Potassium Permanganate

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  • Identifiers

    CAS number
    7722-64-7

    Molecular formula
    KMnO4

    SMILES
    [O-][Mn](=O)(=O)=O.[K+]

    Safety labels

    Oxidizer
    Oxidizer

    Irritant
    Irritant

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 89.5%
    Sour 24.82%
    Sharp 18.48%
    Burnt 14.82%
    Clean 12.85%
    Pungent 12.28%
    Ethereal 10.14%
    Caramellic 9.95%
    Bitter 9.04%
    Winey 9.02%

     

    Flavor
    Odorless 54.6%
    Bitter 35.1%
    Sour 23.36%
    Vinegar 21.6%
    Formyl 21.28%
    Rotten 19.42%
    Urine 18.8%
    Mousy 18.74%
    Soy 18.26%
    Sharp 17.96%

     

  • Properties

    pKa est.
    -12.57 (strong acid)

    Molecular weight
    158.034 g/mol

    Melting point expt.

    • greater than 464 °F (USCG, 1999)
    • Decomposes

    Flash point

    • 13.39 ˚C est.

    Solubility expt.

    • Soluble in many organic solvents; also by concentrated acids with the liberation of oxygen.
    • Soluble in acetone and methanol
    • Soluble in acetic acid, trifluoroacetic acid, acetic anhydride, pyridine, benzonitrile, sulfolane.
    • In water, 6.40X10+4 mg/l @ 20 °C
    • 25 g/100 @ 65 °C water
    • Solubility in water, g/100ml at 20 °C: 6.4 (moderate)

  • Synonyms

    • POTASSIUM PERMANGANATE
    • 7722-64-7
    • Chameleon mineral
    • Condy's crystals
    • Argucide
    • Cairox
    • Walko Tablets
    • Insta-perm
    • Permanganate of potash
    • Algae-K
    • Solo San Soo
    • Pure Light E 2
    • Potassium permanganate (KMnO4)
    • Caswell No. 699
    • Diversey Diversol CXU
    • Kaliumpermanganat
    • Permanganato potasico
    • Permanganic acid (HMnO4), potassium salt
    • CCRIS 5561
    • Permanganate de potassium
    • HSDB 1218
    • Diversey Diversol CX with Arodyne
    • Manganese potassium oxide (KMnO4)
    • Kali permanganicum
    • Potassio (permanganato di)
    • Potassium (permanganate de)
    • EINECS 231-760-3
    • UNII-00OT1QX5U4
    • MFCD00011364
    • EPA Pesticide Chemical Code 068501
    • NSC 146182
    • 00OT1QX5U4
    • potassium;permanganate
    • CI 77755
    • AI3-52835
    • C.I. 77755
    • Icc 237 Disinfectant, Sanitizer, Destainer, and Deodorizer
    • DTXSID2034839
    • EC 231-760-3
    • Potassium permanganate [USP:JAN]
    • NSC-146182
    • Permanganic acid (HMnO4), potassium salt (1:1)
    • Hilco #88
    • Potassium permanganate (USP:JAN)
    • Kaliumpermanganat [German]
    • POTASSIUM PERMANGANATE (MART.)
    • POTASSIUM PERMANGANATE [MART.]
    • Potassium permanganate [JAN]
    • Permanganato potasico [Spanish]
    • POTASSIUM PERMANGANATE (EP MONOGRAPH)
    • POTASSIUM PERMANGANATE [EP MONOGRAPH]
    • KMnO4
    • POTASSIUM PERMANGANATE (USP MONOGRAPH)
    • POTASSIUM PERMANGANATE [USP MONOGRAPH]
    • Permanganate, Potassium
    • Permanganate de potassium [French]
    • UN1490
    • Potassio (permanganato di) [Italian]
    • Potassium (permanganate de) [French]
    • Chlorisol
    • potasiumpermanganate
    • potassiumpermanganate
    • Caswell Number 699
    • Potassium permanganate (TN)
    • Potassium permanganate, 97%
    • DTXCID0014839
    • KALI PERMANGANICUM [HPUS]
    • CHEBI:231501
    • POTASSIUM PERMANGANATE [MI]
    • Potassium permanganate, ACS reagent
    • Potassium permanganate (JP17/USP)
    • POTASSIUM PERMANGANATE [HSDB]
    • POTASSIUM PERMANGANATE [VANDF]
    • Potassium permanganate, LR, >=99%
    • AKOS015833392
    • DB13831
    • POTASSIUM PERMANGANATE [WHO-DD]
    • Potassium permanganate solution, 1.25N
    • Potassium permanganate, p.a., 99.0%
    • NS00067941
    • P1742
    • D02053
    • Potassium permanganate [UN1490] [Oxidizer]
    • Potassium permanganate, ACS reagent, >=99.0%
    • Potassium permanganate, BioUltra, >=99.0% (RT)
    • Q190865
    • Potassium permanganate, SAJ first grade, >=99.3%
    • Potassium permanganate, tested according to Ph.Eur.
    • Potassium permanganate, JIS special grade, >=99.3%
    • Potassium permanganate, <=150 mum particle size, 97%
    • Potassium permanganate, meets USP testing specifications
    • Potassium permanganate, ACS reagent, >=99.0%, low in mercury
    • Potassium permanganate, low in mercury (max. 0,005 ppm Hg)
    • Potassium permanganate, p.a., ACS reagent, reag. ISO, 99.0%
    • Potassium permanganate, purum p.a., >=99.0% (RT), fine crystals
    • Potassium permanganate, suitable for determination of nitroxide, >=99.3%
    • Potassium permanganate, suitable for determination of toxic metals, >=99.5%
    • Potassium permanganate, p.a., ACS reagent, reag. ISO, reag. Ph. Eur., 99.0-100.5%
    • Potassium permanganate, puriss. p.a., ACS reagent, Hg <=0.000005%, >=99.0% (RT)
    • 231-760-3
    • Potassium permanganate, puriss., meets analytical specification of Ph. Eur., BP, USP, 99-100.5%

