Ceria

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  • Identifiers

    CAS number
    1306-38-3

    Molecular formula
    CeO2

    SMILES
    O=[Ce]=O

    Safety labels

  • Odor profile

    Fragrance
    Odorless 92.05%
    Sharp 24.28%
    Sour 22.73%
    Pungent 22.72%
    Burnt 21.38%
    Bitter 14.99%
    Caramellic 13.4%
    Ethereal 11.61%
    Clean 10.83%
    Aromatic 10.15%

     

    Flavor
    Odorless 62.24%
    Bitter 50.51%
    Pungent 28.45%
    Formyl 26.2%
    Vinegar 25.78%
    Rotten 23.2%
    Mustard 23.19%
    Sulfur 19.86%
    Mousy 19.79%
    Nitrile 19.23%

     

  • Properties

    pKa est.
    -218.41 (strong acid)

    Molecular weight
    172.115 g/mol

    Flash point

    • -242.67 ˚C est.

  • Synonyms

    • Ceric oxide
    • 1306-38-3
    • Ceria
    • Cerium(IV)dioxide
    • Ceric dioxide
    • Needlal
    • Nidoral
    • Opaline
    • Cerium(4+) oxide
    • Needlal U15
    • Needlal W15
    • Molycomp 5310
    • CHEBI:79089
    • 619G5K328Y
    • Cerium Oxydatum
    • RefChem:58009
    • DTXCID801509322
    • 215-150-4
    • DTXSID4040214
    • Cerium dioxide
    • dioxocerium
    • Cerium oxide (CeO2)
    • CeO2
    • CERAMICS-AEium(IV) oxide
    • MFCD00010933
    • Needlal W10-01
    • MFCD00010927
    • CCRIS 2288
    • EINECS 215-150-4
    • UNII-619G5K328Y
    • Cerium Oxide Dispersion
    • Cerium Oxide Nanopowder
    • EC 215-150-4
    • Cerium(IV) oxide, REacton
    • Cerium(IV) oxide nanopowder
    • Cerium(IV) oxide, puriss.
    • Cerium(IV) Oxide, Hydrated
    • SCHEMBL64883
    • Cerium(IV) oxide, REacton?
    • orb2939721
    • Cerium oxide powder (~5 micron)
    • Cerium(IV) oxide, >=99.0%
    • Cerium(IV) oxide, powder, 90%
    • Cerium oxide powder (1~3 micron)
    • HY-W076148D
    • Cerium Oxide Powder / CeO2 Powder
    • AKOS025310685
    • Cerium oxide nanopowder (10~30 nm)
    • Cerium(IV) oxide (99.9%-Ce) (REO)
    • Cerium oxide nanopowder (100~1000 nm)
    • Cerium Oxide Powder, 99.9% (REO) Nano
    • NS00129461
    • Cerium oxide, 99.99% metals basis, <5 mum
    • Cerium oxide nanopowder doped with Gadolinium (<100 nm)
    • Cerium(IV) oxide, powder, 99.995% trace metals basis
    • Cerium(IV) oxide, nanopowder, <25 nm particle size (BET)
    • Cerium(IV) oxide, powder, <5 mum, 99.9% trace metals basis
    • Cerium(IV) oxide, fused, pieces, 3-6 mm, 99.9% trace metals basis
    • Cerium(IV) oxide, NanoArc CE-6440, 25% in H2O, colloidal dispersion
    • Cerium oxide, 20% in H2O, colloidal dispersion, 0.01-0.02 Micron Particles, pH 3.0
    • Cerium(IV) oxide, dispersion, 20 wt. % colloidal dispersion in 2.5% acetic acid, 30-50 nm avg. part. size
    • 1306-38-3

