    1,1,1-trichloroethane 138.02
    2-aminoethanol 109.74
    morpholine-4-carbaldehyde 280.25
    sulfolane 312.79
    2,2,4-trimethylpentane 19.06
    2-methyltetrahydrofuran 248.63
    n-hexyl acetate 125.85
    isooctane 16.76
    2-(2-butoxyethoxy)ethanol 167.92
    sec-butyl acetate 67.4
    tert-butyl acetate 101.34
    decalin 23.32
    glycerin 102.88
    diglyme 267.74
    acrylic acid 134.21
    isopropyl myristate 58.18
    n-butyric acid 142.9
    acetyl acetate 87.12
    di(2-ethylhexyl) phthalate 52.04
    ethyl propionate 80.3
    nitromethane 241.11
    1,2-diethoxyethane 154.23
    benzonitrile 106.37
    trioctyl phosphate 44.96
    1-bromopropane 102.77
    gamma-valerolactone 285.82
    n-decanol 60.93
    triethyl phosphate 48.27
    4-methyl-2-pentanol 65.58
    propionitrile 108.64
    vinylene carbonate 126.88
    1,1,2-trichlorotrifluoroethane 158.86
    DMS 92.12
    cumene 36.85
    2-octanol 67.26
    2-hexanone 121.26
    octyl acetate 71.11
    limonene 69.01
    1,2-dimethoxyethane 187.39
    ethyl orthosilicate 49.07
    tributyl phosphate 51.59
    diacetone alcohol 135.12
    N,N-dimethylaniline 78.14
    acrylonitrile 130.04
    aniline 91.43
    1,3-propanediol 139.55
    bromobenzene 97.33
    dibromomethane 139.9
    1,1,2,2-tetrachloroethane 176.54
    2-methyl-cyclohexyl acetate 74.62
    tetrabutyl urea 73.55
    diisobutyl methanol 58.53
    2-phenylethanol 97.99
    styrene 59.46
    dioctyl adipate 71.69
    dimethyl sulfate 102.93
    ethyl butyrate 83.18
    methyl lactate 74.86
    butyl lactate 75.35
    diethyl carbonate 56.69
    propanediol butyl ether 127.25
    triethyl orthoformate 63.82
    p-tert-butyltoluene 43.95
    methyl 4-tert-butylbenzoate 96.25
    morpholine 279.96
    tert-butylamine 110.72
    n-dodecanol 49.71
    dimethoxymethane 172.29
    ethylene carbonate 101.82
    cyrene 110.64
    2-ethoxyethyl acetate 118.53
    2-ethylhexyl acetate 94.01
    1,2,4-trichlorobenzene 107.06
    4-methylpyridine 162.45
    dibutyl ether 91.03
    2,6-dimethyl-4-heptanol 58.53
    DEF 165.12
    dimethyl isosorbide 175.7
    tetrachloroethylene 128.39
    eugenol 103.09
    triacetin 108.39
    span 80 115.09
    1,4-butanediol 68.85
    1,1-dichloroethane 136.38
    2-methyl-1-pentanol 95.47
    methyl formate 108.95
    2-methyl-1-butanol 103.29
    n-decane 21.56
    butyronitrile 110.0
    3,7-dimethyl-1-octanol 79.91
    1-chlorooctane 64.43
    1-chlorotetradecane 30.1
    n-nonane 22.12
    undecane 17.11
    tert-butylcyclohexane 24.63
    cyclooctane 17.64
    cyclopentanol 151.47
    tetrahydropyran 238.27
    tert-amyl methyl ether 105.74
    2,5,8-trioxanonane 196.41
    1-hexene 82.41
    2-isopropoxyethanol 105.06
    2,2,2-trifluoroethanol 69.63
    methyl butyrate 104.71

    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