Potassium molybdate(VI)

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  • Identifiers

    CAS number
    13446-49-6

    Molecular formula
    K2MoO4

    SMILES
    [O-][Mo](=O)(=O)[O-].[K+].[K+]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 89.8%
    Sour 21.59%
    Sharp 15.12%
    Clean 13.65%
    Pungent 11.23%
    Burnt 10.4%
    Bitter 10.33%
    Sweet 9.69%
    Ethereal 9.6%
    Winey 9.31%

     

    Flavor
    Odorless 56.85%
    Bitter 32.88%
    Bland 22.14%
    Sour 21.92%
    Formyl 21.06%
    Mousy 19.86%
    Rotten 19.82%
    Urine 19.58%
    Nitrile 19.03%
    Yeast 18.98%

     

  • Properties

    pKa est.
    -23.7 (strong acid)

    Molecular weight
    238.14 g/mol

    Flash point

    • -1.75 ˚C est.

  • Synonyms

    • Potassium molybdate
    • 13446-49-6
    • Potassium molybdenum oxide
    • Dipotassium molybdate
    • Potassium orthomolybdate
    • Potassium molybdate(VI)
    • Dipotassium tetraoxomolybdate
    • Dipotassium tetraoxomolybdate(2-)
    • EINECS 236-599-2
    • RefChem:867895
    • SMJ2Z4OD47
    • Molybdate (moo4(sup 2-)), dipotassium, (T-4)-
    • Molybdic acid, dipotassium salt
    • Dipotassium tetraoxomolybdate(2)
    • POTASSIUM MOLYBDATE [MI]
    • Molybdate (MoO42), dipotassium, (T4)
    • (T4)Molybdate (MoO42) potassium (1:2)
    • Molybdate (MoO4(sup 2)), dipotassium, (T4)
    • Molybdate (MoO42), potassium (1:2), (T4)
    • Molybdate (MoO4(sup 2)), dipotassium, (T4) (9CI)
    • Molybdate (moo4(sup 2-)), dipotassium, (T-4)-(9CI)
    • 236-599-2
    • MFCD00011370
    • Potassiummolybdate
    • SCHEMBL137561
    • Potassium molybdenum oxide, anhydrous
    • E74871
    • Q4300385
    • 13446-49-6

