Dipotassium hexadecyl phosphate

Overview IFRA Request a quote

  • Identifiers

    CAS number
    19045-75-1

    Molecular formula
    C16H33K2O4P

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

    Safety labels

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Waxy 58.09%
    Fatty 42.13%
    Odorless 38.77%
    Oily 35.28%
    Fresh 24.78%
    Citrus 23.39%
    Sweet 22.74%
    Woody 22.28%
    Balsamic 21.78%
    Clean 21.15%

     

    Flavor
    Fatty 41.23%
    Waxy 37.17%
    Mild 35.17%
    Odorless 33.09%
    Bland 32.92%
    Faint 28.43%
    Fat 25.63%
    Slightly waxy 24.12%
    Bay oil 23.31%
    Oily 23.12%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    4.95 (weak acid)

    Molecular weight
    398.6 g/mol

    Flash point

    • 223.03 ˚C est.

  • Synonyms

    • Dipotassium hexadecyl phosphate
    • Potassium cetyl phosphate
    • 19045-75-1
    • potassium hexadecyl phosphate
    • potassium monocetyl phosphate
    • dipotassium;hexadecyl phosphate
    • 84861-79-0
    • 1-Hexadecanol, dihydrogen phosphate, dipotassium salt
    • EINECS 242-778-6
    • EINECS 284-374-2
    • SCHEMBL61626
    • DTXSID0066450
    • CNXJITYCNQNTBD-UHFFFAOYSA-L
    • 1-Hexadecanol, 1-(dihydrogen phosphate), potassium salt (1:2)
    • NS00086011

