Calcium Bromide

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  • Identifiers

    CAS number
    7789-41-5

    Molecular formula
    Br2Ca

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

    Safety labels

    Corrosive
    Corrosive

  • Odor profile

  • Properties

    pKa est.
    -44.08 (strong acid)

    Molecular weight
    199.89 g/mol

    Melting point expt.

    • 742 °C
    • MP: 730 °C (anhydrous)
    • 730 °C

    Boiling point

    • 1815 °C
    • BP: 806-812 °C, very deliquescent

    Flash point

    • -94.11 ˚C est.

    Solubility expt.

    • In water, 156 g/100 g water at 25 °C
    • Water solubilty[Table#8606]
    • In water, 1420 g/L at 30 °C
    • Very soluble in water
    • For more Solubility (Complete) data for Calcium bromide (6 total), please visit the HSDB record page.
    • Solubility in water, g/100ml at 30 °C: 142

  • Synonyms

    • CALCIUM BROMIDE
    • 7789-41-5
    • Calcium dibromide
    • Kalziumbromid
    • CaBr2
    • 87CNY2EEBH
    • DTXSID0044577
    • CHEBI:31338
    • DTXCID8024577
    • dibromocalcium
    • RefChem:5632
    • 232-164-6
    • Calcium bromatum
    • Calcium bromide (CaBr2)
    • Calciumbromid
    • Calciumbromide
    • Calcium bromide anhydrous
    • MFCD00010902
    • Br2Ca
    • CHEMBL2105852
    • AKOS015832992
    • SCHEMBL26682
    • CALCIUM BROMIDE [MI]
    • CALCIUM BROMIDE [WHO-DD]
    • Tox21_301859
    • NCGC00255890-01
    • Calcium bromide, anhydrous (99.5%-Ca)
    • FC138629
    • SY061325
    • CAS-7789-41-5
    • NS00093537
    • Q409739
    • 7789-41-5

