Lignosulfonic acid, sodium salt

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  • Identifiers

    CAS number
    8061-51-6

    Molecular formula
    C20H24Na2O10S2

    SMILES
    COC1=CC=CC(=C1O)CC(CS(=O)(=O)[O-])OC2=C(C=C(C=C2)CCCS(=O)(=O)[O-])OC.[Na+].[Na+]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 72.92%
    Savory 28.4%
    Cooked 20.49%
    Meaty 19.1%
    Milky 18.61%
    Roasted 17.63%
    Cooling 16.22%
    Fresh 13.18%
    Clean 12.83%
    Burnt 12.78%

     

    Flavor
    Bitter 82.24%
    Odorless 34.91%
    Bland 32.23%
    Mild 20.09%
    Sweet-like 19.77%
    Cedarleaf 19.31%
    Nitrile 19.14%
    Heather 18.67%
    Parsley 18.63%
    Broom 18.49%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    4.58 (weak acid)

    Molecular weight
    534.5 g/mol

    Flash point

    • 279.65 ˚C est.

    Solubility expt.

    • Soluble (NTP, 1992)
    • SEE LIGNIN SULFONATE. MOLECULAR WEIGHTS RANGE FROM 1000-20,000; NO PRONOUNCED ODOR; NONHYGROSCOPIC; NO DEFINITE MP; DECOMPOSE ABOVE 200 °C; SPECIFIC GRAVITY ABOUT 1.5; FORMS COLLOIDAL SOLN OR DISPERSIONS IN WATER; LIGHT TAN TO DARK-BROWN POWDER; PRACTICALLY INSOL IN ALL ORG SOLVENTS /LIGNIN SULFONATE/

  • Synonyms

    • Sodium lignosulfonate
    • Lignosulfonic acid, sodium salt
    • 8061-51-6
    • Lignosulfonic acid sodium salt
    • SCHEMBL29087325
    • FL41055
    • 8061-51-6

