Manganese

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  • Identifiers

    CAS number
    7439-96-5

    Molecular formula
    Mn

    SMILES
    [Mn]

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

    Environmental Hazard
    Environmental

  • Odor profile

  • Properties

    pKa est.
    -38.7 (strong acid)

    Molecular weight
    54.93804 g/mol

    Melting point expt.

    • 2271 °F (NIOSH, 2024)
    • 2271 °F
    • 1246 °C
    • Alpha is stable below approx 710 °C; beta is stable between 710-1079 °C; gamma is stable between 1079-1143 °C; delta is stable between 1143 °C and its melting point.
    • 1244 °C

    Boiling point

    • 3564 °F at 760 mmHg (NIOSH, 2024)
    • 2061 °C
    • 1962 °C
    • 3564 °F

    Flash point

    • -47.71 ˚C est.

    Solubility expt.

    • Insoluble (NIOSH, 2024)
    • Readily dissolves in dilute mineral acids
    • Solubility in water: none
    • Insoluble

  • Synonyms

    • MANGANESE
    • 7439-96-5
    • Cutaval
    • Manganese-55
    • MN
    • 42Z2K6ZL8P
    • DTXSID2024169
    • MANGANUM METALLICUM
    • CHEBI:18291
    • CHEBI:35154
    • Dietary Manganese
    • manganese(II) cation
    • RefChem:41636
    • DTXCID004169
    • MANGANESE METAL: COLLOIDAL MANGANESE
    • 231-105-1
    • 688-447-3
    • Manganese(2+) ion
    • Colloidal manganese
    • Mangan
    • manganide
    • Manganese element
    • manganese atom
    • Manganese metal
    • Manganese powder
    • Manganese, ion (Mn1-)
    • manganese(4+)
    • MFCD00011111
    • Manganese(1-)
    • MANGANESE (II) ION
    • Magnacat
    • Tronamang
    • Mangan [Polish]
    • Manganese(IV)
    • Manganese, elemental
    • 7439-96-5(powder)
    • Manganese powder, -325 mesh
    • manganeso
    • Manganese fume
    • Teprosyn M
    • Mangan nitridovany
    • Mangan nitridovany [Czech]
    • Manganese(4 )
    • Manganese(7+)
    • CCRIS 1579
    • HSDB 550
    • Manganese ion(4 )
    • EINECS 231-105-1
    • Manganese - Mn @ 1000 microg/g in Hydrocarbon Oil
    • Manganese - Mn @ 5000 microg/g in Hydrocarbon Oil
    • Manganese Standard: Mn @ 10 microg/mL in 2% HNO3
    • Manganese, ion (Mn4 )
    • Manganese Standard: Mn @ 1000 microg/mL in 5% HNO3
    • Manganese Standard: Mn @ 10000 microg/mL in 5% HNO3
    • MNE 06PB
    • manganum
    • Manganese AA Standard: Mn @ 1000 microg/mL in 5% HNO3
    • UNII-42Z2K6ZL8P
    • Manganese Internal Standard: Mn @ 0.05 wt% in Mineral Oil
    • Manganese, ion (Mn(7+))
    • Manganese chips
    • Atomic Manganese
    • Element-Mn
    • Element:Mn
    • Element Manganese
    • Element:Manganese
    • manganese(0)
    • manganese (IV)
    • manganide(-I)
    • 55Mn isotope
    • Manganese in water
    • Mn (element)
    • manganese (0)
    • manganide(1-)
    • Isotope:55Mn
    • Manganese (atomic)
    • MN3
    • Manganese (element)
    • 55Mn (isotope)
    • manganese(4+) ion
    • Manganese, 99%
    • Mn Standard Solution
    • manganese(IV) cation
    • Manganese-55 isotope
    • Isotope:Manganese-55
    • MANGANESE [MI]
    • Mn(IV)
    • MANGANESE [HSDB]
    • MANGANESE [VANDF]
    • Manganese powder 50 mesh
    • 25Mn
    • MANGANESE [MART.]
    • EC 231-105-1
    • Manganese pieces, irregular
    • MANGANESE [WHO-DD]
    • Manganese powder 10 micron
    • Manganese powder 100 mesh
    • SCHEMBL2640
    • Manganese, powder 325 mesh
    • Mn(-)
    • Mn(0)
    • SCHEMBL1270300
    • Manganese powder , -325 mesh
    • SCHEMBL29357693
    • SCHEMBL29475356
    • SCHEMBL29657732
    • SCHEMBL29773506
    • SCHEMBL30274522
    • CHEBI:25158
    • CHEBI:33011
    • HSDB 6945
    • Mn(4+)
    • DTXSID801314870
    • MANGANUM METALLICUM [HPUS]
    • Manganese powder, APS <10 micron
    • Manganese powder, -140+325 mesh
    • AKOS015833390
    • Manganese powder, 99.9% (metal basis)
    • Mn4
    • N450
    • Q731
    • Manganese 1000 ppm in solution 10%HNO3
    • AA standard MANGANESE 1M HCI 1000 ppm
    • Manganese, chips, thickness <2.0 mm, 99%
    • NS00099572
    • AA standard MANGANESE 1M HCI 10000 ppm
    • C00034
    • 7439-96-5

