Cadmium Oxide

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  • Identifiers

    CAS number
    1306-19-0

    Molecular formula
    CdO

    SMILES
    O=[Cd]

    Safety labels

    Acute Toxic
    Acute Toxic

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 93.7%
    Pungent 22.81%
    Sharp 20.81%
    Burnt 16.16%
    Sour 15.87%
    Bitter 15.54%
    Ethereal 10.47%
    Caramellic 10.06%
    Fermented 9.77%
    Malty 9.41%

     

  • Properties

    pKa est.
    1.18 (strong acid)

    Molecular weight
    128.41 g/mol

    Melting point expt.

    • Greater than 2732 °F (EPA, 1998)
    • 2599 °F

    Boiling point

    • 2838 °F at 760 mmHg (sublimes) (NTP, 1992)
    • 1559 °C (sublimes)
    • 2838 °F (sublimes)
    • Decomposes

    Flash point

    • -4.78 ˚C est.

    Solubility expt.

    • less than 1 mg/mL at 68 °F (NTP, 1992)
    • Soluble in dilute acid
    • Slowly soluble in ammonium salts
    • Insoluble in alkalies
    • Insoluble in water
    • Solubility in water: none
    • Insoluble

  • Synonyms

    • CADMIUM OXIDE
    • 1306-19-0
    • Cadmium fume
    • Cadmium monoxide
    • Aska-Rid
    • Cadmium oxide (CdO)
    • Kadmu tlenek
    • Kadmu tlenek [Polish]
    • Caswell No. 136AA
    • CCRIS 115
    • HSDB 1613
    • NCI-C02551
    • Cadmium oxide fume
    • EINECS 215-146-2
    • EPA Pesticide Chemical Code 236200
    • MFCD00010921
    • 0H3KWS8KJ3
    • DTXSID0024715
    • NIOSH/EV1930000
    • EC 215-146-2
    • oxocadmium
    • NCGC00091341-01
    • EV19300000
    • KADMU TLENEK (POLISH)
    • DTXCID104715
    • CAS-1306-19-0
    • UNII-0H3KWS8KJ3
    • AskaRid
    • Cadmium oxide brown
    • Cadmium(II) oxide
    • Caswell No 136AA
    • NCI-CO2551
    • Cadmium oxide, puriss., 99.0%
    • DTXCID801332014
    • BAA30619
    • Tox21_111117
    • Tox21_202492
    • AKOS015904020
    • Cadmium oxide, 99.95% (metals basis)
    • NCGC00260041-01
    • Cadmium oxide, 99.998% (metals basis)
    • NS00081308
    • Cadmium oxide, >=99.99% trace metals basis
    • Cadmium oxide, powder, 99.5% trace metals basis
    • CDO: CADMIUM MONOXIDE, CADMIUM OXIDE FUME
    • Q196661
    • 215-146-2