  • Applications

    Calcium Bromide (CAS 7789-41-5) is used primarily in oilfield services as a high-density brine for drilling and completion fluids, helping to control mud density and stabilize the wellbore. It serves as a bromide source and reagent in organic synthesis, enabling bromination steps and other transformations. In industrial processing it is used as a heat-transfer and thermal storage brine due to its favorable solubility and low freezing point, supporting closed-loop cooling and energy storage in solar or geothermal systems. It may be used in water treatment formulations as a bromide source that participates in disinfection chemistries under appropriate conditions and regulatory oversight. It is also supplied as a general laboratory reagent for research and development and as a precursor for subsequent brominated compounds. These uses are subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 139.71
    methanol 138.38
    isopropanol 90.05
    water 1.72
    ethyl acetate 78.97
    n-propanol 96.04
    acetone 143.38
    n-butanol 88.43
    acetonitrile 90.95
    DMF 217.45
    toluene 44.37
    isobutanol 64.94
    1,4-dioxane 162.51
    methyl acetate 84.69
    THF 204.86
    2-butanone 103.94
    n-pentanol 68.46
    sec-butanol 78.57
    n-hexane 20.57
    ethylene glycol 55.29
    NMP 205.77
    cyclohexane 22.23
    DMSO 213.42
    n-butyl acetate 77.63
    n-octanol 57.14
    chloroform 124.76
    n-propyl acetate 59.02
    acetic acid 119.89
    dichloromethane 103.8
    cyclohexanone 140.4
    propylene glycol 50.19
    isopropyl acetate 47.9
    DMAc 122.89
    2-ethoxyethanol 82.84
    isopentanol 66.5
    n-heptane 20.44
    ethyl formate 52.43
    1,2-dichloroethane 81.7
    n-hexanol 92.6
    2-methoxyethanol 139.91
    isobutyl acetate 39.79
    tetrachloromethane 32.41
    n-pentyl acetate 54.18
    transcutol 264.11
    n-heptanol 54.29
    ethylbenzene 26.0
    MIBK 58.4
    2-propoxyethanol 121.69
    tert-butanol 95.52
    MTBE 74.36
    2-butoxyethanol 79.27
    propionic acid 92.55
    o-xylene 32.15
    formic acid 45.53
    diethyl ether 95.54
    m-xylene 33.6
    p-xylene 32.9
    chlorobenzene 57.95
    dimethyl carbonate 40.36
    n-octane 9.14
    formamide 62.86
    cyclopentanone 184.99
    2-pentanone 94.66
    anisole 58.67
    cyclopentyl methyl ether 105.08
    gamma-butyrolactone 170.08
    1-methoxy-2-propanol 110.45
    pyridine 105.82
    3-pentanone 69.17
    furfural 132.96
    n-dodecane 8.36
    diethylene glycol 103.83
    diisopropyl ether 34.16
    tert-amyl alcohol 78.37
    acetylacetone 89.73
    n-hexadecane 9.18
    acetophenone 55.95
    methyl propionate 69.11
    isopentyl acetate 64.11
    trichloroethylene 131.19
    n-nonanol 47.06
    cyclohexanol 78.0
    benzyl alcohol 48.15
    2-ethylhexanol 55.93
    isooctanol 41.71
    dipropyl ether 60.53
    1,2-dichlorobenzene 53.54
    ethyl lactate 33.46
    propylene carbonate 88.19
    n-methylformamide 94.24
    2-pentanol 66.95
    n-pentane 22.3
    1-propoxy-2-propanol 91.08
    1-methoxy-2-propyl acetate 69.83
    2-(2-methoxypropoxy) propanol 70.47
    mesitylene 24.77
    ε-caprolactone 111.99
    p-cymene 24.64
    epichlorohydrin 131.34
    1,1,1-trichloroethane 79.16
    2-aminoethanol 74.47
    morpholine-4-carbaldehyde 167.58
    sulfolane 187.83
    2,2,4-trimethylpentane 10.9
    2-methyltetrahydrofuran 145.96
    n-hexyl acetate 75.66
    isooctane 9.6
    2-(2-butoxyethoxy)ethanol 101.65
    sec-butyl acetate 38.77
    tert-butyl acetate 59.2
    decalin 12.87
    glycerin 69.56
    diglyme 157.54
    acrylic acid 87.22
    isopropyl myristate 33.83
    n-butyric acid 90.35
    acetyl acetate 51.47
    di(2-ethylhexyl) phthalate 31.01
    ethyl propionate 47.2
    nitromethane 149.09
    1,2-diethoxyethane 90.07
    benzonitrile 62.72
    trioctyl phosphate 27.19
    1-bromopropane 61.48
    gamma-valerolactone 171.26
    n-decanol 36.9
    triethyl phosphate 28.58
    4-methyl-2-pentanol 40.34
    propionitrile 67.58
    vinylene carbonate 77.75
    1,1,2-trichlorotrifluoroethane 97.1
    DMS 54.37
    cumene 20.79
    2-octanol 41.13
    2-hexanone 72.01
    octyl acetate 42.15
    limonene 39.7
    1,2-dimethoxyethane 111.26
    ethyl orthosilicate 28.83
    tributyl phosphate 31.03
    diacetone alcohol 81.81
    N,N-dimethylaniline 43.91
    acrylonitrile 81.29
    aniline 55.28
    1,3-propanediol 91.0
    bromobenzene 55.56
    dibromomethane 83.05
    1,1,2,2-tetrachloroethane 104.31
    2-methyl-cyclohexyl acetate 43.33
    tetrabutyl urea 43.48
    diisobutyl methanol 35.1
    2-phenylethanol 58.17
    styrene 33.5
    dioctyl adipate 41.78
    dimethyl sulfate 61.38
    ethyl butyrate 49.77
    methyl lactate 47.02
    butyl lactate 45.67
    diethyl carbonate 33.47
    propanediol butyl ether 79.29
    triethyl orthoformate 37.5
    p-tert-butyltoluene 25.39
    methyl 4-tert-butylbenzoate 56.79
    morpholine 167.78
    tert-butylamine 67.49
    n-dodecanol 30.03
    dimethoxymethane 104.9
    ethylene carbonate 62.52
    cyrene 64.28
    2-ethoxyethyl acetate 70.61
    2-ethylhexyl acetate 55.64
    1,2,4-trichlorobenzene 63.09
    4-methylpyridine 95.13
    dibutyl ether 53.84
    2,6-dimethyl-4-heptanol 35.1
    DEF 99.45
    dimethyl isosorbide 102.52
    tetrachloroethylene 76.4
    eugenol 61.64
    triacetin 64.5
    span 80 69.37
    1,4-butanediol 43.2
    1,1-dichloroethane 79.09
    2-methyl-1-pentanol 58.1
    methyl formate 68.46
    2-methyl-1-butanol 64.64
    n-decane 12.49
    butyronitrile 67.18
    3,7-dimethyl-1-octanol 48.46
    1-chlorooctane 37.93
    1-chlorotetradecane 17.58
    n-nonane 12.78
    undecane 9.87
    tert-butylcyclohexane 13.76
    cyclooctane 9.78
    cyclopentanol 94.02
    tetrahydropyran 139.9
    tert-amyl methyl ether 61.75
    2,5,8-trioxanonane 116.33
    1-hexene 49.64
    2-isopropoxyethanol 63.25
    2,2,2-trifluoroethanol 45.07
    methyl butyrate 63.12

    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