  • Applications

    Potassium Permanganate (CAS 7722-64-7) is a versatile oxidizing agent widely used across industry; in water treatment it acts as an oxidant and disinfectant for potable water and wastewater, helping remove taste, odor, and color while oxidizing organic contaminants; in textiles and paper, it is used for bleaching and dye decolorization; in organic synthesis and chemical manufacturing it serves as a robust oxidant for oxidizing alcohols and alkenes and for oxidative cleavage of diols; in analytical chemistry it is used for permanganometric titrations and qualitative tests; in environmental remediation it is applied in in-situ chemical oxidation to degrade chlorinated solvents and other contaminants.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 523.95
    methanol 794.86
    isopropanol 468.67
    water 300.47
    ethyl acetate 153.0
    n-propanol 339.06
    acetone 435.24
    n-butanol 297.72
    acetonitrile 251.95
    DMF 1276.15
    toluene 74.05
    isobutanol 215.72
    1,4-dioxane 294.83
    methyl acetate 168.21
    THF 505.35
    2-butanone 224.77
    n-pentanol 188.98
    sec-butanol 313.46
    n-hexane 59.73
    ethylene glycol 433.56
    NMP 490.01
    cyclohexane 64.85
    DMSO 1297.42
    n-butyl acetate 73.24
    n-octanol 134.89
    chloroform 188.28
    n-propyl acetate 94.38
    acetic acid 239.13
    dichloromethane 229.46
    cyclohexanone 155.78
    propylene glycol 279.2
    isopropyl acetate 115.68
    DMAc 666.42
    2-ethoxyethanol 393.18
    isopentanol 203.23
    n-heptane 54.81
    ethyl formate 160.23
    1,2-dichloroethane 210.08
    n-hexanol 163.31
    2-methoxyethanol 834.95
    isobutyl acetate 49.42
    tetrachloromethane 71.32
    n-pentyl acetate 84.75
    transcutol 295.3
    n-heptanol 124.03
    ethylbenzene 47.36
    MIBK 138.86
    2-propoxyethanol 312.35
    tert-butanol 486.42
    MTBE 269.32
    2-butoxyethanol 198.32
    propionic acid 163.42
    o-xylene 79.73
    formic acid 378.65
    diethyl ether 345.86
    m-xylene 72.01
    p-xylene 50.39
    chlorobenzene 55.63
    dimethyl carbonate 165.4
    n-octane 32.52
    formamide 572.38
    cyclopentanone 244.63
    2-pentanone 227.48
    anisole 115.16
    cyclopentyl methyl ether 239.89
    gamma-butyrolactone 233.52
    1-methoxy-2-propanol 589.6
    pyridine 156.31
    3-pentanone 175.18
    furfural 236.08
    n-dodecane 25.05
    diethylene glycol 395.8
    diisopropyl ether 120.24
    tert-amyl alcohol 336.99
    acetylacetone 190.01
    n-hexadecane 26.11
    acetophenone 97.38
    methyl propionate 193.49
    isopentyl acetate 58.37
    trichloroethylene 179.48
    n-nonanol 120.45
    cyclohexanol 199.64
    benzyl alcohol 110.61
    2-ethylhexanol 84.12
    isooctanol 87.43
    dipropyl ether 138.88
    1,2-dichlorobenzene 62.19
    ethyl lactate 101.41
    propylene carbonate 112.86
    n-methylformamide 526.28
    2-pentanol 266.81
    n-pentane 113.17
    1-propoxy-2-propanol 212.97
    1-methoxy-2-propyl acetate 102.54