  • Applications

    Dipotassium hexadecyl phosphate (CAS 19045-75-1) is an anionic surfactant and emulsifier used as a surface-active agent, emulsifier, and dispersant in oil–water systems. Real-world applications include detergents and household cleansers, cosmetics and personal care products, pigment dispersion and stabilization in coatings and inks, emulsification and dispersion in polymer and plastic formulations, and wetting adjuvant to improve spray spreading in agricultural formulations. Use is subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 36.05
    methanol 42.74
    isopropanol 36.09
    water 0.13
    ethyl acetate 38.68
    n-propanol 34.45
    acetone 59.44
    n-butanol 29.55
    acetonitrile 19.89
    DMF 164.61
    toluene 25.14
    isobutanol 26.07
    1,4-dioxane 72.25
    methyl acetate 35.06
    THF 244.45
    2-butanone 53.2
    n-pentanol 29.94
    sec-butanol 31.84
    n-hexane 5.53
    ethylene glycol 8.42
    NMP 290.99
    cyclohexane 15.06
    DMSO 256.61
    n-butyl acetate 59.64
    n-octanol 32.18
    chloroform 159.78
    n-propyl acetate 55.38
    acetic acid 40.29
    dichloromethane 152.22
    cyclohexanone 157.02
    propylene glycol 20.46
    isopropyl acetate 44.22
    DMAc 186.47
    2-ethoxyethanol 67.17
    isopentanol 30.38
    n-heptane 5.86
    ethyl formate 29.27
    1,2-dichloroethane 123.06
    n-hexanol 32.79
    2-methoxyethanol 80.75
    isobutyl acetate 39.86
    tetrachloromethane 30.17
    n-pentyl acetate 86.84
    transcutol 207.61
    n-heptanol 32.22
    ethylbenzene 18.27
    MIBK 52.12
    2-propoxyethanol 79.95
    tert-butanol 56.98
    MTBE 44.8
    2-butoxyethanol 80.43
    propionic acid 39.7
    o-xylene 26.34
    formic acid 17.05
    diethyl ether 31.93
    m-xylene 24.17
    p-xylene 25.85
    chlorobenzene 43.19
    dimethyl carbonate 22.87
    n-octane 4.19
    formamide 41.19
    cyclopentanone 219.79
    2-pentanone 53.34
    anisole 44.37
    cyclopentyl methyl ether 93.05
    gamma-butyrolactone 190.94
    1-methoxy-2-propanol 81.65
    pyridine 77.8
    3-pentanone 43.73
    furfural 152.4
    n-dodecane 2.81
    diethylene glycol 45.51
    diisopropyl ether 19.04
    tert-amyl alcohol 48.85
    acetylacetone 89.49
    n-hexadecane 3.35
    acetophenone 66.24
    methyl propionate 39.2
    isopentyl acetate 63.5
    trichloroethylene 204.61
    n-nonanol 32.52
    cyclohexanol 47.05
    benzyl alcohol 38.13
    2-ethylhexanol 26.56
    isooctanol 30.32
    dipropyl ether 36.74
    1,2-dichlorobenzene 63.75
    ethyl lactate 35.81
    propylene carbonate 101.06
    n-methylformamide 55.81
    2-pentanol 24.01
    n-pentane 4.67
    1-propoxy-2-propanol 73.35
    1-methoxy-2-propyl acetate 73.98
    2-(2-methoxypropoxy) propanol 76.71
    mesitylene 20.57
    ε-caprolactone 132.15
    p-cymene 21.21
    epichlorohydrin 184.33
    1,1,1-trichloroethane 97.03
    2-aminoethanol 26.51
    morpholine-4-carbaldehyde 166.72
    sulfolane 410.47
    2,2,4-trimethylpentane 5.04
    2-methyltetrahydrofuran 122.16
    n-hexyl acetate 83.49
    isooctane 3.61
    2-(2-butoxyethoxy)ethanol 102.55
    sec-butyl acetate 42.64
    tert-butyl acetate 77.02
    decalin 8.03
    glycerin 33.49
    diglyme 167.47
    acrylic acid 32.23
    isopropyl myristate 32.57
    n-butyric acid 57.34
    acetyl acetate 34.96
    di(2-ethylhexyl) phthalate 37.75
    ethyl propionate 40.18
    nitromethane 80.08
    1,2-diethoxyethane 71.87
    benzonitrile 43.08
    trioctyl phosphate 27.55
    1-bromopropane 54.63
    gamma-valerolactone 245.98
    n-decanol 22.19
    triethyl phosphate 35.83
    4-methyl-2-pentanol 20.03
    propionitrile 23.4
    vinylene carbonate 71.84
    1,1,2-trichlorotrifluoroethane 151.89
    DMS 54.02
    cumene 16.65
    2-octanol 28.61
    2-hexanone 56.03
    octyl acetate 41.32
    limonene 31.78
    1,2-dimethoxyethane 103.29
    ethyl orthosilicate 36.14
    tributyl phosphate 31.92
    diacetone alcohol 93.37
    N,N-dimethylaniline 40.88
    acrylonitrile 30.29
    aniline 34.49
    1,3-propanediol 35.02
    bromobenzene 48.82
    dibromomethane 104.1
    1,1,2,2-tetrachloroethane 213.66
    2-methyl-cyclohexyl acetate 66.13
    tetrabutyl urea 52.29
    diisobutyl methanol 23.07
    2-phenylethanol 43.05
    styrene 22.2
    dioctyl adipate 56.19
    dimethyl sulfate 71.26
    ethyl butyrate 48.03
    methyl lactate 36.96
    butyl lactate 73.37
    diethyl carbonate 30.64
    propanediol butyl ether 77.68
    triethyl orthoformate 44.75
    p-tert-butyltoluene 22.59
    methyl 4-tert-butylbenzoate 90.81
    morpholine 111.62
    tert-butylamine 36.83
    n-dodecanol 15.84
    dimethoxymethane 75.16
    ethylene carbonate 61.69
    cyrene 88.41
    2-ethoxyethyl acetate 94.52
    2-ethylhexyl acetate 52.62
    1,2,4-trichlorobenzene 79.43
    4-methylpyridine 68.62
    dibutyl ether 35.59
    2,6-dimethyl-4-heptanol 23.07
    DEF 77.37
    dimethyl isosorbide 162.01
    tetrachloroethylene 135.3
    eugenol 78.74
    triacetin 101.55
    span 80 79.33
    1,4-butanediol 17.27
    1,1-dichloroethane 75.45
    2-methyl-1-pentanol 28.14
    methyl formate 31.61
    2-methyl-1-butanol 27.27
    n-decane 5.48
    butyronitrile 26.27
    3,7-dimethyl-1-octanol 30.96
    1-chlorooctane 24.94
    1-chlorotetradecane 9.35
    n-nonane 4.97
    undecane 3.77
    tert-butylcyclohexane 6.98
    cyclooctane 5.44
    cyclopentanol 71.09
    tetrahydropyran 85.77
    tert-amyl methyl ether 43.88
    2,5,8-trioxanonane 125.6
    1-hexene 14.49
    2-isopropoxyethanol 53.45
    2,2,2-trifluoroethanol 25.35
    methyl butyrate 58.58

    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