Sodium Hypochlorite

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  • Identifiers

    CAS number
    7681-52-9

    Molecular formula
    ClNaO

    SMILES
    [O-]Cl.[Na+]

    Safety labels

    Corrosive
    Corrosive

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 60.08%
    Fishy 44.1%
    Alcoholic 37.09%
    Fermented 30.55%
    Cheesy 29.11%
    Ripe 28.69%
    Oily 26.35%
    Sweet 22.98%
    Solvent 21.75%
    Ethereal 21.3%

     

    Flavor
    Odorless 35.73%
    Fishy 29.65%
    Egg 27.89%
    Rotten 24.98%
    Ammoniacal 24.54%
    Bitter 22.4%
    Decomposing cabbage 21.93%
    Sulfur 20.49%
    Formyl 20.27%
    Mousy 19.99%

     

    Odor impact est.
    High

    Odor threshold

    • The estimated odor threshold is the same as chlorine, 0.3 ppm

  • Properties

    pKa est.
    -0.1 (strong acid)

    Molecular weight
    74.44 g/mol

    Melting point expt.

    • MP: 18 °C /Pentahydrate/
    • -5 °C
    • -30 - -20 °C

    Boiling point

    • Boiling point: 111 °C in solution

    Flash point

    • 31.13 ˚C est.

    Solubility expt.

    • 29.3 g/100 g (0 °C) in water
    • Solubility in water, g/l at 20 °C: 293 (good)

  • Synonyms

    • SODIUM HYPOCHLORITE
    • 7681-52-9
    • Antiformin
    • Clorox
    • Hypochlorous acid, sodium salt
    • Sodium oxychloride
    • Household bleach
    • Chlorox
    • Javex
    • Javelle water
    • Hypochlorite sodium
    • Cloralex
    • Cloropool
    • Dispatch
    • Hyclorite
    • Klorocin
    • Parozone
    • Surchlor
    • Youxiaolin
    • Chloros
    • Deosan
    • Hypure
    • Milton
    • Hospital Milton
    • Milton Crystals
    • Neo-cleaner
    • Neoseptal CL
    • Hypure N
    • Purin B
    • B-K liquid
    • Hyposan and Voxsan
    • Clorox liquid bleach
    • Sunnysol 150
    • Texant
    • Dakins quarter
    • Dakins half
    • NaClO
    • NaOCl
    • Di-Dak-Sol
    • Natrum hypochlorosum
    • Sodium hypochlorite (NaClO)
    • Sodium hypochlorite (NaOCl)
    • Deosan Green Label Steriliser
    • DTXSID8021276
    • DY38VHM5OD
    • XY 12
    • EPA Pesticide Chemical Code 014703
    • Hypochlorous acid, sodium salt (1:1)
    • DTXCID001276
    • CHEBI:32146
    • Hypochlorite, Sodium
    • Airocare
    • Dakins Full
    • Neutral oxidation
    • 84 Disinfectant
    • NaOClean E-Water
    • Milton no.2
    • Milton in emuls wax
    • Milton in liq paraf
    • Household Bleach Detox
    • RefChem:6689
    • QIAN BAO Disinfectant
    • ANTIFORMIN, DENTAL
    • HANNA DISINFECTANTspray
    • Household Bleach Detox 6042
    • Daily Doctor Sterilization Plus
    • TongYi CleanGuard 84 Disinfectant
    • Disinfection Wash Free Hand Sanitizer
    • (Qiqing) Sodium Hypochlorite Disinfectant
    • 231-668-3
    • chlorine base compound
    • sodium;hypochlorite
    • sodiumhypochlorite
    • sodium hypochloride
    • NCGC00091027-01
    • AD Gel
    • Caswell No. 776
    • Dental antiformin
    • CCRIS 708
    • HSDB 748
    • EINECS 231-668-3
    • UNII-DY38VHM5OD
    • MFCD00011120
    • UN 1791
    • Sodium hypochlorite [USP:JAN]
    • ClNaO
    • sodium hypochiorite
    • Sodium hypo chlorite
    • Texant (TN)
    • EC 231-668-3
    • SCHEMBL5239
    • Sodium hypochlorite (JAN/USP)
    • CHEMBL1334078
    • SODIUM HYPOCHLORITE [II]
    • SODIUM HYPOCHLORITE [MI]
    • SODIUM HYPOCHLORITE [JAN]
    • SODIUM HYPOCHLORITE [HSDB]
    • NATRUM HYPOCHLOROSUM [HPUS]
    • SODIUM HYPOCHLORITE [VANDF]
    • SODIUM HYPOCHLORITE [MART.]
    • STR00665
    • Tox21_111062
    • SODIUM HYPOCHLORITE [WHO-DD]
    • AKOS015950665
    • sodium hypochlorite >14% active Chlorine
    • SODIUM HYPOCHLORITE [USP IMPURITY]
    • CAS-7681-52-9
    • NS00075685
    • S0939
    • 7681-52-910022-70-5(pentahydrate)
    • D01711
    • F545154
    • Q407204
    • 7681-52-9

