Cupric Chloride

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  • Identifiers

    CAS number
    7447-39-4

    Molecular formula
    Cl2Cu

    SMILES
    Cl[Cu]Cl

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fishy 35.22%
    Odorless 32.65%
    Sulfurous 31.43%
    Cheesy 29.76%
    Meaty 27.94%
    Sweet 26.92%
    Vegetable 26.66%
    Ripe 24.66%
    Ethereal 23.92%
    Oily 23.8%

     

    Flavor
    Sulfurous 33.86%
    Odorless 32.09%
    Fishy 31.05%
    Sulfury 29.63%
    Meaty 26.37%
    Onion 24.57%
    Sulfur 21.61%
    Roasted 21.39%
    Rotten 19.99%
    Pungent 19.88%

     

  • Properties

    pKa est.
    -24.01 (strong acid)

    Molecular weight
    134.45 g/mol

    Melting point expt.

    • 630 °C (extrapolated)

    Boiling point

    • 993 °C DECOMP TO CUPROUS CHLORIDE

    Flash point

    • 6.3 ˚C est.

    Solubility expt.

    • Green to blue powder or orthorhombic, bipyramidal crystals; deliquescent in moist air, efflorescent in dry air; water loss occurs from 70-200 °C; mp 100 °C; ... freely sol in water, methanol, ethanol; moderately sol in acetone, ethyl acetate; slightly sol in ether. The aq soln is acid to litmus; pH of 0.2 molar soln 3.6; /Dihydrate/
    • Soluble in acetone.
    • SOL IN HOT SULFURIC ACID.
    • 70.6 g/100 cc water @ 0 °C, 107.9 g/100 cc water @ 100 °C
    • 53 g/100 cc alcohol @ 15 °C
    • For more Solubility (Complete) data for COPPER(II) CHLORIDE (6 total), please visit the HSDB record page.

  • Synonyms

    • CUPRIC CHLORIDE
    • Copper(II) chloride
    • Cupric chloride anhydrous
    • Copper bichloride
    • Cupric dichloride
    • Copper(2+) chloride
    • dichlorocopper
    • CuCl2
    • Copper(2+)chloride
    • Copper chloride (CuCl2)
    • Coclor
    • Copper(II) chloride (1:2)
    • CHEBI:49553
    • Cupric chloride in plastic container
    • NSC-165706
    • P484053J2Y
    • RefChem:5712
    • Copper (as cupric chloride)
    • 231-210-2
    • 7447-39-4
    • Copper chloride (cucl2) dihydrate
    • Cuprum Muriaticum
    • DTXCID5020449
    • DTXSID7040449
    • Kirticopper
    • S2QG84156O
    • Copper chloride
    • Copper dichloride
    • Copper(II)chloride
    • Copper(II) chloride, anhydrous
    • Copper (II) chloride anhydrous
    • NSC165706
    • Copper chloride (VAN)
    • CCRIS 6883
    • HSDB 259
    • EINECS 231-210-2
    • copper (II)chloride
    • copper(II)-chloride
    • copper (II) cloride
    • NSC 165706
    • copper (II)-chloride
    • AI3-01658
    • Epitope ID:156811
    • SCHEMBL29279
    • Copper(II) chloride, 97%
    • Copper (II) chloride, 95%
    • Copper(II) chloride, ultra dry
    • UNII-P484053J2Y
    • Copper(II) chloride, powder, 99%
    • Copper(II) chloride, p.a., 97%
    • Copper(II) chloride, LR, >=98%
    • AKOS015902778
    • DB09131
    • FC34323
    • BP-13443
    • NCI60_001274
    • Copper (II) Chloride, Trace metals grade
    • EC 231-210-2
    • Copper(II) chloride, SAJ first grade, >=98.0%
    • Q421781
    • Copper(II) chloride, 99.999% trace metals basis
    • Copper(II) chloride, anhydrous, powder, >=99.995% trace metals basis
    • Copper (II) chloride, ultra dry, powder, ampoule, 99.995% trace metals grade
    • 7447-39-4

