phosphoric acid, dodecyl ester, sodium salt

Overview IFRA Request a quote

  • Identifiers

    CAS number
    50957-96-5

    Molecular formula
    C12H26NaO4P

    SMILES
    CCCCCCCCCCCCOP(=O)(O)[O-].[Na+]

    Safety labels

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Waxy 47.0%
    Odorless 38.13%
    Fatty 37.06%
    Oily 34.02%
    Fresh 32.55%
    Citrus 32.11%
    Floral 25.89%
    Clean 23.74%
    Balsamic 23.2%
    Herbal 23.04%

     

    Flavor
    Fatty 52.96%
    Waxy 46.69%
    Mild 35.55%
    Odorless 33.74%
    Oily 29.57%
    Cheese 28.31%
    Fat 28.21%
    Bland 27.23%
    Faint 24.88%
    Coconut 24.84%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    6.46 (neutral)

    Molecular weight
    288.3 g/mol

    Flash point

    • 198.09 ˚C est.

  • Synonyms

    • 50957-96-5
    • DTXSID10885426
    • RefChem:862596
    • DTXCID501024806
    • Phosphoric acid, dodecyl ester, sodium salt
    • Monosodium monolauryl phosphate
    • 17026-83-4
    • Sodium Monododecyl Phosphate (contains
    • Monosodium dodecyl phosphate
    • sodium;dodecyl hydrogen phosphate
    • Monododecyl monosodium phosphate
    • Monolauryl phosphate monosodium salt
    • BU62RK2OES
    • 24613-62-5
    • sodium dodecyl hydrogen phosphate
    • Phosphoric acid, monododecyl ester, sodium salt (1:1)
    • Dodecyl dihydrogen phosphate Sodium salt
    • UNII-BU62RK2OES
    • starbld0012723
    • SCHEMBL1044172
    • JDSVWTAJRNTSSL-UHFFFAOYSA-M
    • Dodecyl dihydrogen phosphate xSodium salt
    • NS00089129
    • Q27274885
    • 50957-96-5