  • Applications

    Sodium hypochlorite is a strong bleaching and sanitizing chemical widely used in real-world applications: whitening and cleaning household items and laundry, with disinfection; disinfection of drinking water, wastewater, and cooling water in industrial systems; pulp and paper bleaching in the pulp-and-paper process; textile bleaching and pretreatment; sanitation of food processing equipment and surfaces; and industrial cleaning of process equipment and facilities.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 537.74
    methanol 833.83
    isopropanol 455.6
    water 177.7
    ethyl acetate 156.94
    n-propanol 361.32
    acetone 598.64
    n-butanol 284.66
    acetonitrile 363.34
    DMF 2021.89
    toluene 53.92
    isobutanol 249.58
    1,4-dioxane 471.23
    methyl acetate 235.02
    THF 538.72
    2-butanone 292.63
    n-pentanol 195.73
    sec-butanol 315.73
    n-hexane 30.7
    ethylene glycol 469.27
    NMP 796.19
    cyclohexane 46.29
    DMSO 1507.63
    n-butyl acetate 85.27
    n-octanol 103.61
    chloroform 154.44
    n-propyl acetate 112.73
    acetic acid 521.33
    dichloromethane 205.11
    cyclohexanone 228.38
    propylene glycol 263.18
    isopropyl acetate 94.21
    DMAc 1011.53
    2-ethoxyethanol 391.25
    isopentanol 207.19
    n-heptane 31.12
    ethyl formate 162.03
    1,2-dichloroethane 183.68
    n-hexanol 118.89
    2-methoxyethanol 736.1
    isobutyl acetate 64.94
    tetrachloromethane 47.57
    n-pentyl acetate 80.86
    transcutol 550.13
    n-heptanol 84.96
    ethylbenzene 34.35
    MIBK 113.67
    2-propoxyethanol 270.05
    tert-butanol 526.47
    MTBE 264.51
    2-butoxyethanol 180.76
    propionic acid 250.1
    o-xylene 56.63
    formic acid 430.06
    diethyl ether 266.15
    m-xylene 44.95
    p-xylene 47.64
    chlorobenzene 60.78
    dimethyl carbonate 156.77
    n-octane 15.47
    formamide 591.92
    cyclopentanone 326.47
    2-pentanone 210.56
    anisole 121.91
    cyclopentyl methyl ether 208.04
    gamma-butyrolactone 315.84
    1-methoxy-2-propanol 462.62
    pyridine 232.77
    3-pentanone 173.22
    furfural 297.89
    n-dodecane 14.98
    diethylene glycol 345.04
    diisopropyl ether 75.9
    tert-amyl alcohol 333.02
    acetylacetone 200.07
    n-hexadecane 15.59
    acetophenone 107.08
    methyl propionate 195.94
    isopentyl acetate 73.47
    trichloroethylene 208.56
    n-nonanol 89.08
    cyclohexanol 204.75
    benzyl alcohol 116.16
    2-ethylhexanol 69.63
    isooctanol 66.1
    dipropyl ether 114.12
    1,2-dichlorobenzene 59.89
    ethyl lactate 85.71
    propylene carbonate 123.8
    n-methylformamide 700.38
    2-pentanol 194.81
    n-pentane 52.01
    1-propoxy-2-propanol 186.43
    1-methoxy-2-propyl acetate 110.23
    2-(2-methoxypropoxy) propanol 172.25
    mesitylene 39.51
    ε-caprolactone 168.12
    p-cymene 33.9
