Iron oxide

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  • Identifiers

    CAS number
    12411-15-3

    Molecular formula
    FeO2

    SMILES
    O=[Fe]=O

    Safety labels

  • Odor profile

    Fragrance
    Odorless 93.0%
    Sharp 22.35%
    Sour 22.15%
    Burnt 20.67%
    Pungent 19.82%
    Caramellic 13.67%
    Bitter 13.65%
    Clean 11.15%
    Ethereal 10.51%
    Aromatic 9.62%

     

    Flavor
    Odorless 58.2%
    Bitter 57.34%
    Pungent 28.68%
    Formyl 26.05%
    Vinegar 25.11%
    Rotten 22.98%
    Mustard 21.77%
    Mousy 19.59%
    Sulfur 19.3%
    Decomposing cabbage 19.23%

     

  • Properties

    pKa est.
    -15.06 (strong acid)

    Molecular weight
    87.84 g/mol

    Flash point

    • -14.74 ˚C est.

  • Synonyms

    • Iron dioxide
    • Iron oxide (Fe2O4)
    • Iron oxide (FeO2)
    • 12411-15-3
    • Iron oxide (ACGIH)
    • RefChem:791356
    • DTXSID6049648
    • EINECS 215-570-8
    • 215-570-8
    • 1332-37-2
    • Iron oxide
    • dioxo-iron
    • SCHEMBL158658
    • 1332-37-2

