copper(I) bromide

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  • Identifiers

    CAS number
    7787-70-4

    Molecular formula
    BrCu

    SMILES
    [Cu]Br

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fishy 56.83%
    Odorless 46.0%
    Cheesy 44.28%
    Ripe 40.28%
    Alcoholic 26.25%
    Fermented 26.23%
    Oily 25.64%
    Sulfurous 24.37%
    Meaty 23.48%
    Pungent 21.63%

     

    Flavor
    Fishy 34.53%
    Egg 31.92%
    Ammoniacal 27.61%
    Garlic 25.22%
    Rotten 25.07%
    Sulfur 24.35%
    Odorless 24.05%
    Decomposing cabbage 22.35%
    Ammonia 20.69%
    Sulfurous 20.67%

     

  • Properties

    pKa est.
    -47.59 (strong acid)

    Molecular weight
    143.45 g/mol

    Melting point expt.

    • 504 °C

    Boiling point

    • 1345 °C

    Flash point

    • 62.6 ˚C est.

    Solubility expt.

    • Slightly sol in cold water; sol in hydrochloric acid, hydrobromic acid, ammonium hydroxide with the formation of complexes; practically insoluble in acetone, concentrated sulfuric acid
    • Soluble in hydrochloric acid and ammonium hydroxide; insoluble in acetone and sulfuric acid
    • Slightly soluble in water

  • Synonyms

    • Copper(I) bromide
    • 7787-70-4
    • CUPROUS BROMIDE
    • Bromocopper
    • Copper(1+) bromide
    • Copper bromide (CuBr)
    • Copper monobromide
    • UNII-R8V209A5G0
    • HSDB 270
    • EINECS 232-131-6
    • DTXSID6052530
    • RefChem:127896
    • DTXCID3031103
    • 232-131-6
    • COPPER(I) BROMIDE [HSDB]
    • CUPROUS BROMIDE [MI]
    • CuBr
    • copper(1)bromide
    • Copper I Bromide
    • copper (I)bromide
    • Copper(l) bromide
    • copper-(I)bromide
    • copper(1) bromide
    • copper-(I) bromide
    • copper (1) bromide
    • copper-(1) bromide
    • copper- (I) bromide
    • SCHEMBL450
    • Copper(I) bromide, 98%
    • Copper(I) bromide, 99.999% trace metals basis
    • Copper(I) bromide, >=97.0%
    • AKOS015833217
    • Copper(I) Bromide, Trace metals grade
    • FC34023
    • Copper(I) bromide, 99%, for synthesis
    • BP-21320
    • CS-0031756
    • NS00112661
    • Q417906
    • Copper(I) bromide, purum p.a., >=98.0% (RT)
    • Copper(I) bromide, beads, -10 mesh, 99.99% trace metals basis
    • 7787-70-4