  • Applications

    Potassium molybdate(VI) (CAS 13446-49-6) is primarily used as a micronutrient fertilizer supplying Mo to crops, helping prevent Mo deficiency in legumes and brassicas. In industry, the salt is used as a corrosion-inhibiting additive in cooling-water and boiler systems to protect metal surfaces. It also serves as a Mo-based catalyst precursor for chemical processes, including sulfidized MoS2-catalyzed hydrodesulfurization and other Mo-containing oxidation reactions. Additionally, it may be added to coatings and inks to improve corrosion resistance of metal substrates.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 517.14
    methanol 744.51
    isopropanol 460.72
    water 289.49
    ethyl acetate 196.15
    n-propanol 342.18
    acetone 544.95
    n-butanol 320.55
    acetonitrile 294.58
    DMF 1481.33
    toluene 99.59
    isobutanol 233.41
    1,4-dioxane 376.64
    methyl acetate 213.79
    THF 650.6
    2-butanone 276.33
    n-pentanol 222.11
    sec-butanol 336.57
    n-hexane 65.15
    ethylene glycol 434.93
    NMP 641.75
    cyclohexane 76.72
    DMSO 1489.78
    n-butyl acetate 97.23
    n-octanol 172.53
    chloroform 264.12
    n-propyl acetate 131.09
    acetic acid 300.89
    dichloromethane 316.87
    cyclohexanone 205.08
    propylene glycol 295.58
    isopropyl acetate 157.37
    DMAc 817.09
    2-ethoxyethanol 471.59
    isopentanol 231.99
    n-heptane 65.65
    ethyl formate 199.65
    1,2-dichloroethane 281.02
    n-hexanol 195.39
    2-methoxyethanol 925.74
    isobutyl acetate 74.77
    tetrachloromethane 100.52
    n-pentyl acetate 119.75
    transcutol 376.35
    n-heptanol 157.96
    ethylbenzene 65.75
    MIBK 186.98
    2-propoxyethanol 378.06
    tert-butanol 520.31
    MTBE 316.39
    2-butoxyethanol 253.47
    propionic acid 186.1
    o-xylene 104.48
    formic acid 415.82
    diethyl ether 404.3
    m-xylene 103.62
    p-xylene 70.6
    chlorobenzene 80.91
    dimethyl carbonate 221.79
    n-octane 39.59
    formamide 614.72
    cyclopentanone 329.63
    2-pentanone 288.86
    anisole 163.19
    cyclopentyl methyl ether 325.95
    gamma-butyrolactone 307.5
    1-methoxy-2-propanol 691.83
    pyridine 218.26
    3-pentanone 224.87
    furfural 323.55
    n-dodecane 32.37
    diethylene glycol 464.5
    diisopropyl ether 154.93
    tert-amyl alcohol 363.65
    acetylacetone 272.47
    n-hexadecane 34.1
    acetophenone 142.12
    methyl propionate 244.58
    isopentyl acetate 79.8
    trichloroethylene 267.8
    n-nonanol 154.22
    cyclohexanol 237.85
    benzyl alcohol 149.36
    2-ethylhexanol 104.77
    isooctanol 114.75
    dipropyl ether 173.84
    1,2-dichlorobenzene 91.93
    ethyl lactate 135.67
    propylene carbonate 159.38
    n-methylformamide 590.12
    2-pentanol 299.43
    n-pentane 126.22
    1-propoxy-2-propanol 265.45
    1-methoxy-2-propyl acetate 140.7
    2-(2-methoxypropoxy) propanol 183.0
    mesitylene 85.21
    ε-caprolactone 169.5
    p-cymene 61.65
    epichlorohydrin 357.68
    1,1,1-trichloroethane 170.92
    2-aminoethanol 421.13
    morpholine-4-carbaldehyde 546.27
    sulfolane 497.07
    2,2,4-trimethylpentane 45.88
    2-methyltetrahydrofuran 343.71
    n-hexyl acetate 136.87
    isooctane 40.33
    2-(2-butoxyethoxy)ethanol 238.9
    sec-butyl acetate 89.8
    tert-butyl acetate 179.31
    decalin 30.64
    glycerin 503.73
    diglyme 373.91
    acrylic acid 188.66
    isopropyl myristate 84.77
    n-butyric acid 202.58
    acetyl acetate 114.85
    di(2-ethylhexyl) phthalate 74.38
    ethyl propionate 138.92
    nitromethane 485.1
    1,2-diethoxyethane 176.45
    benzonitrile 104.36
    trioctyl phosphate 74.63
    1-bromopropane 194.63
    gamma-valerolactone 347.94
    n-decanol 128.24
    triethyl phosphate 75.32
    4-methyl-2-pentanol 169.49
    propionitrile 199.79
    vinylene carbonate 139.42
    1,1,2-trichlorotrifluoroethane 319.95
    DMS 103.29
    cumene 58.36
    2-octanol 135.54
    2-hexanone 157.53
    octyl acetate 103.16
    limonene 87.93
    1,2-dimethoxyethane 563.9
    ethyl orthosilicate 77.04
    tributyl phosphate 70.59
    diacetone alcohol 289.13
    N,N-dimethylaniline 187.23
    acrylonitrile 236.94
    aniline 172.38
    1,3-propanediol 469.57
    bromobenzene 71.22
    dibromomethane 246.46
    1,1,2,2-tetrachloroethane 282.35
    2-methyl-cyclohexyl acetate 83.32
    tetrabutyl urea 122.66
    diisobutyl methanol 92.26
    2-phenylethanol 131.79
    styrene 72.42
    dioctyl adipate 95.23
    dimethyl sulfate 375.5
    ethyl butyrate 99.06
    methyl lactate 262.69
    butyl lactate 114.53
    diethyl carbonate 73.5
    propanediol butyl ether 215.43
    triethyl orthoformate 87.31
    p-tert-butyltoluene 69.53
    methyl 4-tert-butylbenzoate 166.54
    morpholine 452.23
    tert-butylamine 358.82
    n-dodecanol 106.32
    dimethoxymethane 887.53
    ethylene carbonate 121.88
    cyrene 192.2
    2-ethoxyethyl acetate 128.97
    2-ethylhexyl acetate 67.64
    1,2,4-trichlorobenzene 102.59
    4-methylpyridine 204.55
    dibutyl ether 119.4
    2,6-dimethyl-4-heptanol 92.26
    DEF 407.21
    dimethyl isosorbide 234.69
    tetrachloroethylene 217.47
    eugenol 185.32
    triacetin 123.36
    span 80 161.65
    1,4-butanediol 229.18
    1,1-dichloroethane 222.25
    2-methyl-1-pentanol 156.89
    methyl formate 419.33
    2-methyl-1-butanol 215.94
    n-decane 46.07
    butyronitrile 184.87
    3,7-dimethyl-1-octanol 116.44
    1-chlorooctane 97.46
    1-chlorotetradecane 52.27
    n-nonane 46.71
    undecane 37.6
    tert-butylcyclohexane 31.14
    cyclooctane 45.63
    cyclopentanol 289.93
    tetrahydropyran 269.39
    tert-amyl methyl ether 276.18
    2,5,8-trioxanonane 306.53
    1-hexene 115.25
    2-isopropoxyethanol 310.41
    2,2,2-trifluoroethanol 220.78
    methyl butyrate 160.46

    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