Sodium sulfide, hydrated, with not less than 30% water

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  • Identifiers

    CAS number
    1313-82-2

    Molecular formula
    HNa2S+

    SMILES
    [Na+].[Na+].[SH-]

    Safety labels

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

  • Properties

    pKa est.
    -30.84 (strong acid)

    Molecular weight
    79.06 g/mol

    Flash point

    • -149.66 ˚C est.

  • Synonyms

    • Disodium sulphide
    • Disodium sulfide (Na2S)
    • SODIUM SULFIDE, (HYDRATED, WITH >= 30% WATER)
    • SODIUM SULFIDE, [HYDRATED, WITH >= 30% WATER]
    • RefChem:887903
    • Sodium sulfide, hydrated, with not less than 30% water
    • SODIUM SULPHIDE, HYDRATED, WITH NOT LESS THAN 30% WATER
    • 1313-82-2
    • sodium sulfide
    • Sodium sulfide (Na2S)
    • Sodium sulfide (VAN)
    • Sodium Sulfide Hydrate (Technical Grade)
    • Disodium Sulfide Hydrate; Monosulfide Hydrate
    • Sodum sulfuret
    • Na2-S
    • SCHEMBL29349529
    • Sodium sulfide, 95%, anhydrous
    • NSC41874
    • UN1385
    • UN1849
    • Sodium sulfide (Na2S) (8CI,9CI)
    • AKOS037503705
    • Sodium sulfide hydrate, >=60%, scales
    • Sodium sulfide, hydrated with at least 30% water
    • Sodium sulfide, hydrated with at least 30% water [UN1849] [Corrosive]
    • Sodium sulfide, anhydrous or sodium sulfide with <30% water of crystallization
    • Sodium sulfide, anhydrous or sodium sulfide with <30% water of crystallization [UN1385] [Spontaneously combustible]
    • 1313-82-2