  • Applications

    Chemical name: Manganese; CAS number: 7439-96-5. Manganese is primarily used as an alloying element in steel and other metals to improve hardness, strength and wear resistance, and as a deoxidizer and desulfurizer in steelmaking. It is also a source for manganese compounds used in fertilizers (agriculture) and as pigments and colorants for ceramics and glass. In industry, manganese oxides and salts are employed as catalysts or catalyst supports in various chemical processes and environmental applications. It is also the precursor to manganese dioxide, a material widely used as a depolarizer in batteries.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 160.65
    methanol 181.68
    isopropanol 112.08
    water 3.19
    ethyl acetate 112.18
    n-propanol 115.5
    acetone 210.48
    n-butanol 106.6
    acetonitrile 132.4
    DMF 363.21
    toluene 70.14
    isobutanol 80.09
    1,4-dioxane 251.91
    methyl acetate 125.54
    THF 270.44
    2-butanone 139.51
    n-pentanol 82.24
    sec-butanol 98.21
    n-hexane 27.19
    ethylene glycol 71.38
    NMP 318.39
    cyclohexane 37.94
    DMSO 308.73
    n-butyl acetate 98.84
    n-octanol 74.37
    chloroform 175.41
    n-propyl acetate 81.22
    acetic acid 166.37
    dichloromethane 153.74
    cyclohexanone 188.3
    propylene glycol 59.0
    isopropyl acetate 70.96
    DMAc 227.67
    2-ethoxyethanol 123.15
    isopentanol 85.26
    n-heptane 29.03
    ethyl formate 79.11
    1,2-dichloroethane 116.8
    n-hexanol 104.41
    2-methoxyethanol 204.8
    isobutyl acetate 55.13
    tetrachloromethane 51.79
    n-pentyl acetate 75.21
    transcutol 390.74
    n-heptanol 67.12
    ethylbenzene 40.11
    MIBK 81.94
    2-propoxyethanol 161.88
    tert-butanol 127.65
    MTBE 111.24
    2-butoxyethanol 108.79
    propionic acid 111.26
    o-xylene 55.46
    formic acid 64.9
    diethyl ether 131.6
    m-xylene 53.33
    p-xylene 50.98
    chlorobenzene 85.06
    dimethyl carbonate 65.56
    n-octane 14.91
    formamide 94.47
    cyclopentanone 235.8
    2-pentanone 127.69
    anisole 92.74
    cyclopentyl methyl ether 141.57
    gamma-butyrolactone 230.98
    1-methoxy-2-propanol 153.33
    pyridine 151.98
    3-pentanone 99.72
    furfural 199.52
    n-dodecane 13.61
    diethylene glycol 153.21
    diisopropyl ether 51.06
    tert-amyl alcohol 107.58
    acetylacetone 148.56
    n-hexadecane 14.98
    acetophenone 87.48
    methyl propionate 98.84
    isopentyl acetate 84.82
    trichloroethylene 197.85
    n-nonanol 63.66
    cyclohexanol 102.41
    benzyl alcohol 71.57
    2-ethylhexanol 70.08
    isooctanol 52.68
    dipropyl ether 80.35
    1,2-dichlorobenzene 83.76
    ethyl lactate 48.91
    propylene carbonate 123.91
    n-methylformamide 135.37
    2-pentanol 84.55
    n-pentane 32.8
    1-propoxy-2-propanol 120.31
    1-methoxy-2-propyl acetate 98.2
    2-(2-methoxypropoxy) propanol 109.48