  • Applications

    Cupric Chloride (CAS 7447-39-4) is widely used as a copper etchant in electronics and printed circuit board fabrication, where the CuCl2-HCl solution dissolves copper to create traces. It also serves as a copper ion source in electroplating and metal finishing baths, supporting copper deposition. In textiles, this salt is used as a mordant to fix certain dyes to fibers. In organic synthesis and polymers, CuCl2 acts as a catalyst or catalyst precursor for a range of reactions and controlled polymerization processes. It is also employed in the production of copper-containing coatings and conductive inks, and in cleaning or pretreatment formulations of metal surfaces as a source of copper ions. Applications vary with local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1169.07
    methanol 1460.32
    isopropanol 1030.95
    water 80.21
    ethyl acetate 546.77
    n-propanol 814.07
    acetone 1338.6
    n-butanol 803.13
    acetonitrile 604.09
    DMF 3359.42
    toluene 418.55
    isobutanol 638.15
    1,4-dioxane 1247.7
    methyl acetate 554.13
    THF 1961.45
    2-butanone 715.36
    n-pentanol 561.08
    sec-butanol 743.18
    n-hexane 221.85
    ethylene glycol 656.79
    NMP 1710.53
    cyclohexane 284.99
    DMSO 2660.62
    n-butyl acetate 375.34
    n-octanol 404.89
    chloroform 1073.98
    n-propyl acetate 377.63
    acetic acid 1003.39
    dichloromethane 1043.1
    cyclohexanone 849.43
    propylene glycol 552.5
    isopropyl acetate 416.68
    DMAc 1748.76
    2-ethoxyethanol 912.42
    isopentanol 605.2
    n-heptane 210.12
    ethyl formate 494.39
    1,2-dichloroethane 807.76
    n-hexanol 510.87
    2-methoxyethanol 1794.43
    isobutyl acetate 260.22
    tetrachloromethane 420.86
    n-pentyl acetate 379.47
    transcutol 1221.08
    n-heptanol 408.88
    ethylbenzene 237.36
    MIBK 463.96
    2-propoxyethanol 915.18
    tert-butanol 1202.11
    MTBE 782.8
    2-butoxyethanol 643.02
    propionic acid 501.76
    o-xylene 354.97
    formic acid 622.28
    diethyl ether 852.03
    m-xylene 362.51
    p-xylene 299.68
    chlorobenzene 406.04
    dimethyl carbonate 484.71
    n-octane 112.29
    formamide 871.64
    cyclopentanone 1146.39
    2-pentanone 745.14
    anisole 494.5
    cyclopentyl methyl ether 914.42
    gamma-butyrolactone 987.95
    1-methoxy-2-propanol 1399.68
    pyridine 839.65
    3-pentanone 539.18
    furfural 1088.08
    n-dodecane 89.93
    diethylene glycol 947.24
    diisopropyl ether 363.18
    tert-amyl alcohol 798.49
    acetylacetone 794.19
    n-hexadecane 98.18
    acetophenone 426.38
    methyl propionate 574.11
    isopentyl acetate 315.47
    trichloroethylene 1074.08
    n-nonanol 358.04
    cyclohexanol 706.89
    benzyl alcohol 446.42
    2-ethylhexanol 316.27
    isooctanol 322.36
    dipropyl ether 505.59
    1,2-dichlorobenzene 384.07
    ethyl lactate 283.65
    propylene carbonate 530.7
    n-methylformamide 1158.97
    2-pentanol 654.75
    n-pentane 301.76
    1-propoxy-2-propanol 697.51
    1-methoxy-2-propyl acetate 441.94
    2-(2-methoxypropoxy) propanol 452.22
    mesitylene 290.64
    ε-caprolactone 604.83
    p-cymene 204.22
    epichlorohydrin 1060.38
    1,1,1-trichloroethane 714.17
    2-aminoethanol 776.67
    morpholine-4-carbaldehyde 1619.19
    sulfolane 1375.78
    2,2,4-trimethylpentane 145.46
    2-methyltetrahydrofuran 1055.26
    n-hexyl acetate 434.47
    isooctane 130.42
    2-(2-butoxyethoxy)ethanol 643.99
    sec-butyl acetate 264.27
    tert-butyl acetate 517.03
    decalin 134.97
    glycerin 816.26
    diglyme 1109.03
    acrylic acid 524.62
    isopropyl myristate 230.98
    n-butyric acid 636.09
    acetyl acetate 404.68
    di(2-ethylhexyl) phthalate 213.1
    ethyl propionate 352.5
    nitromethane 1187.11
    1,2-diethoxyethane 556.21
    benzonitrile 406.42
    trioctyl phosphate 189.71
    1-bromopropane 543.39
    gamma-valerolactone 1269.22
    n-decanol 283.03
    triethyl phosphate 204.09
    4-methyl-2-pentanol 383.57
    propionitrile 463.83
    vinylene carbonate 504.95
    1,1,2-trichlorotrifluoroethane 952.64
    DMS 319.17
    cumene 194.21
    2-octanol 359.19
    2-hexanone 452.38
    octyl acetate 284.2
    limonene 304.04
    1,2-dimethoxyethane 1326.24
    ethyl orthosilicate 214.71
    tributyl phosphate 195.73
    diacetone alcohol 694.43
    N,N-dimethylaniline 497.07
    acrylonitrile 581.63
    aniline 522.35
    1,3-propanediol 925.78
    bromobenzene 412.9
    dibromomethane 780.44
    1,1,2,2-tetrachloroethane 957.98
    2-methyl-cyclohexyl acetate 264.83
    tetrabutyl urea 302.79
    diisobutyl methanol 270.42
    2-phenylethanol 408.02
    styrene 300.91
    dioctyl adipate 285.45
    dimethyl sulfate 779.89
    ethyl butyrate 319.53
    methyl lactate 494.06
    butyl lactate 341.16
    diethyl carbonate 223.65
    propanediol butyl ether 612.78
    triethyl orthoformate 281.09
    p-tert-butyltoluene 232.32
    methyl 4-tert-butylbenzoate 470.76
    morpholine 1385.8
    tert-butylamine 817.57
    n-dodecanol 236.57
    dimethoxymethane 1835.29
    ethylene carbonate 422.56
    cyrene 476.93
    2-ethoxyethyl acetate 429.78
    2-ethylhexyl acetate 269.86
    1,2,4-trichlorobenzene 444.08
    4-methylpyridine 793.15
    dibutyl ether 365.9
    2,6-dimethyl-4-heptanol 270.42
    DEF 1000.23
    dimethyl isosorbide 698.08
    tetrachloroethylene 811.17
    eugenol 494.76
    triacetin 385.68
    span 80 493.95
    1,4-butanediol 456.66
    1,1-dichloroethane 734.42
    2-methyl-1-pentanol 418.66
    methyl formate 881.67
    2-methyl-1-butanol 571.36
    n-decane 130.35
    butyronitrile 515.41
    3,7-dimethyl-1-octanol 312.82
    1-chlorooctane 269.08
    1-chlorotetradecane 150.61
    n-nonane 133.69
    undecane 104.71
    tert-butylcyclohexane 143.49
    cyclooctane 139.14
    cyclopentanol 838.63
    tetrahydropyran 994.67
    tert-amyl methyl ether 637.5
    2,5,8-trioxanonane 805.34
    1-hexene 391.49
    2-isopropoxyethanol 637.14
    2,2,2-trifluoroethanol 459.72
    methyl butyrate 447.51

    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