  • Applications

    Sodium sulfide, hydrated, with not less than 30% water (CAS 1313-82-2) is used as a sulfide source and reducing agent in a range of industrial applications: in the kraft pulp process to delignify wood, in leather processing for dehairing, in mining and mineral processing for sulfide precipitation of metals and to aid ore flotation, as an intermediate/reagent in chemical synthesis for sulfur-containing compounds, and in metal finishing for surface pretreatment to form protective sulfide layers and improve coating adhesion.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 56.92
    methanol 63.84
    isopropanol 34.68
    water 1.6
    ethyl acetate 28.88
    n-propanol 38.59
    acetone 55.35
    n-butanol 33.09
    acetonitrile 36.08
    DMF 91.91
    toluene 13.28
    isobutanol 25.49
    1,4-dioxane 59.51
    methyl acetate 33.44
    THF 72.77
    2-butanone 37.65
    n-pentanol 26.16
    sec-butanol 28.63
    n-hexane 5.58
    ethylene glycol 29.15
    NMP 86.88
    cyclohexane 6.07
    DMSO 92.22
    n-butyl acetate 27.6
    n-octanol 20.95
    chloroform 46.7
    n-propyl acetate 22.01
    acetic acid 58.94
    dichloromethane 37.28
    cyclohexanone 51.93
    propylene glycol 24.28
    isopropyl acetate 17.51
    DMAc 53.93
    2-ethoxyethanol 34.74
    isopentanol 24.72
    n-heptane 6.3
    ethyl formate 21.19
    1,2-dichloroethane 28.91
    n-hexanol 34.01
    2-methoxyethanol 58.55
    isobutyl acetate 14.86
    tetrachloromethane 11.49
    n-pentyl acetate 20.02
    transcutol 99.52
    n-heptanol 20.89
    ethylbenzene 7.96
    MIBK 20.41
    2-propoxyethanol 48.13
    tert-butanol 35.72
    MTBE 24.78
    2-butoxyethanol 31.56
    propionic acid 41.12
    o-xylene 10.69
    formic acid 26.74
    diethyl ether 30.71
    m-xylene 10.74
    p-xylene 10.52
    chlorobenzene 20.62
    dimethyl carbonate 16.66
    n-octane 2.77
    formamide 33.53
    cyclopentanone 72.74
    2-pentanone 32.79
    anisole 20.52
    cyclopentyl methyl ether 35.7
    gamma-butyrolactone 71.55
    1-methoxy-2-propanol 44.82
    pyridine 40.32
    3-pentanone 24.93
    furfural 57.27
    n-dodecane 2.69
    diethylene glycol 45.42
    diisopropyl ether 10.85
    tert-amyl alcohol 28.92
    acetylacetone 32.82
    n-hexadecane 2.88
    acetophenone 20.99
    methyl propionate 26.94
    isopentyl acetate 23.16
    trichloroethylene 49.5
    n-nonanol 17.32
    cyclohexanol 28.05
    benzyl alcohol 18.74
    2-ethylhexanol 20.4
    isooctanol 15.81
    dipropyl ether 21.31
    1,2-dichlorobenzene 20.33
    ethyl lactate 14.17
    propylene carbonate 37.5
    n-methylformamide 42.88
    2-pentanol 23.71
    n-pentane 6.2
    1-propoxy-2-propanol 35.21
    1-methoxy-2-propyl acetate 26.89
    2-(2-methoxypropoxy) propanol 27.93
    mesitylene 7.99
    ε-caprolactone 42.16
    p-cymene 8.99
    epichlorohydrin 49.45
    1,1,1-trichloroethane 26.64
    2-aminoethanol 36.44
    morpholine-4-carbaldehyde 69.42
    sulfolane 78.25
    2,2,4-trimethylpentane 3.3
    2-methyltetrahydrofuran 49.55
    n-hexyl acetate 27.02
    isooctane 2.77
    2-(2-butoxyethoxy)ethanol 39.33
    sec-butyl acetate 13.91
    tert-butyl acetate 21.12
    decalin 3.78
    glycerin 35.01
    diglyme 61.21
    acrylic acid 40.87
    isopropyl myristate 12.09
    n-butyric acid 37.01
    acetyl acetate 20.43
    di(2-ethylhexyl) phthalate 12.4
    ethyl propionate 17.87
    nitromethane 67.89
    1,2-diethoxyethane 32.41
    benzonitrile 24.22
    trioctyl phosphate 10.71
    1-bromopropane 19.87
    gamma-valerolactone 69.05
    n-decanol 13.75
    triethyl phosphate 11.5
    4-methyl-2-pentanol 14.47
    propionitrile 26.66
    vinylene carbonate 33.56
    1,1,2-trichlorotrifluoroethane 41.88
    DMS 20.9
    cumene 6.94
    2-octanol 14.85
    2-hexanone 25.27
    octyl acetate 15.75
    limonene 14.2
    1,2-dimethoxyethane 43.46
    ethyl orthosilicate 11.45
    tributyl phosphate 12.04
    diacetone alcohol 31.41
    N,N-dimethylaniline 15.93
    acrylonitrile 34.22
    aniline 21.06
    1,3-propanediol 39.84
    bromobenzene 18.5
    dibromomethane 28.29
    1,1,2,2-tetrachloroethane 39.59
    2-methyl-cyclohexyl acetate 16.61
    tetrabutyl urea 16.89
    diisobutyl methanol 12.83
    2-phenylethanol 22.14
    styrene 10.59
    dioctyl adipate 15.87
    dimethyl sulfate 25.94
    ethyl butyrate 18.61
    methyl lactate 21.08
    butyl lactate 18.17
    diethyl carbonate 13.06
    propanediol butyl ether 31.78
    triethyl orthoformate 14.43
    p-tert-butyltoluene 9.15
    methyl 4-tert-butylbenzoate 22.54
    morpholine 60.35
    tert-butylamine 24.55
    n-dodecanol 11.07
    dimethoxymethane 41.11
    ethylene carbonate 26.36
    cyrene 26.74
    2-ethoxyethyl acetate 26.6
    2-ethylhexyl acetate 19.86
    1,2,4-trichlorobenzene 24.49
    4-methylpyridine 34.23
    dibutyl ether 18.04
    2,6-dimethyl-4-heptanol 12.83
    DEF 37.87
    dimethyl isosorbide 39.92
    tetrachloroethylene 29.97
    eugenol 25.19
    triacetin 25.2
    span 80 26.63
    1,4-butanediol 19.23
    1,1-dichloroethane 26.99
    2-methyl-1-pentanol 21.5
    methyl formate 31.71
    2-methyl-1-butanol 23.95
    n-decane 3.96
    butyronitrile 25.06
    3,7-dimethyl-1-octanol 17.17
    1-chlorooctane 12.41
    1-chlorotetradecane 5.84
    n-nonane 3.93
    undecane 3.17
    tert-butylcyclohexane 4.17
    cyclooctane 2.71
    cyclopentanol 36.0
    tetrahydropyran 46.31
    tert-amyl methyl ether 21.35
    2,5,8-trioxanonane 46.49
    1-hexene 14.51
    2-isopropoxyethanol 25.57
    2,2,2-trifluoroethanol 23.46
    methyl butyrate 24.08

    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