  • Applications

    Phosphoric acid, dodecyl ester, sodium salt (CAS 50957-96-5) is an anionic surfactant formed from the dodecyl ester of phosphoric acid as the sodium salt. In practical formulations, it is used as a surface-active agent and emulsifier across several industries, including household and industrial cleaners for effective soil removal; in coatings and inks as a wetting agent and dispersant to improve coating uniformity; as an emulsifier or dispersant in polymer and plastic processing; in cosmetics and personal care as a surfactant/emulsifier in cleansers and emulsion-based products; and as an adjuvant surfactant in agricultural formulations to enhance spreading, wetting, and adhesion of pesticides. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 257.4
    methanol 331.83
    isopropanol 189.54
    water 0.36
    ethyl acetate 78.89
    n-propanol 185.93
    acetone 196.65
    n-butanol 143.08
    acetonitrile 50.49
    DMF 483.87
    toluene 51.06
    isobutanol 122.94
    1,4-dioxane 194.42
    methyl acetate 72.94
    THF 637.44
    2-butanone 129.44
    n-pentanol 129.11
    sec-butanol 141.93
    n-hexane 13.23
    ethylene glycol 63.45
    NMP 461.89
    cyclohexane 25.79
    DMSO 794.88
    n-butyl acetate 113.45
    n-octanol 72.44
    chloroform 196.91
    n-propyl acetate 103.9
    acetic acid 125.68
    dichloromethane 193.04
    cyclohexanone 310.66
    propylene glycol 138.01
    isopropyl acetate 88.8
    DMAc 331.67
    2-ethoxyethanol 246.05
    isopentanol 123.22
    n-heptane 9.75
    ethyl formate 65.54
    1,2-dichloroethane 196.96
    n-hexanol 128.87
    2-methoxyethanol 364.37
    isobutyl acetate 71.48
    tetrachloromethane 32.69
    n-pentyl acetate 114.41
    transcutol 457.94
    n-heptanol 87.35
    ethylbenzene 31.9
    MIBK 122.65
    2-propoxyethanol 257.7
    tert-butanol 250.85
    MTBE 137.36
    2-butoxyethanol 180.1
    propionic acid 115.76
    o-xylene 46.35
    formic acid 72.36
    diethyl ether 97.08
    m-xylene 50.7
    p-xylene 41.54
    chlorobenzene 63.92
    dimethyl carbonate 42.09
    n-octane 6.16
    formamide 146.78
    cyclopentanone 425.78
    2-pentanone 148.34
    anisole 79.71
    cyclopentyl methyl ether 224.85
    gamma-butyrolactone 347.74
    1-methoxy-2-propanol 318.7
    pyridine 146.14
    3-pentanone 90.56
    furfural 261.43
    n-dodecane 4.45
    diethylene glycol 172.14
    diisopropyl ether 44.42
    tert-amyl alcohol 199.97
    acetylacetone 182.33
    n-hexadecane 5.18
    acetophenone 102.24
    methyl propionate 84.27
    isopentyl acetate 118.75
    trichloroethylene 263.37
    n-nonanol 67.14
    cyclohexanol 162.9
    benzyl alcohol 92.7
    2-ethylhexanol 70.65
    isooctanol 74.32
    dipropyl ether 69.23
    1,2-dichlorobenzene 75.79
    ethyl lactate 66.99
    propylene carbonate 155.5
    n-methylformamide 187.4
    2-pentanol 102.15
    n-pentane 12.44
    1-propoxy-2-propanol 187.75
    1-methoxy-2-propyl acetate 133.37
    2-(2-methoxypropoxy) propanol 137.96
    mesitylene 39.87
    ε-caprolactone 227.26
    p-cymene 29.2
    epichlorohydrin 333.44
    1,1,1-trichloroethane 114.21
    2-aminoethanol 180.45
    morpholine-4-carbaldehyde 336.65
    sulfolane 678.06
    2,2,4-trimethylpentane 9.0
    2-methyltetrahydrofuran 293.24
    n-hexyl acetate 129.44
    isooctane 7.68
    2-(2-butoxyethoxy)ethanol 217.34
    sec-butyl acetate 73.45
    tert-butyl acetate 148.43
    decalin 11.85
    glycerin 173.78
    diglyme 302.61
    acrylic acid 92.59
    isopropyl myristate 50.24
    n-butyric acid 158.12
    acetyl acetate 56.58
    di(2-ethylhexyl) phthalate 59.02
    ethyl propionate 69.02
    nitromethane 169.0
    1,2-diethoxyethane 128.51
    benzonitrile 81.87
    trioctyl phosphate 48.58
    1-bromopropane 91.95
    gamma-valerolactone 453.64
    n-decanol 50.16
    triethyl phosphate 44.22
    4-methyl-2-pentanol 68.85
    propionitrile 57.24
    vinylene carbonate 111.13
    1,1,2-trichlorotrifluoroethane 260.21
    DMS 78.33
    cumene 26.79
    2-octanol 62.92
    2-hexanone 126.75
    octyl acetate 66.07
    limonene 47.11
    1,2-dimethoxyethane 268.59
    ethyl orthosilicate 46.43
    tributyl phosphate 50.97
    diacetone alcohol 227.68
    N,N-dimethylaniline 71.66
    acrylonitrile 73.72
    aniline 86.51
    1,3-propanediol 202.5
    bromobenzene 63.72
    dibromomethane 142.66
    1,1,2,2-tetrachloroethane 290.6
    2-methyl-cyclohexyl acetate 93.86
    tetrabutyl urea 78.63
    diisobutyl methanol 47.14
    2-phenylethanol 98.74
    styrene 38.43
    dioctyl adipate 78.21
    dimethyl sulfate 109.08
    ethyl butyrate 75.94
    methyl lactate 89.55
    butyl lactate 115.86
    diethyl carbonate 42.49
    propanediol butyl ether 182.6
    triethyl orthoformate 62.98
    p-tert-butyltoluene 33.05
    methyl 4-tert-butylbenzoate 125.49
    morpholine 342.04
    tert-butylamine 144.27
    n-dodecanol 36.49
    dimethoxymethane 224.12
    ethylene carbonate 99.53
    cyrene 145.96
    2-ethoxyethyl acetate 134.07
    2-ethylhexyl acetate 89.57
    1,2,4-trichlorobenzene 96.43
    4-methylpyridine 143.06
    dibutyl ether 58.1
    2,6-dimethyl-4-heptanol 47.14
    DEF 169.87
    dimethyl isosorbide 234.61
    tetrachloroethylene 180.95
    eugenol 126.53
    triacetin 125.16
    span 80 155.27
    1,4-butanediol 92.09
    1,1-dichloroethane 121.12
    2-methyl-1-pentanol 104.95
    methyl formate 86.55
    2-methyl-1-butanol 106.56
    n-decane 7.8
    butyronitrile 75.8
    3,7-dimethyl-1-octanol 68.44
    1-chlorooctane 38.18
    1-chlorotetradecane 14.6
    n-nonane 7.27
    undecane 5.69
    tert-butylcyclohexane 10.94
    cyclooctane 9.27
    cyclopentanol 234.06
    tetrahydropyran 234.78
    tert-amyl methyl ether 110.79
    2,5,8-trioxanonane 217.61
    1-hexene 42.8
    2-isopropoxyethanol 166.34
    2,2,2-trifluoroethanol 51.21
    methyl butyrate 102.96

    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