  • Applications

    Iron oxide (CAS 12411-15-3) is widely used as a pigment and colorant across multiple industries. In coatings and paints it provides durable earth-tone colors; in plastics and polymers it serves as a stable filler and colorant; in cosmetics and personal care it is employed as a cosmetic color additive; in ceramics and glass it colors glazes and bodies; it also functions as an abrasive and polishing agent in finishing compounds; and it may be used as a support or adsorbent in catalytic and environmental applications.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 574.17
    methanol 775.0
    isopropanol 511.45
    water 145.71
    ethyl acetate 206.56
    n-propanol 383.96
    acetone 544.4
    n-butanol 337.38
    acetonitrile 346.88
    DMF 1602.14
    toluene 107.2
    isobutanol 259.0
    1,4-dioxane 415.53
    methyl acetate 239.08
    THF 671.53
    2-butanone 295.91
    n-pentanol 230.71
    sec-butanol 360.73
    n-hexane 79.22
    ethylene glycol 413.07
    NMP 667.0
    cyclohexane 82.0
    DMSO 1450.01
    n-butyl acetate 106.84
    n-octanol 163.01
    chloroform 297.7
    n-propyl acetate 134.23
    acetic acid 371.91
    dichloromethane 330.99
    cyclohexanone 229.08
    propylene glycol 307.1
    isopropyl acetate 150.21
    DMAc 816.0
    2-ethoxyethanol 424.58
    isopentanol 241.31
    n-heptane 65.74
    ethyl formate 199.53
    1,2-dichloroethane 279.37
    n-hexanol 191.59
    2-methoxyethanol 850.5
    isobutyl acetate 77.65
    tetrachloromethane 106.7
    n-pentyl acetate 120.81
    transcutol 436.71
    n-heptanol 149.99
    ethylbenzene 71.04
    MIBK 177.77
    2-propoxyethanol 354.73
    tert-butanol 577.5
    MTBE 323.65
    2-butoxyethanol 247.43
    propionic acid 228.43
    o-xylene 103.67
    formic acid 364.79
    diethyl ether 397.85
    m-xylene 102.81
    p-xylene 80.66
    chlorobenzene 102.32
    dimethyl carbonate 209.52
    n-octane 41.06
    formamide 562.35
    cyclopentanone 358.33
    2-pentanone 285.71
    anisole 164.73
    cyclopentyl methyl ether 305.04
    gamma-butyrolactone 342.06
    1-methoxy-2-propanol 637.45
    pyridine 251.42
    3-pentanone 210.69
    furfural 351.65
    n-dodecane 34.49
    diethylene glycol 411.49
    diisopropyl ether 148.15
    tert-amyl alcohol 383.03
    acetylacetone 253.49
    n-hexadecane 36.43
    acetophenone 137.37
    methyl propionate 243.56
    isopentyl acetate 90.89
    trichloroethylene 286.46
    n-nonanol 145.29
    cyclohexanol 243.61
    benzyl alcohol 146.17
    2-ethylhexanol 105.44
    isooctanol 112.08
    dipropyl ether 169.39
    1,2-dichlorobenzene 105.02
    ethyl lactate 121.69
    propylene carbonate 168.81
    n-methylformamide 609.09
    2-pentanol 284.07
    n-pentane 123.76
    1-propoxy-2-propanol 260.39
    1-methoxy-2-propyl acetate 139.82
    2-(2-methoxypropoxy) propanol 184.63
    mesitylene 83.28
    ε-caprolactone 190.3
    p-cymene 57.28
    epichlorohydrin 382.27
    1,1,1-trichloroethane 198.63
    2-aminoethanol 437.12
    morpholine-4-carbaldehyde 563.85
    sulfolane 495.32
    2,2,4-trimethylpentane 47.77
    2-methyltetrahydrofuran 378.16
    n-hexyl acetate 147.9
    isooctane 43.03
    2-(2-butoxyethoxy)ethanol 259.49
    sec-butyl acetate 89.94
    tert-butyl acetate 179.01
    decalin 36.47
    glycerin 463.29
    diglyme 410.17
    acrylic acid 226.46
    isopropyl myristate 84.05
    n-butyric acid 236.39
    acetyl acetate 110.12
    di(2-ethylhexyl) phthalate 74.38
    ethyl propionate 138.26
    nitromethane 525.75
    1,2-diethoxyethane 189.49
    benzonitrile 121.2
    trioctyl phosphate 71.39
    1-bromopropane 202.93
    gamma-valerolactone 385.41
    n-decanol 118.04
    triethyl phosphate 71.73
    4-methyl-2-pentanol 155.55
    propionitrile 226.29
    vinylene carbonate 151.67
    1,1,2-trichlorotrifluoroethane 321.75
    DMS 114.47
    cumene 59.59
    2-octanol 132.51
    2-hexanone 157.57
    octyl acetate 105.37
    limonene 83.03
    1,2-dimethoxyethane 570.66
    ethyl orthosilicate 73.78
    tributyl phosphate 71.25
    diacetone alcohol 273.14
    N,N-dimethylaniline 172.7
    acrylonitrile 274.89
    aniline 170.89
    1,3-propanediol 458.05
    bromobenzene 97.23
    dibromomethane 258.11
    1,1,2,2-tetrachloroethane 284.63
    2-methyl-cyclohexyl acetate 80.61
    tetrabutyl urea 118.35
    diisobutyl methanol 90.34
    2-phenylethanol 124.73
    styrene 86.79
    dioctyl adipate 101.71
    dimethyl sulfate 349.52
    ethyl butyrate 97.78
    methyl lactate 231.19
    butyl lactate 116.51
    diethyl carbonate 72.33
    propanediol butyl ether 231.4
    triethyl orthoformate 86.34
    p-tert-butyltoluene 65.03
    methyl 4-tert-butylbenzoate 163.39
    morpholine 494.68
    tert-butylamine 385.69
    n-dodecanol 97.76
    dimethoxymethane 802.68
    ethylene carbonate 129.46
    cyrene 166.35
    2-ethoxyethyl acetate 142.07
    2-ethylhexyl acetate 74.81
    1,2,4-trichlorobenzene 119.22
    4-methylpyridine 229.1
    dibutyl ether 132.75
    2,6-dimethyl-4-heptanol 90.34
    DEF 404.49
    dimethyl isosorbide 242.27
    tetrachloroethylene 231.59
    eugenol 182.06
    triacetin 130.27
    span 80 177.68
    1,4-butanediol 215.98
    1,1-dichloroethane 242.77
    2-methyl-1-pentanol 167.35
    methyl formate 419.98
    2-methyl-1-butanol 228.4
    n-decane 49.17
    butyronitrile 208.39
    3,7-dimethyl-1-octanol 115.42
    1-chlorooctane 96.14
    1-chlorotetradecane 54.48
    n-nonane 50.28
    undecane 40.18
    tert-butylcyclohexane 38.79
    cyclooctane 42.0
    cyclopentanol 318.56
    tetrahydropyran 319.86
    tert-amyl methyl ether 273.87
    2,5,8-trioxanonane 318.39
    1-hexene 132.38
    2-isopropoxyethanol 284.64
    2,2,2-trifluoroethanol 200.91
    methyl butyrate 164.56

    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