    2-(2-methoxypropoxy) propanol 141.12
    mesitylene 59.66
    ε-caprolactone 126.49
    p-cymene 45.81
    epichlorohydrin 263.39
    1,1,1-trichloroethane 113.44
    2-aminoethanol 426.99
    morpholine-4-carbaldehyde 418.84
    sulfolane 377.03
    2,2,4-trimethylpentane 37.12
    2-methyltetrahydrofuran 267.25
    n-hexyl acetate 100.16
    isooctane 31.86
    2-(2-butoxyethoxy)ethanol 189.7
    sec-butyl acetate 61.83
    tert-butyl acetate 129.75
    decalin 24.32
    glycerin 454.54
    diglyme 289.92
    acrylic acid 158.22
    isopropyl myristate 62.77
    n-butyric acid 167.65
    acetyl acetate 78.37
    di(2-ethylhexyl) phthalate 53.16
    ethyl propionate 102.66
    nitromethane 371.82
    1,2-diethoxyethane 135.06
    benzonitrile 73.5
    trioctyl phosphate 54.9
    1-bromopropane 158.37
    gamma-valerolactone 263.0
    n-decanol 99.75
    triethyl phosphate 54.06
    4-methyl-2-pentanol 138.13
    propionitrile 170.96
    vinylene carbonate 101.07
    1,1,2-trichlorotrifluoroethane 236.09
    DMS 75.65
    cumene 42.0
    2-octanol 104.29
    2-hexanone 113.53
    octyl acetate 76.01
    limonene 65.06
    1,2-dimethoxyethane 470.65
    ethyl orthosilicate 56.11
    tributyl phosphate 50.77
    diacetone alcohol 217.32
    N,N-dimethylaniline 137.56
    acrylonitrile 194.33
    aniline 131.49
    1,3-propanediol 441.63
    bromobenzene 47.91
    dibromomethane 189.06
    1,1,2,2-tetrachloroethane 198.1
    2-methyl-cyclohexyl acetate 58.35
    tetrabutyl urea 90.8
    diisobutyl methanol 72.01
    2-phenylethanol 98.14
    styrene 50.98
    dioctyl adipate 68.25
    dimethyl sulfate 272.47
    ethyl butyrate 73.05
    methyl lactate 210.99
    butyl lactate 81.43
    diethyl carbonate 51.8
    propanediol butyl ether 170.45
    triethyl orthoformate 63.52
    p-tert-butyltoluene 51.04
    methyl 4-tert-butylbenzoate 123.26
    morpholine 365.02
    tert-butylamine 332.04
    n-dodecanol 82.34
    dimethoxymethane 712.46
    ethylene carbonate 88.28
    cyrene 135.68
    2-ethoxyethyl acetate 92.33
    2-ethylhexyl acetate 48.58
    1,2,4-trichlorobenzene 66.63
    4-methylpyridine 146.35
    dibutyl ether 93.72
    2,6-dimethyl-4-heptanol 72.01
    DEF 322.01
    dimethyl isosorbide 169.93
    tetrachloroethylene 156.47
    eugenol 139.08
    triacetin 87.47
    span 80 124.81
    1,4-butanediol 196.55
    1,1-dichloroethane 164.0
    2-methyl-1-pentanol 128.01
    methyl formate 355.71
    2-methyl-1-butanol 193.41
    n-decane 37.39
    butyronitrile 155.17
    3,7-dimethyl-1-octanol 91.64
    1-chlorooctane 73.79
    1-chlorotetradecane 39.59
    n-nonane 38.42
    undecane 29.93
    tert-butylcyclohexane 24.08
    cyclooctane 35.73
    cyclopentanol 241.66
    tetrahydropyran 215.1
    tert-amyl methyl ether 230.89
    2,5,8-trioxanonane 228.92
    1-hexene 97.75
    2-isopropoxyethanol 246.7
    2,2,2-trifluoroethanol 172.75
    methyl butyrate 118.68

    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