Molybdenum disulfide

Overview IFRA Request a quote

  • Identifiers

    CAS number
    1317-33-5

    Molecular formula
    MoS2

    SMILES
    S=[Mo]=S

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Pungent 66.48%
    Odorless 61.4%
    Sulfurous 50.9%
    Garlic 45.26%
    Radish 40.21%
    Alliaceous 34.63%
    Onion 30.04%
    Cooked 19.04%
    Burnt 18.7%
    Sharp 18.3%

     

    Flavor
    Bitter 57.43%
    Pungent 53.22%
    Mustard 47.36%
    Odorless 39.19%
    Sulfur 36.27%
    Garlic 29.16%
    Horseradish 26.84%
    Formyl 24.53%
    Rotten 23.36%
    Vinegar 22.55%

     

  • Properties

    pKa est.
    -42.85 (strong acid)

    Molecular weight
    160.1 g/mol

    Melting point expt.

    • 2375 °C

    Boiling point

    • 450 °C, sublimes

    Flash point

    • -1.07 ˚C est.

    Solubility expt.

    • INSOL IN WATER OR DIL ACIDS
    • SOL IN HOT SULFURIC ACID, AQUA REGIA, NITRIC ACID

  • Synonyms

    • MOLYBDENUM DISULFIDE
    • Molybdenum(IV) sulfide
    • 1317-33-5
    • Molykote
    • Molysulfide
    • Motimol
    • Nichimoly C
    • Sumipowder PA
    • Molykote Z
    • Molybdenum sulfide (MoS2)
    • Molyke R
    • Moly Powder B
    • Moly Powder C
    • Moly Powder PA
    • Moly Powder PS
    • Mopol M
    • Mopol S
    • Natural molybdenite
    • Molybdenum bisulfide
    • M 5 (lubricant)
    • Solvest 390A
    • DM 1 (sulfide)
    • Molycolloid CF 626
    • LM 13 (lubricant)
    • MD 40 (lubricant)
    • Molykote Microsize Powder
    • DAG 206
    • DAG 325
    • LM 13
    • MD 40
    • ZC8B4P503V
    • C.I. 77770
    • CHEBI:30704
    • RefChem:926036
    • DTXCID601478026
    • 215-263-9
    • DTXSID5042162
    • Molybdenite
    • Molybdenum disulphide
    • 1309-56-4
    • Molybdenite (MoS2)
    • bis(sulfanylidene)molybdenum
    • MFCD00003470
    • MoS2
    • Pigment Black 34
    • T-Powder
    • 56780-54-2
    • 863767-83-3
    • Liqui-Moly LM 2
    • Liqui-Moly LM 11
    • Molybdenum ores, molybdenite
    • DAG-V 657
    • HSDB 1660
    • EINECS 215-172-4
    • EINECS 215-263-9
    • UNII-ZC8B4P503V
    • disulfidomolybdenum
    • starbld0007122
    • [MoS2]
    • SCHEMBL28991
    • Molybdenum(IV) sulfide, powder
    • orb1705872
    • MOLYBDENUM DISULFIDE [MI]
    • Molybdenum(IV) sulfide, 95.0%
    • MOLYBDENUM DISULFIDE [HSDB]
    • AKOS015903590
    • FM40856
    • Henderson molybdenite, NIST RM 8599
    • SY071644
    • Molybdenum disulfide, Crystal, 99.995%
    • NS00112647
    • Molybdenum(IV) sulfide, powder, <2 mum, 99%
    • Q424257
    • Molybdenite, naturally occurring mineral, grains, approximately 0.06-0.19in
    • Molybdenum(IV) sulfide, nanopowder, 90 nm diameter (APS), 99% trace metals basis
    • 1317-33-5