  • Applications

    Ceria (CeO2), CAS 1306-38-3, is a versatile oxide with broad industrial relevance: in automotive exhaust catalysts as an oxygen-storage and redox material to facilitate oxidation and reduction reactions; as ultra-fine ceria polishing powders for glass, sapphire, and other precision surfaces; as a catalyst support and promoter in various chemical processes; as a functional material for solid oxide fuel cells and related electrochemical devices; and as a densification aid in ceramics and glass formulations.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 172.69
    methanol 176.7
    isopropanol 155.28
    water 18.01
    ethyl acetate 195.51
    n-propanol 137.45
    acetone 342.97
    n-butanol 137.62
    acetonitrile 229.04
    DMF 655.65
    toluene 142.76
    isobutanol 107.95
    1,4-dioxane 366.22
    methyl acetate 211.86
    THF 502.99
    2-butanone 222.41
    n-pentanol 115.13
    sec-butanol 144.32
    n-hexane 63.87
    ethylene glycol 112.2
    NMP 652.6
    cyclohexane 85.72
    DMSO 642.68
    n-butyl acetate 143.3
    n-octanol 117.64
    chloroform 440.0
    n-propyl acetate 145.87
    acetic acid 235.64
    dichloromethane 402.54
    cyclohexanone 282.42
    propylene glycol 97.05
    isopropyl acetate 144.45
    DMAc 563.12
    2-ethoxyethanol 204.41
    isopentanol 116.08
    n-heptane 59.24
    ethyl formate 157.39
    1,2-dichloroethane 292.92
    n-hexanol 128.29
    2-methoxyethanol 333.3
    isobutyl acetate 103.2
    tetrachloromethane 156.31
    n-pentyl acetate 137.66
    transcutol 347.19
    n-heptanol 107.7
    ethylbenzene 91.51
    MIBK 145.61
    2-propoxyethanol 214.32
    tert-butanol 198.57
    MTBE 194.54
    2-butoxyethanol 170.49
    propionic acid 143.15
    o-xylene 128.68
    formic acid 134.21
    diethyl ether 217.72
    m-xylene 121.83
    p-xylene 117.05
    chlorobenzene 171.53
    dimethyl carbonate 160.39
    n-octane 37.55
    formamide 205.74
    cyclopentanone 387.88
    2-pentanone 208.99
    anisole 187.06
    cyclopentyl methyl ether 258.91
    gamma-butyrolactone 381.69
    1-methoxy-2-propanol 272.69
    pyridine 280.46
    3-pentanone 188.07
    furfural 410.23
    n-dodecane 33.61
    diethylene glycol 217.08
    diisopropyl ether 107.54
    tert-amyl alcohol 177.73
    acetylacetone 279.74
    n-hexadecane 36.85
    acetophenone 180.74
    methyl propionate 194.54
    isopentyl acetate 130.28
    trichloroethylene 422.13
    n-nonanol 107.5
    cyclohexanol 169.88
    benzyl alcohol 139.5
    2-ethylhexanol 100.46
    isooctanol 91.5
    dipropyl ether 140.04
    1,2-dichlorobenzene 187.83
    ethyl lactate 106.84
    propylene carbonate 224.65
    n-methylformamide 250.29
    2-pentanol 125.33
    n-pentane 73.31
    1-propoxy-2-propanol 172.48
    1-methoxy-2-propyl acetate 164.64
    2-(2-methoxypropoxy) propanol 173.04
    mesitylene 99.58
    ε-caprolactone 241.77
    p-cymene 81.61
    epichlorohydrin 384.04
    1,1,1-trichloroethane 307.79
    2-aminoethanol 133.04
    morpholine-4-carbaldehyde 505.54
    sulfolane 561.39
    2,2,4-trimethylpentane 46.55
    2-methyltetrahydrofuran 316.6
    n-hexyl acetate 158.46
    isooctane 37.09
    2-(2-butoxyethoxy)ethanol 202.79
    sec-butyl acetate 110.14
    tert-butyl acetate 177.88
    decalin 50.69
    glycerin 161.45
    diglyme 338.7
    acrylic acid 159.17
    isopropyl myristate 98.82
    n-butyric acid 164.63
    acetyl acetate 173.15
    di(2-ethylhexyl) phthalate 98.31
    ethyl propionate 141.33
    nitromethane 386.76
    1,2-diethoxyethane 175.14
    benzonitrile 162.2
    trioctyl phosphate 81.16
    1-bromopropane 197.99
    gamma-valerolactone 403.13
    n-decanol 90.97
    triethyl phosphate 100.67
    4-methyl-2-pentanol 89.13
    propionitrile 153.72
    vinylene carbonate 213.48
    1,1,2-trichlorotrifluoroethane 331.8
    DMS 149.45
    cumene 75.56
    2-octanol 96.1
    2-hexanone 157.74
    octyl acetate 117.22
    limonene 116.03
    1,2-dimethoxyethane 339.91
    ethyl orthosilicate 100.48
    tributyl phosphate 84.21
    diacetone alcohol 206.13
    N,N-dimethylaniline 171.37
    acrylonitrile 198.59
    aniline 166.33
    1,3-propanediol 164.91
    bromobenzene 183.72
    dibromomethane 316.76
    1,1,2,2-tetrachloroethane 387.09
    2-methyl-cyclohexyl acetate 123.71
    tetrabutyl urea 125.99
    diisobutyl methanol 82.47
    2-phenylethanol 136.82
    styrene 114.3
    dioctyl adipate 129.54
    dimethyl sulfate 291.4
    ethyl butyrate 131.52
    methyl lactate 152.53
    butyl lactate 119.15
    diethyl carbonate 102.77
    propanediol butyl ether 162.61
    triethyl orthoformate 115.53
    p-tert-butyltoluene 87.79
    methyl 4-tert-butylbenzoate 187.59
    morpholine 360.89
    tert-butylamine 155.03
    n-dodecanol 80.61
    dimethoxymethane 380.74
    ethylene carbonate 171.59
    cyrene 197.43
    2-ethoxyethyl acetate 168.04
    2-ethylhexyl acetate 117.34
    1,2,4-trichlorobenzene 225.67
    4-methylpyridine 271.35
    dibutyl ether 117.21
    2,6-dimethyl-4-heptanol 82.47
    DEF 291.34
    dimethyl isosorbide 270.46
    tetrachloroethylene 281.62
    eugenol 182.25
    triacetin 179.35
    span 80 171.26
    1,4-butanediol 90.81
    1,1-dichloroethane 279.07
    2-methyl-1-pentanol 106.14
    methyl formate 218.75
    2-methyl-1-butanol 112.47
    n-decane 44.94
    butyronitrile 156.5
    3,7-dimethyl-1-octanol 102.4
    1-chlorooctane 100.53
    1-chlorotetradecane 59.88
    n-nonane 45.23
    undecane 37.9
    tert-butylcyclohexane 48.28
    cyclooctane 47.48
    cyclopentanol 202.12
    tetrahydropyran 274.21
    tert-amyl methyl ether 185.24
    2,5,8-trioxanonane 269.82
    1-hexene 105.72
    2-isopropoxyethanol 160.1
    2,2,2-trifluoroethanol 160.68
    methyl butyrate 165.02

    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