Potassium Chlorate

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  • Identifiers

    CAS number
    3811-04-9

    Molecular formula
    ClKO3

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

    Safety labels

    Oxidizer
    Oxidizer

    Acute Toxic
    Acute Toxic

  • Odor profile

    Fragrance
    Odorless 72.63%
    Sweet 34.85%
    Fishy 20.68%
    Alcoholic 16.28%
    Clean 15.54%
    Bitter 14.18%
    Balsamic 13.84%
    Musk 13.71%
    Animal 13.67%
    Cooling 13.42%

     

    Flavor
    Odorless 64.45%
    Mild 22.84%
    Sweet-like 21.36%
    Bland 19.96%
    Very slight 19.32%
    Fishy 18.9%
    Mousy 18.86%
    Rotten 18.86%
    Formyl 18.15%
    Yeast 18.11%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    -1.37 (strong acid)

    Molecular weight
    122.55 g/mol

    Melting point expt.

    • 680 °F (USCG, 1999)
    • 368 °C
    • Decomposes into perchlorate and oxygen above melting point; explodes with sulfuric acid; inflames with explosion if tritruated with any organic substance, sulfur, phosphorus, sulfite, hypophosphite, and other oxidizable substances

    Boiling point

    • 400 °C (decomposes)

    Flash point

    • 104.04 ˚C est.

    Solubility expt.

    • 8.61 g/100 g water at 25 °C
    • 1 g dissolves slowly in 16.5 ml water, 1.8 ml boiling water, about 50 ml glycerol; almost insol in alcohol
    • SLIGHTLY SOL IN LIQUID AMMONIA; INSOL IN ACETONE; SOL IN ALKALIES
    • In water, 70,000 mg/L at 25 °C
    • Solubility in water, g/100ml: 7.3

  • Synonyms

    • POTASSIUM CHLORATE
    • 3811-04-9
    • Potcrate
    • Anforstan
    • Fekabit
    • Kaliumchlorat
    • Berthollet salt
    • Salt of tarter
    • Berthollet's salt
    • Chlorate of potash
    • Potassium oxymuriate
    • Oxymuriate of potash
    • Chlorate de potassium
    • Chlorate of potassium
    • Chloric acid, potassium salt
    • Potash chlorate (DOT)
    • H35KS68EE7
    • DTXSID6047448
    • KALI CHLORICUM
    • Potassio (clorato di)
    • Potassium (chlorate de)
    • Chloric acid potassium salt (1:1)
    • DTXCID4027448
    • NSC-68505
    • DRY-CID
    • RefChem:6152
    • AQUACID-100
    • AQUACID-120
    • AQUACID-200
    • AQUACID-220
    • HEMORRHOIDS PROCTALGIA
    • Dry Concentrate for Hemodialysis
    • Acid Concentrate for Hemodialysis
    • 223-289-7
    • potassium;chlorate
    • MFCD00011361
    • ClKO3
    • Potassium chlorate(V)
    • Chlorate de potassium [French]
    • HSDB 1110
    • Potassio (clorato di) [Italian]
    • Potassium (chlorate de) [French]
    • EINECS 223-289-7
    • NSC 68505
    • UN1485
    • UN2427
    • Kaliumchloraat [Dutch]
    • Kaliumchlorat [German]
    • AI3-02907
    • UNII-H35KS68EE7
    • KALI CHLORICUM [HPUS]
    • potassium chlorate(V) (HTM)
    • K (Cl O3)
    • POTASSIUM CHLORATE [MI]
    • CHEMBL3188561
    • POTASSIUM CHLORATE [HSDB]
    • POTASSIUM CHLORATE [MART.]
    • POTASSIUM CHLORATE [WHO-DD]
    • Tox21_302523
    • Chloric acid, potassium salt (1:1)
    • AKOS015903479
    • AKOS025293911
    • FP29441
    • NCGC00256721-01
    • CAS-3811-04-9
    • Potassium chlorate [UN1485] [Oxidizer]
    • NS00081688
    • EC 223-289-7
    • Q309328
    • 3811-04-9