  • Applications

    Molybdenum disulfide (CAS 1317-33-5) is widely used as a solid lubricant and anti-wear additive in industrial lubricants, oils, greases, and metalworking fluids to reduce friction and wear; it is also incorporated as a coating or ink additive to provide low-friction, wear-resistant surfaces. In polymers and plastics, MoS2 is used as a reinforcing filler to improve mechanical performance and abrasion resistance in composites. In electronics, MoS2 is explored as a 2D material for emerging semiconductor devices, sensors, and lubricating layers in microdevices. Additionally, it functions as a catalyst or catalyst support in hydrodesulfurization and related petrochemical processes. Applications are subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 301.48
    methanol 316.83
    isopropanol 252.18
    water 10.18
    ethyl acetate 278.98
    n-propanol 227.96
    acetone 493.79
    n-butanol 234.56
    acetonitrile 231.11
    DMF 999.59
    toluene 220.2
    isobutanol 174.21
    1,4-dioxane 590.92
    methyl acetate 263.62
    THF 871.29
    2-butanone 313.03
    n-pentanol 177.77
    sec-butanol 207.74
    n-hexane 85.31
    ethylene glycol 142.99
    NMP 806.61
    cyclohexane 141.86
    DMSO 1023.5
    n-butyl acetate 210.81
    n-octanol 162.75
    chloroform 661.18
    n-propyl acetate 177.68
    acetic acid 327.12
    dichloromethane 555.8
    cyclohexanone 435.44
    propylene glycol 145.74
    isopropyl acetate 212.11
    DMAc 621.12
    2-ethoxyethanol 272.11
    isopentanol 185.93
    n-heptane 90.01
    ethyl formate 216.7
    1,2-dichloroethane 404.71
    n-hexanol 210.61
    2-methoxyethanol 515.58
    isobutyl acetate 132.95
    tetrachloromethane 231.19
    n-pentyl acetate 202.38
    transcutol 458.76
    n-heptanol 171.6
    ethylbenzene 121.68
    MIBK 218.11
    2-propoxyethanol 334.55
    tert-butanol 304.44
    MTBE 275.22
    2-butoxyethanol 267.85
    propionic acid 209.35
    o-xylene 164.61
    formic acid 153.29
    diethyl ether 322.76
    m-xylene 167.44
    p-xylene 160.71
    chlorobenzene 272.46
    dimethyl carbonate 218.05
    n-octane 53.16
    formamide 241.65
    cyclopentanone 580.35
    2-pentanone 318.19
    anisole 253.64
    cyclopentyl methyl ether 407.52
    gamma-butyrolactone 544.7
    1-methoxy-2-propanol 419.92
    pyridine 442.66
    3-pentanone 255.19
    furfural 583.64
    n-dodecane 43.62
    diethylene glycol 315.61
    diisopropyl ether 151.31
    tert-amyl alcohol 235.49
    acetylacetone 401.92
    n-hexadecane 47.99
    acetophenone 227.71
    methyl propionate 256.44
    isopentyl acetate 184.8
    trichloroethylene 599.35
    n-nonanol 149.78
    cyclohexanol 254.69
    benzyl alcohol 191.78
    2-ethylhexanol 146.68
    isooctanol 140.09
    dipropyl ether 207.0
    1,2-dichlorobenzene 265.89
    ethyl lactate 128.06
    propylene carbonate 326.62
    n-methylformamide 355.03
    2-pentanol 192.65
    n-pentane 105.85
    1-propoxy-2-propanol 268.33
    1-methoxy-2-propyl acetate 238.91
    2-(2-methoxypropoxy) propanol 207.36
    mesitylene 135.2
    ε-caprolactone 349.91
    p-cymene 108.18
    epichlorohydrin 545.57
    1,1,1-trichloroethane 416.94
    2-aminoethanol 187.17
    morpholine-4-carbaldehyde 661.74
    sulfolane 785.42
    2,2,4-trimethylpentane 58.25
    2-methyltetrahydrofuran 503.4
    n-hexyl acetate 223.08
    isooctane 51.84
    2-(2-butoxyethoxy)ethanol 268.97
    sec-butyl acetate 137.01
    tert-butyl acetate 253.98
    decalin 69.37
    glycerin 226.14
    diglyme 470.15
    acrylic acid 226.89
    isopropyl myristate 125.69
    n-butyric acid 271.79
    acetyl acetate 241.35
    di(2-ethylhexyl) phthalate 125.58
    ethyl propionate 169.44
    nitromethane 457.21
    1,2-diethoxyethane 240.03
    benzonitrile 222.26
    trioctyl phosphate 103.62
    1-bromopropane 268.72
    gamma-valerolactone 634.27
    n-decanol 121.12
    triethyl phosphate 124.27
    4-methyl-2-pentanol 130.78
    propionitrile 194.49
    vinylene carbonate 313.35
    1,1,2-trichlorotrifluoroethane 469.2
    DMS 189.17
    cumene 97.59
    2-octanol 143.06
    2-hexanone 209.26
    octyl acetate 156.87
    limonene 153.11
    1,2-dimethoxyethane 444.2
    ethyl orthosilicate 125.13
    tributyl phosphate 102.84
    diacetone alcohol 291.76
    N,N-dimethylaniline 218.01
    acrylonitrile 243.95
    aniline 235.92
    1,3-propanediol 255.44
    bromobenzene 293.65
    dibromomethane 414.91
    1,1,2,2-tetrachloroethane 523.26
    2-methyl-cyclohexyl acetate 162.95
    tetrabutyl urea 148.49
    diisobutyl methanol 115.97
    2-phenylethanol 203.21
    styrene 157.54
    dioctyl adipate 161.15
    dimethyl sulfate 381.25
    ethyl butyrate 177.26
    methyl lactate 201.9
    butyl lactate 164.32
    diethyl carbonate 135.28
    propanediol butyl ether 227.6
    triethyl orthoformate 154.53
    p-tert-butyltoluene 117.64
    methyl 4-tert-butylbenzoate 249.96
    morpholine 581.94
    tert-butylamine 215.07
    n-dodecanol 102.38
    dimethoxymethane 587.67
    ethylene carbonate 249.76
    cyrene 254.6
    2-ethoxyethyl acetate 234.57
    2-ethylhexyl acetate 171.33
    1,2,4-trichlorobenzene 310.53
    4-methylpyridine 390.89
    dibutyl ether 159.26
    2,6-dimethyl-4-heptanol 115.97
    DEF 391.0
    dimethyl isosorbide 365.24
    tetrachloroethylene 401.71
    eugenol 244.32
    triacetin 216.67
    span 80 240.15
    1,4-butanediol 126.41
    1,1-dichloroethane 375.17
    2-methyl-1-pentanol 149.35
    methyl formate 288.95
    2-methyl-1-butanol 176.34
    n-decane 62.66
    butyronitrile 209.55
    3,7-dimethyl-1-octanol 130.7
    1-chlorooctane 134.13
    1-chlorotetradecane 76.44
    n-nonane 62.18
    undecane 50.58
    tert-butylcyclohexane 68.07
    cyclooctane 71.19
    cyclopentanol 303.73
    tetrahydropyran 467.72
    tert-amyl methyl ether 239.44
    2,5,8-trioxanonane 343.9
    1-hexene 143.68
    2-isopropoxyethanol 204.42
    2,2,2-trifluoroethanol 177.65
    methyl butyrate 209.87

    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