    mesitylene 40.32
    ε-caprolactone 152.55
    p-cymene 37.35
    epichlorohydrin 180.16
    1,1,1-trichloroethane 118.37
    2-aminoethanol 88.33
    morpholine-4-carbaldehyde 274.87
    sulfolane 257.34
    2,2,4-trimethylpentane 17.67
    2-methyltetrahydrofuran 195.18
    n-hexyl acetate 100.6
    isooctane 15.07
    2-(2-butoxyethoxy)ethanol 150.55
    sec-butyl acetate 56.69
    tert-butyl acetate 87.49
    decalin 21.16
    glycerin 94.89
    diglyme 251.01
    acrylic acid 112.38
    isopropyl myristate 50.01
    n-butyric acid 113.93
    acetyl acetate 84.44
    di(2-ethylhexyl) phthalate 45.28
    ethyl propionate 68.82
    nitromethane 223.15
    1,2-diethoxyethane 134.48
    benzonitrile 90.24
    trioctyl phosphate 38.33
    1-bromopropane 82.01
    gamma-valerolactone 246.72
    n-decanol 50.61
    triethyl phosphate 43.26
    4-methyl-2-pentanol 53.42
    propionitrile 91.96
    vinylene carbonate 110.95
    1,1,2-trichlorotrifluoroethane 145.64
    DMS 84.31
    cumene 31.53
    2-octanol 52.57
    2-hexanone 92.21
    octyl acetate 61.41
    limonene 58.34
    1,2-dimethoxyethane 188.9
    ethyl orthosilicate 43.6
    tributyl phosphate 44.81
    diacetone alcohol 112.9
    N,N-dimethylaniline 71.55
    acrylonitrile 116.78
    aniline 79.56
    1,3-propanediol 115.05
    bromobenzene 86.03
    dibromomethane 115.9
    1,1,2,2-tetrachloroethane 150.12
    2-methyl-cyclohexyl acetate 61.04
    tetrabutyl urea 64.18
    diisobutyl methanol 47.85
    2-phenylethanol 83.52
    styrene 51.23
    dioctyl adipate 63.8
    dimethyl sulfate 109.51
    ethyl butyrate 69.31
    methyl lactate 71.34
    butyl lactate 61.47
    diethyl carbonate 51.25
    propanediol butyl ether 106.74
    triethyl orthoformate 55.78
    p-tert-butyltoluene 38.2
    methyl 4-tert-butylbenzoate 86.33
    morpholine 233.86
    tert-butylamine 88.83
    n-dodecanol 42.64
    dimethoxymethane 171.86
    ethylene carbonate 88.7
    cyrene 98.4
    2-ethoxyethyl acetate 105.98
    2-ethylhexyl acetate 72.84
    1,2,4-trichlorobenzene 97.42
    4-methylpyridine 141.06
    dibutyl ether 79.04
    2,6-dimethyl-4-heptanol 47.85
    DEF 157.18
    dimethyl isosorbide 155.33
    tetrachloroethylene 113.58
    eugenol 91.57
    triacetin 100.07
    span 80 102.63
    1,4-butanediol 57.99
    1,1-dichloroethane 112.42
    2-methyl-1-pentanol 70.93
    methyl formate 106.24
    2-methyl-1-butanol 81.85
    n-decane 19.15
    butyronitrile 87.68
    3,7-dimethyl-1-octanol 63.1
    1-chlorooctane 53.13
    1-chlorotetradecane 27.05
    n-nonane 19.83
    undecane 15.56
    tert-butylcyclohexane 21.25
    cyclooctane 17.03
    cyclopentanol 120.45
    tetrahydropyran 186.51
    tert-amyl methyl ether 92.64
    2,5,8-trioxanonane 184.83
    1-hexene 59.45
    2-isopropoxyethanol 90.75
    2,2,2-trifluoroethanol 64.56
    methyl butyrate 89.92

    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