  • Applications

    Potassium Chlorate (CAS 3811-04-9) is an inorganic oxidizer with several industrial applications: primarily as the oxidizing agent in pyrotechnics and signaling; historically used as a bleaching agent for pulp and paper production; used as an oxidizing reagent and intermediate in organic synthesis; employed as a reagent in laboratory and analytical chemistry; and may appear as a component in oxidation-based manufacturing processes, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 168.35
    methanol 251.24
    isopropanol 158.15
    water 77.73
    ethyl acetate 50.61
    n-propanol 114.88
    acetone 179.77
    n-butanol 96.41
    acetonitrile 91.51
    DMF 608.92
    toluene 21.57
    isobutanol 80.71
    1,4-dioxane 134.1
    methyl acetate 67.64
    THF 229.52
    2-butanone 83.72
    n-pentanol 60.77
    sec-butanol 102.11
    n-hexane 16.0
    ethylene glycol 130.26
    NMP 269.71
    cyclohexane 18.45
    DMSO 649.93
    n-butyl acetate 31.47
    n-octanol 42.31
    chloroform 49.51
    n-propyl acetate 34.68
    acetic acid 99.69
    dichloromethane 65.46
    cyclohexanone 73.38
    propylene glycol 93.24
    isopropyl acetate 39.59
    DMAc 347.45
    2-ethoxyethanol 124.26
    isopentanol 73.66
    n-heptane 14.05
    ethyl formate 59.64
    1,2-dichloroethane 65.02
    n-hexanol 50.39
    2-methoxyethanol 259.01
    isobutyl acetate 20.42
    tetrachloromethane 18.74
    n-pentyl acetate 33.28
    transcutol 115.97
    n-heptanol 40.13
    ethylbenzene 14.08
    MIBK 48.75
    2-propoxyethanol 107.58
    tert-butanol 201.78
    MTBE 103.46
    2-butoxyethanol 73.62
    propionic acid 72.46
    o-xylene 25.18
    formic acid 130.61
    diethyl ether 104.89
    m-xylene 20.61
    p-xylene 18.0
    chlorobenzene 20.74
    dimethyl carbonate 60.85
    n-octane 8.13
    formamide 181.4
    cyclopentanone 115.14
    2-pentanone 73.54
    anisole 39.59
    cyclopentyl methyl ether 82.56
    gamma-butyrolactone 124.12
    1-methoxy-2-propanol 191.57
    pyridine 71.67
    3-pentanone 58.38
    furfural 108.01
    n-dodecane 6.84
    diethylene glycol 125.02
    diisopropyl ether 35.56
    tert-amyl alcohol 124.42
    acetylacetone 73.35
    n-hexadecane 7.17
    acetophenone 38.1
    methyl propionate 67.85
    isopentyl acetate 27.39
    trichloroethylene 58.59
    n-nonanol 38.58
    cyclohexanol 69.46
    benzyl alcohol 41.62
    2-ethylhexanol 29.08
    isooctanol 30.37
    dipropyl ether 44.92
    1,2-dichlorobenzene 21.73
    ethyl lactate 37.29
    propylene carbonate 54.6
    n-methylformamide 200.66
    2-pentanol 74.01
    n-pentane 27.09
    1-propoxy-2-propanol 76.4
    1-methoxy-2-propyl acetate 45.06
    2-(2-methoxypropoxy) propanol 62.87
    mesitylene 17.71
    ε-caprolactone 58.43
    p-cymene 15.64
    epichlorohydrin 103.56
    1,1,1-trichloroethane 36.24
    2-aminoethanol 137.52
    morpholine-4-carbaldehyde 216.9
    sulfolane 199.64
    2,2,4-trimethylpentane 10.85
    2-methyltetrahydrofuran 112.08
    n-hexyl acetate 38.87
    isooctane 8.82
    2-(2-butoxyethoxy)ethanol 77.35
    sec-butyl acetate 23.32
    tert-butyl acetate 48.81
    decalin 7.23
    glycerin 144.19
    diglyme 123.81
    acrylic acid 74.53
    isopropyl myristate 23.68
    n-butyric acid 65.93
    acetyl acetate 30.33
    di(2-ethylhexyl) phthalate 25.46
    ethyl propionate 36.38
    nitromethane 158.06
    1,2-diethoxyethane 51.16
    benzonitrile 31.97
    trioctyl phosphate 23.17
    1-bromopropane 46.06
    gamma-valerolactone 136.14
    n-decanol 32.05
    triethyl phosphate 24.25
    4-methyl-2-pentanol 43.65
    propionitrile 63.17
    vinylene carbonate 49.41
    1,1,2-trichlorotrifluoroethane 95.77
    DMS 35.0
    cumene 13.9
    2-octanol 33.6
    2-hexanone 41.54
    octyl acetate 29.7
    limonene 22.9
    1,2-dimethoxyethane 186.97
    ethyl orthosilicate 24.67
    tributyl phosphate 22.96
    diacetone alcohol 79.36
    N,N-dimethylaniline 45.78
    acrylonitrile 77.82
    aniline 46.75
    1,3-propanediol 134.16
    bromobenzene 15.75
    dibromomethane 50.77
    1,1,2,2-tetrachloroethane 64.15
    2-methyl-cyclohexyl acetate 24.6
    tetrabutyl urea 38.97
    diisobutyl methanol 26.78
    2-phenylethanol 35.26
    styrene 16.32
    dioctyl adipate 30.91
    dimethyl sulfate 113.94
    ethyl butyrate 30.42
    methyl lactate 72.44
    butyl lactate 36.85
    diethyl carbonate 23.36
    propanediol butyl ether 68.67
    triethyl orthoformate 28.54
    p-tert-butyltoluene 18.08
    methyl 4-tert-butylbenzoate 54.1
    morpholine 160.34
    tert-butylamine 129.55
    n-dodecanol 26.85
    dimethoxymethane 258.98
    ethylene carbonate 43.19
    cyrene 59.23
    2-ethoxyethyl acetate 39.85
    2-ethylhexyl acetate 22.53
    1,2,4-trichlorobenzene 25.69
    4-methylpyridine 65.04
    dibutyl ether 33.05
    2,6-dimethyl-4-heptanol 26.78
    DEF 118.93
    dimethyl isosorbide 77.94
    tetrachloroethylene 50.71
    eugenol 57.68
    triacetin 39.76
    span 80 55.76
    1,4-butanediol 63.67
    1,1-dichloroethane 50.83
    2-methyl-1-pentanol 43.77
    methyl formate 147.83
    2-methyl-1-butanol 67.0
    n-decane 9.73
    butyronitrile 55.48
    3,7-dimethyl-1-octanol 33.62
    1-chlorooctane 21.53
    1-chlorotetradecane 12.54
    n-nonane 9.67
    undecane 7.94
    tert-butylcyclohexane 7.64
    cyclooctane 8.31
    cyclopentanol 94.98
    tetrahydropyran 92.6
    tert-amyl methyl ether 81.76
    2,5,8-trioxanonane 100.23
    1-hexene 29.33
    2-isopropoxyethanol 78.94
    2,2,2-trifluoroethanol 66.6
    methyl butyrate 44.84

    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