  • Applications

    Cadmium oxide (CdO, CAS 1306-19-0) is used primarily as a precursor and colorant for cadmium pigments in ceramics, glass, and coatings (cadmium yellow to orange). It also serves in electronics and optoelectronics as an n-type semiconductor material and as a component in transparent conducting oxide systems and sensor devices. In polymer processing, cadmium-based stabilizers have historically been used to stabilize PVC and other plastics, although usage is increasingly restricted by safety regulations. CdO can be employed as a precursor to cadmium-containing oxides and pigments and may act as a dopant or base material in oxide-based functional materials for research and specialty applications.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1224.8
    methanol 1681.76
    isopropanol 949.54
    water 477.82
    ethyl acetate 279.89
    n-propanol 762.12
    acetone 895.06
    n-butanol 657.69
    acetonitrile 504.89
    DMF 2415.07
    toluene 94.35
    isobutanol 498.29
    1,4-dioxane 834.42
    methyl acetate 376.26
    THF 1030.9
    2-butanone 430.67
    n-pentanol 501.02
    sec-butanol 598.16
    n-hexane 53.09
    ethylene glycol 1161.13
    NMP 1045.89
    cyclohexane 61.33
    DMSO 1855.11
    n-butyl acetate 201.36
    n-octanol 283.95
    chloroform 353.29
    n-propyl acetate 256.28
    acetic acid 1055.75
    dichloromethane 381.62
    cyclohexanone 392.98
    propylene glycol 715.01
    isopropyl acetate 199.16
    DMAc 1171.83
    2-ethoxyethanol 947.05
    isopentanol 480.99
    n-heptane 66.1
    ethyl formate 305.2
    1,2-dichloroethane 309.69
    n-hexanol 382.39
    2-methoxyethanol 1683.13
    isobutyl acetate 157.69
    tetrachloromethane 108.52
    n-pentyl acetate 202.78
    transcutol 1319.35
    n-heptanol 266.58
    ethylbenzene 71.92
    MIBK 256.16
    2-propoxyethanol 743.51
    tert-butanol 890.55
    MTBE 369.41
    2-butoxyethanol 519.13
    propionic acid 516.97
    o-xylene 109.22
    formic acid 1082.08
    diethyl ether 443.41
    m-xylene 99.99
    p-xylene 81.89
    chlorobenzene 113.58
    dimethyl carbonate 245.29
    n-octane 32.92
    formamide 1281.16
    cyclopentanone 595.83
    2-pentanone 392.56
    anisole 243.41
    cyclopentyl methyl ether 439.35
    gamma-butyrolactone 562.41
    1-methoxy-2-propanol 1011.18
    pyridine 402.94
    3-pentanone 278.63
    furfural 592.92
    n-dodecane 33.38
    diethylene glycol 1010.11
    diisopropyl ether 156.01
    tert-amyl alcohol 573.35
    acetylacetone 373.98
    n-hexadecane 34.42
    acetophenone 229.59
    methyl propionate 311.81
    isopentyl acetate 166.4
    trichloroethylene 388.44
    n-nonanol 239.16
    cyclohexanol 426.7
    benzyl alcohol 278.68
    2-ethylhexanol 204.51
    isooctanol 208.23
    dipropyl ether 243.99
    1,2-dichlorobenzene 123.7
    ethyl lactate 214.99
    propylene carbonate 269.88
    n-methylformamide 1058.79
    2-pentanol 478.74
    n-pentane 89.55
    1-propoxy-2-propanol 505.37
    1-methoxy-2-propyl acetate 244.98
    2-(2-methoxypropoxy) propanol 403.45
    mesitylene 83.48
    ε-caprolactone 334.79
    p-cymene 79.46
    epichlorohydrin 587.13
    1,1,1-trichloroethane 204.1
    2-aminoethanol 1152.92
    morpholine-4-carbaldehyde 1143.37
    sulfolane 723.37
    2,2,4-trimethylpentane 43.5
    2-methyltetrahydrofuran 583.03
    n-hexyl acetate 253.83
    isooctane 39.98
    2-(2-butoxyethoxy)ethanol 612.73
    sec-butyl acetate 160.11
    tert-butyl acetate 230.28
    decalin 34.46
    glycerin 1112.46
    diglyme 874.61
    acrylic acid 526.4
    isopropyl myristate 132.23
    n-butyric acid 475.85
    acetyl acetate 178.66
    di(2-ethylhexyl) phthalate 131.55
    ethyl propionate 195.14
    nitromethane 1023.49
    1,2-diethoxyethane 376.25
    benzonitrile 208.48
    trioctyl phosphate 124.29
    1-bromopropane 194.14
    gamma-valerolactone 722.87
    n-decanol 193.5
    triethyl phosphate 113.38
    4-methyl-2-pentanol 266.76
    propionitrile 323.29
    vinylene carbonate 254.56
    1,1,2-trichlorotrifluoroethane 626.89
    DMS 185.72
    cumene 71.82
    2-octanol 200.52
    2-hexanone 278.17
    octyl acetate 173.76
    limonene 122.14
    1,2-dimethoxyethane 968.5
    ethyl orthosilicate 119.87
    tributyl phosphate 128.62
    diacetone alcohol 425.95
    N,N-dimethylaniline 238.92
    acrylonitrile 384.71
    aniline 263.19
    1,3-propanediol 1121.26
    bromobenzene 83.42
    dibromomethane 255.92
    1,1,2,2-tetrachloroethane 355.1
    2-methyl-cyclohexyl acetate 148.24
    tetrabutyl urea 211.99
    diisobutyl methanol 147.97
    2-phenylethanol 247.27
    styrene 92.88
    dioctyl adipate 176.27
    dimethyl sulfate 384.92
    ethyl butyrate 173.03
    methyl lactate 358.11
    butyl lactate 211.05
    diethyl carbonate 116.53
    propanediol butyl ether 536.41
    triethyl orthoformate 147.56
    p-tert-butyltoluene 83.67
    methyl 4-tert-butylbenzoate 249.85
    morpholine 1020.62
    tert-butylamine 549.87
    n-dodecanol 162.02
    dimethoxymethane 988.57
    ethylene carbonate 217.28
    cyrene 358.83
    2-ethoxyethyl acetate 260.79
    2-ethylhexyl acetate 135.56
    1,2,4-trichlorobenzene 157.59
    4-methylpyridine 317.57
    dibutyl ether 193.45
    2,6-dimethyl-4-heptanol 147.97
    DEF 592.61
    dimethyl isosorbide 458.63
    tetrachloroethylene 302.26
    eugenol 326.99
    triacetin 233.36
    span 80 379.39
    1,4-butanediol 584.93
    1,1-dichloroethane 261.1
    2-methyl-1-pentanol 365.54
    methyl formate 704.98
    2-methyl-1-butanol 428.62
    n-decane 45.05
    butyronitrile 324.14
    3,7-dimethyl-1-octanol 218.81
    1-chlorooctane 119.07
    1-chlorotetradecane 65.3
    n-nonane 43.4
    undecane 37.46
    tert-butylcyclohexane 37.4
    cyclooctane 31.47
    cyclopentanol 580.08
    tetrahydropyran 511.49
    tert-amyl methyl ether 323.93
    2,5,8-trioxanonane 694.92
    1-hexene 133.88
    2-isopropoxyethanol 627.26
    2,2,2-trifluoroethanol 529.2
    methyl butyrate 253.95

    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