  • Applications

    copper(I) bromide (CAS 7787-70-4) is primarily used as a copper(I) source and catalyst in synthesis and materials applications. In organic synthesis it serves as a precursor for organocuprate reagents and participates in copper-catalyzed cross-coupling reactions, including Ullmann-type transformations. It is also employed as the copper(I) component in azide–alkyne click chemistry (CuAAC) to promote rapid, high-yielding cycloadditions. In polymer chemistry, CuBr participates in ATRP catalyst systems (often with suitable ligands) to enable controlled radical polymerizations for well-defined polymers used in coatings and adhesives. Additionally, it functions as a starting material in the preparation of copper halide–based nanomaterials and related inorganic/organic hybrids used in research and development, all subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 743.36
    methanol 876.13
    isopropanol 611.88
    water 28.08
    ethyl acetate 319.16
    n-propanol 516.23
    acetone 644.29
    n-butanol 507.62
    acetonitrile 328.79
    DMF 1164.35
    toluene 244.45
    isobutanol 362.9
    1,4-dioxane 874.34
    methyl acetate 332.19
    THF 1191.5
    2-butanone 395.55
    n-pentanol 368.87
    sec-butanol 424.88
    n-hexane 108.58
    ethylene glycol 380.01
    NMP 812.48
    cyclohexane 168.93
    DMSO 1218.62
    n-butyl acetate 271.51
    n-octanol 276.57
    chloroform 614.09
    n-propyl acetate 250.17
    acetic acid 617.51
    dichloromethane 546.99
    cyclohexanone 505.78
    propylene glycol 279.18
    isopropyl acetate 227.41
    DMAc 681.1
    2-ethoxyethanol 586.16
    isopentanol 372.33
    n-heptane 140.2
    ethyl formate 266.42
    1,2-dichloroethane 416.48
    n-hexanol 387.69
    2-methoxyethanol 969.01
    isobutyl acetate 169.0
    tetrachloromethane 211.82
    n-pentyl acetate 244.75
    transcutol 1087.97
    n-heptanol 277.68
    ethylbenzene 129.96
    MIBK 264.62
    2-propoxyethanol 624.73
    tert-butanol 615.89
    MTBE 389.32
    2-butoxyethanol 441.26
    propionic acid 336.64
    o-xylene 192.71
    formic acid 332.36
    diethyl ether 475.32
    m-xylene 192.17
    p-xylene 152.78
    chlorobenzene 251.2
    dimethyl carbonate 212.0
    n-octane 69.32
    formamide 427.96
    cyclopentanone 645.61
    2-pentanone 409.17
    anisole 283.68
    cyclopentyl methyl ether 530.73
    gamma-butyrolactone 575.02
    1-methoxy-2-propanol 668.58
    pyridine 532.68
    3-pentanone 295.53
    furfural 589.81
    n-dodecane 59.04
    diethylene glycol 654.34
    diisopropyl ether 194.39
    tert-amyl alcohol 427.66
    acetylacetone 400.78
    n-hexadecane 63.16
    acetophenone 232.09
    methyl propionate 293.95
    isopentyl acetate 222.59
    trichloroethylene 581.75
    n-nonanol 239.66
    cyclohexanol 455.79
    benzyl alcohol 280.0
    2-ethylhexanol 233.65
    isooctanol 221.21
    dipropyl ether 320.56
    1,2-dichlorobenzene 224.19
    ethyl lactate 167.26
    propylene carbonate 297.36
    n-methylformamide 505.48
    2-pentanol 386.05
    n-pentane 164.48
    1-propoxy-2-propanol 476.07
    1-methoxy-2-propyl acetate 302.27
    2-(2-methoxypropoxy) propanol 336.95
    mesitylene 146.39
    ε-caprolactone 405.35
    p-cymene 130.98
    epichlorohydrin 621.57
    1,1,1-trichloroethane 369.21
    2-aminoethanol 445.7
    morpholine-4-carbaldehyde 895.36
    sulfolane 712.19
    2,2,4-trimethylpentane 77.69
    2-methyltetrahydrofuran 671.4
    n-hexyl acetate 273.66
    isooctane 70.24
    2-(2-butoxyethoxy)ethanol 484.67
    sec-butyl acetate 174.69
    tert-butyl acetate 268.03
    decalin 75.47
    glycerin 444.76
    diglyme 757.83
    acrylic acid 329.6
    isopropyl myristate 154.12
    n-butyric acid 398.48
    acetyl acetate 223.94
    di(2-ethylhexyl) phthalate 143.77
    ethyl propionate 195.85
    nitromethane 627.68
    1,2-diethoxyethane 430.68
    benzonitrile 250.51
    trioctyl phosphate 125.93
    1-bromopropane 302.27
    gamma-valerolactone 725.31
    n-decanol 193.92
    triethyl phosphate 130.38
    4-methyl-2-pentanol 227.35
    propionitrile 273.26
    vinylene carbonate 280.01
    1,1,2-trichlorotrifluoroethane 535.53
    DMS 197.6
    cumene 110.79
    2-octanol 221.8
    2-hexanone 280.84
    octyl acetate 181.27
    limonene 194.23
    1,2-dimethoxyethane 751.22
    ethyl orthosilicate 145.15
    tributyl phosphate 130.71
    diacetone alcohol 374.23
    N,N-dimethylaniline 251.71
    acrylonitrile 309.09
    aniline 325.84
    1,3-propanediol 548.93
    bromobenzene 245.68
    dibromomethane 427.0
    1,1,2,2-tetrachloroethane 495.07
    2-methyl-cyclohexyl acetate 181.37
    tetrabutyl urea 195.17
    diisobutyl methanol 179.25
    2-phenylethanol 276.68
    styrene 167.91
    dioctyl adipate 189.44
    dimethyl sulfate 303.64
    ethyl butyrate 207.55
    methyl lactate 252.93
    butyl lactate 213.72
    diethyl carbonate 143.06
    propanediol butyl ether 401.88
    triethyl orthoformate 189.56
    p-tert-butyltoluene 140.54
    methyl 4-tert-butylbenzoate 262.86
    morpholine 919.11
    tert-butylamine 418.06
    n-dodecanol 167.42
    dimethoxymethane 723.34
    ethylene carbonate 241.15
    cyrene 307.35
    2-ethoxyethyl acetate 290.22
    2-ethylhexyl acetate 194.19
    1,2,4-trichlorobenzene 265.22
    4-methylpyridine 449.87
    dibutyl ether 247.13
    2,6-dimethyl-4-heptanol 179.25
    DEF 495.94
    dimethyl isosorbide 473.19
    tetrachloroethylene 425.62
    eugenol 302.72
    triacetin 241.94
    span 80 352.07
    1,4-butanediol 279.52
    1,1-dichloroethane 379.95
    2-methyl-1-pentanol 283.09
    methyl formate 381.33
    2-methyl-1-butanol 344.1
    n-decane 80.78
    butyronitrile 305.11
    3,7-dimethyl-1-octanol 218.49
    1-chlorooctane 170.03
    1-chlorotetradecane 99.87
    n-nonane 82.25
    undecane 67.1
    tert-butylcyclohexane 78.09
    cyclooctane 81.52
    cyclopentanol 507.43
    tetrahydropyran 673.89
    tert-amyl methyl ether 336.35
    2,5,8-trioxanonane 565.48
    1-hexene 203.48
    2-isopropoxyethanol 409.8
    2,2,2-trifluoroethanol 243.66
    methyl butyrate 248.58

    Scent© AI

1 4

IFRA standard 51

Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
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Rinse-off products applied to the hair with some hand contact
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Category 2
Products applied to the axillae
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Leave-on products applied to the hair with some hand contact
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Category 3
Products applied to the face/body using fingertips
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Products with significant anogenital exposure
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Category 4
Products related to fine fragrance
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Products with body and hand exposure, primarily rinse off
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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
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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
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Category 5D
Baby Creams, baby Oils and baby talc
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Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
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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
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