  • Applications

    The sodium salt of lignosulfonic acid is used in multiple practical applications, including: as a dispersant and water-reducing plasticizer in cement and concrete admixtures to improve workability and reduce water demand; as a binder for foundry sand molds (green sand and no-bake sands) to enhance strength and reduce binder consumption; as a pigment/ink dispersant and stabilizer in coatings, paints, and inks; as a deflocculant and binder in ceramic and clay processing; as a dust suppression and soil stabilization agent in mining, road maintenance, and other unpaved areas; and it is sometimes evaluated as a soil conditioner or carrier in agricultural formulations, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 12.01
    methanol 29.94
    isopropanol 4.38
    water 0.13
    ethyl acetate 4.6
    n-propanol 7.37
    acetone 63.14
    n-butanol 3.84
    acetonitrile 11.03
    DMF 176.2
    toluene 0.57
    isobutanol 2.71
    1,4-dioxane 18.9
    methyl acetate 9.29
    THF 58.36
    2-butanone 20.51
    n-pentanol 2.32
    sec-butanol 3.81
    n-hexane 0.03
    ethylene glycol 8.25
    NMP 120.29
    cyclohexane 0.09
    DMSO 370.5
    n-butyl acetate 2.18
    n-octanol 2.12
    chloroform 5.09
    n-propyl acetate 3.47
    acetic acid 29.97
    dichloromethane 8.53
    cyclohexanone 24.73
    propylene glycol 10.18
    isopropyl acetate 2.59
    DMAc 158.21
    2-ethoxyethanol 26.6
    isopentanol 1.99
    n-heptane 0.06
    ethyl formate 9.79
    1,2-dichloroethane 7.4
    n-hexanol 1.14
    2-methoxyethanol 65.23
    isobutyl acetate 1.18
    tetrachloromethane 0.3
    n-pentyl acetate 2.9
    transcutol 31.37
    n-heptanol 1.51
    ethylbenzene 0.28
    MIBK 3.5
    2-propoxyethanol 16.37
    tert-butanol 3.24
    MTBE 1.31
    2-butoxyethanol 8.46
    propionic acid 9.81
    o-xylene 0.46
    formic acid 33.21
    diethyl ether 2.8
    m-xylene 0.29
    p-xylene 0.4
    chlorobenzene 0.96
    dimethyl carbonate 10.88
    n-octane 0.06
    formamide 62.87
    cyclopentanone 53.39
    2-pentanone 10.31
    anisole 2.57
    cyclopentyl methyl ether 3.65
    gamma-butyrolactone 47.6
    1-methoxy-2-propanol 29.95
    pyridine 11.67
    3-pentanone 7.71
    furfural 32.74
    n-dodecane 0.06
    diethylene glycol 20.35
    diisopropyl ether 0.31
    tert-amyl alcohol 2.81
    acetylacetone 23.6
    n-hexadecane 0.07
    acetophenone 5.07
    methyl propionate 9.39
    isopentyl acetate 1.74
    trichloroethylene 12.6
    n-nonanol 2.2
    cyclohexanol 2.52
    benzyl alcohol 3.91
    2-ethylhexanol 0.69
    isooctanol 1.01
    dipropyl ether 1.67
    1,2-dichlorobenzene 1.07
    ethyl lactate 5.64
    propylene carbonate 10.64
    n-methylformamide 54.94
    2-pentanol 1.31
    n-pentane 0.04
    1-propoxy-2-propanol 9.33
    1-methoxy-2-propyl acetate 6.39
    2-(2-methoxypropoxy) propanol 12.93
    mesitylene 0.19
    ε-caprolactone 14.12
    p-cymene 0.29
    epichlorohydrin 35.66
    1,1,1-trichloroethane 1.55
    2-aminoethanol 13.28
    morpholine-4-carbaldehyde 71.01
    sulfolane 103.96
    2,2,4-trimethylpentane 0.02
    2-methyltetrahydrofuran 8.41
    n-hexyl acetate 3.62
    isooctane 0.01
    2-(2-butoxyethoxy)ethanol 14.94
    sec-butyl acetate 1.33
    tert-butyl acetate 2.75
    decalin 0.03
    glycerin 27.33
    diglyme 29.75
    acrylic acid 13.73
    isopropyl myristate 1.43
    n-butyric acid 7.7
    acetyl acetate 4.54
    di(2-ethylhexyl) phthalate 3.05
    ethyl propionate 3.17
    nitromethane 82.86
    1,2-diethoxyethane 6.64
    benzonitrile 3.39
    trioctyl phosphate 1.9
    1-bromopropane 1.51
    gamma-valerolactone 74.66
    n-decanol 1.61
    triethyl phosphate 2.09
    4-methyl-2-pentanol 0.57
    propionitrile 5.69
    vinylene carbonate 10.87
    1,1,2-trichlorotrifluoroethane 31.94
    DMS 5.07
    cumene 0.19
    2-octanol 0.99
    2-hexanone 5.36
    octyl acetate 2.41
    limonene 0.5
    1,2-dimethoxyethane 39.07
    ethyl orthosilicate 1.75
    tributyl phosphate 2.21
    diacetone alcohol 9.42
    N,N-dimethylaniline 1.89
    acrylonitrile 11.71
    aniline 2.25
    1,3-propanediol 14.68
    bromobenzene 0.62
    dibromomethane 3.47
    1,1,2,2-tetrachloroethane 9.55
    2-methyl-cyclohexyl acetate 2.41
    tetrabutyl urea 5.65
    diisobutyl methanol 0.5
    2-phenylethanol 2.73
    styrene 0.41
    dioctyl adipate 4.02
    dimethyl sulfate 26.28
    ethyl butyrate 2.77
    methyl lactate 16.29
    butyl lactate 4.85
    diethyl carbonate 2.15
    propanediol butyl ether 9.91
    triethyl orthoformate 2.62
    p-tert-butyltoluene 0.26
    methyl 4-tert-butylbenzoate 6.53
    morpholine 26.42
    tert-butylamine 0.75
    n-dodecanol 1.14
    dimethoxymethane 54.43
    ethylene carbonate 7.89
    cyrene 19.46
    2-ethoxyethyl acetate 6.63
    2-ethylhexyl acetate 1.21
    1,2,4-trichlorobenzene 1.76
    4-methylpyridine 5.96
    dibutyl ether 1.86
    2,6-dimethyl-4-heptanol 0.5
    DEF 18.66
    dimethyl isosorbide 18.31
    tetrachloroethylene 4.59
    eugenol 8.18
    triacetin 7.8
    span 80 7.97
    1,4-butanediol 5.69
    1,1-dichloroethane 2.53
    2-methyl-1-pentanol 1.37
    methyl formate 41.21
    2-methyl-1-butanol 2.31
    n-decane 0.11
    butyronitrile 3.97
    3,7-dimethyl-1-octanol 1.28
    1-chlorooctane 0.71
    1-chlorotetradecane 0.3
    n-nonane 0.09
    undecane 0.08
    tert-butylcyclohexane 0.02
    cyclooctane 0.03
    cyclopentanol 5.58
    tetrahydropyran 7.1
    tert-amyl methyl ether 1.47
    2,5,8-trioxanonane 25.56
    1-hexene 0.19
    2-isopropoxyethanol 9.38
    2,2,2-trifluoroethanol 12.33
    methyl butyrate 5.36

    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