    epichlorohydrin 290.94
    1,1,1-trichloroethane 114.19
    2-aminoethanol 459.92
    morpholine-4-carbaldehyde 684.86
    sulfolane 423.89
    2,2,4-trimethylpentane 23.87
    2-methyltetrahydrofuran 286.89
    n-hexyl acetate 102.35
    isooctane 18.2
    2-(2-butoxyethoxy)ethanol 238.55
    sec-butyl acetate 66.44
    tert-butyl acetate 110.12
    decalin 17.79
    glycerin 397.59
    diglyme 425.85
    acrylic acid 260.45
    isopropyl myristate 54.28
    n-butyric acid 196.9
    acetyl acetate 89.94
    di(2-ethylhexyl) phthalate 52.9
    ethyl propionate 99.27
    nitromethane 656.4
    1,2-diethoxyethane 177.43
    benzonitrile 100.99
    trioctyl phosphate 46.57
    1-bromopropane 115.64
    gamma-valerolactone 386.98
    n-decanol 71.78
    triethyl phosphate 53.15
    4-methyl-2-pentanol 100.41
    propionitrile 204.24
    vinylene carbonate 120.25
    1,1,2-trichlorotrifluoroethane 303.15
    DMS 96.45
    cumene 31.56
    2-octanol 68.26
    2-hexanone 131.2
    octyl acetate 69.75
    limonene 54.78
    1,2-dimethoxyethane 563.21
    ethyl orthosilicate 51.78
    tributyl phosphate 50.37
    diacetone alcohol 180.02
    N,N-dimethylaniline 128.87
    acrylonitrile 253.51
    aniline 114.18
    1,3-propanediol 426.97
    bromobenzene 47.75
    dibromomethane 136.1
    1,1,2,2-tetrachloroethane 178.12
    2-methyl-cyclohexyl acetate 59.66
    tetrabutyl urea 88.7
    diisobutyl methanol 56.08
    2-phenylethanol 86.66
    styrene 47.0
    dioctyl adipate 76.38
    dimethyl sulfate 262.75
    ethyl butyrate 76.18
    methyl lactate 173.58
    butyl lactate 84.85
    diethyl carbonate 55.3
    propanediol butyl ether 195.99
    triethyl orthoformate 66.61
    p-tert-butyltoluene 36.4
    methyl 4-tert-butylbenzoate 116.45
    morpholine 562.57
    tert-butylamine 308.07
    n-dodecanol 60.63
    dimethoxymethane 690.95
    ethylene carbonate 104.32
    cyrene 145.13
    2-ethoxyethyl acetate 112.49
    2-ethylhexyl acetate 57.87
    1,2,4-trichlorobenzene 75.33
    4-methylpyridine 190.7
    dibutyl ether 92.11
    2,6-dimethyl-4-heptanol 56.08
    DEF 399.33
    dimethyl isosorbide 199.31
    tetrachloroethylene 147.76
    eugenol 133.39
    triacetin 110.29
    span 80 143.62
    1,4-butanediol 210.74
    1,1-dichloroethane 148.07
    2-methyl-1-pentanol 137.08
    methyl formate 434.97
    2-methyl-1-butanol 203.27
    n-decane 20.85
    butyronitrile 172.95
    3,7-dimethyl-1-octanol 86.06
    1-chlorooctane 48.99
    1-chlorotetradecane 27.79
    n-nonane 20.62
    undecane 17.07
    tert-butylcyclohexane 17.07
    cyclooctane 17.4
    cyclopentanol 261.4
    tetrahydropyran 288.16
    tert-amyl methyl ether 198.88
    2,5,8-trioxanonane 325.64
    1-hexene 69.75
    2-isopropoxyethanol 242.43
    2,2,2-trifluoroethanol 228.69
    methyl butyrate 135.44

    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