Peracetic Acid

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  • Identifiers

    CAS number
    79-21-0

    Molecular formula
    C2H4O3

    SMILES
    CC(=O)OO

    Safety labels

    Flammable
    Flammable

    Corrosive
    Corrosive

    Acute Toxic
    Acute Toxic

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Caramellic 57.34%
    Ethereal 53.49%
    Sweet 41.0%
    Sharp 40.81%
    Sour 38.51%
    Fruity 38.15%
    Buttery 37.56%
    Burnt 37.11%
    Rummy 34.39%
    Winey 33.92%

     

    Flavor
    Sweet 56.69%
    Sharp 41.57%
    Pungent 41.37%
    Fruity 39.83%
    Buttery 36.84%
    Ethereal 35.5%
    Creamy 34.87%
    Butter 29.3%
    Vinegar 28.68%
    Sour 26.91%

     

    Odor impact est.
    Medium

  • Properties

    XLogP3-AA
    -0.4

    pKa est.
    8.86 (weak base)

    Molecular weight
    76.05 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -22 to 32 °F (EPA, 1998)
    • -0.2 °C
    • 0.1 °C
    • 0 °C
    • -22 to 32 °F

    Boiling point

    • 221 °F at 760 mmHg (EPA, 1998)
    • 110 °C
    • 110.00 °C. @ 760.00 mm Hg
    • 221 °F

    Flash point

    • 26.33 ˚C est.
    • 105 °F Peracetic Acid, 60% Acetic Acid Solution (EPA, 1998)
    • 105 °F (40.6 °C) (open cup)
    • A comparison of producers' safety data sheets shows considerable scatter in measured flashpoints (see Table 2 of ECETOC report). The measured flash point (closed cup) for 5, 15 and 35% PAA was 74-83, 68-81 and 46-62 °C, respectively. For 15 % PAA the open cup flash point was > 100 °C. This scatter may be attributed to several factors e.g., PAA reacting with the sample container used in the flash point determination, thermal instability of the PAA solutions, loss of volatile material during analysis due to decomposition and excessive gassing, releasing oxygen and water which tend to extinguish any flame. While the reported flash point value may not be exact, it is an indication of the temperature at which vapours can ignite. Most of the PAA equilibrium grades ranging from 5% to 15% exhibit closed-cup flash points but no measurable open-cup flash points.
    • 40.5 °C o.c.
    • 105 °F (60% acetic acid solution)

    Solubility expt.

    • Very soluble in ether, sulfuric acid; soluble in ethanol
    • Miscible with water /1.0X10+6 mg/L/ at 25 °C
    • 1000 mg/mL at 25 °C
    • Solubility in water: miscible

  • Synonyms

    • PERACETIC ACID
    • Peroxyacetic acid
    • Ethaneperoxoic acid
    • 79-21-0
    • Estosteril
    • Acetic peroxide
    • Peroxoacetic acid
    • Acetyl hydroperoxide
    • Monoperacetic acid
    • Osbon AC
    • Proxitane 4002
    • Desoxon 1
    • Ethaneperoxic acid
    • Hydroperoxide, acetyl
    • Acide peracetique
    • Acido peroxiacetico
    • Acecide
    • Proxitane
    • Caswell No. 644
    • Peroxy acetic acid
    • Acide peroxyacetique
    • Kyselina peroxyoctova
    • CCRIS 686
    • HSDB 1106
    • UNII-I6KPI2E1HD
    • I6KPI2E1HD
    • peroxy-acetic acid
    • EINECS 201-186-8
    • EPA Pesticide Chemical Code 063201
    • BRN 1098464
    • DTXSID1025853
    • CHEMBL444965
    • DTXCID805853
    • CHEBI:42530
    • EC 201-186-8
    • 4-02-00-00390 (Beilstein Handbook Reference)
    • NCGC00166305-01
    • PERACETIC ACID (MART.)
    • PERACETIC ACID [MART.]
    • Oxypel
    • Perethanoic Acid
    • Proxitane S
    • Acide peracetique [French]
    • Proxitane 12A
    • F50
    • Acide peroxyacetique [French]
    • Acido peroxiacetico [Spanish]
    • Kyselina peroxyoctova [Czech]
    • Proxitane 1507
    • LCAP
    • Aceticperoxide
    • Ethanperoxsaure
    • Peressigsaure
    • Bactipal
    • Oxymaster
    • Soproper
    • acetyldioxidanyl
    • Dialox
    • peractic acid
    • Peroxyessigsaure
    • Peroxyethansaure
    • Sekusept steril
    • Acetic peroxid
    • per-acetic acid
    • Acido peracetico
    • Peroxacetic acid
    • Acid, Peracetic
    • Peraflu D
    • acetic acid oxide
    • TLCUO Phytoncide
    • peroxyethanoic acid
    • PU US Phytoncide
    • Acid, Peroxyacetic
    • AcOOH
    • Acecide (TN)
    • Acid, Peroxyethanoic
    • GPES
    • JOYCARE
    • UNICARE
    • Wofasteril E 400
    • CLEAN WORKS
    • TLCUO LEMON
    • CARE PLUS
    • TLCUO PURE
    • PU US LEMON
    • PU US PURE
    • CH3CO2OH
    • WECLEAN C2 TLCUO
    • Ethaneperoxoic acid, 9CI
    • CH3C(O)OOH
    • BACTERIA ZERO PREMIUM
    • PERACETIC ACID [MI]
    • PERACETIC ACID [HSDB]
    • PERACETIC ACID [WHO-DD]
    • DTXSID40957943
    • peroxyacetic acid (peracetic acid)
    • BLOWHALE DEODORANT SENITIZER
    • Tox21_112402
    • BDBM50266095
    • Peroxyacetic acid, >43% and with >6% hydrogen peroxide [Forbidden]
    • AKOS015837803
    • DB14556
    • CAS-79-21-0
    • USEPA/OPP Pesticide Code: 063201
    • NS00001663
    • D03467
    • EN300-173399
    • Dr.Vir Germ Peroxyacetic acid Multi-disinfectant
    • Q375140
    • Peroxyacetic acid, >43% and with >6% hydrogen peroxide
    • 201-186-8

  • Applications

    Peracetic acid (CAS 79-21-0) is used primarily as a sterilant and sanitizer across several industries: in food and beverage processing for equipment and surface disinfection (including CIP) and for sanitation of produce and process lines; in dairy, meat, and seafood processing for sanitation of processing equipment; in healthcare and pharmaceutical manufacturing for surface disinfection and cleanroom sanitization; in water treatment and cooling systems for oxidation and biofilm control; and in the pulp and paper sector as a chlorine-free bleaching agent. It is also employed in agriculture for sanitizer of equipment and post-harvest produce surfaces.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 104.46
    methanol 207.85
    isopropanol 63.93
    water 383.22
    ethyl acetate 14.2
    n-propanol 51.96
    acetone 67.64
    n-butanol 41.81
    acetonitrile 59.79
    DMF 289.11
    toluene 5.29
    isobutanol 40.71
    1,4-dioxane 46.09
    methyl acetate 36.48
    THF 51.37
    2-butanone 37.27
    n-pentanol 28.71
    sec-butanol 46.56
    n-hexane 3.28
    ethylene glycol 67.6
    NMP 231.77
    cyclohexane 2.16
    DMSO 264.25
    n-butyl acetate 5.82
    n-octanol 12.68
    chloroform 17.63
    n-propyl acetate 10.01
    acetic acid 117.75
    dichloromethane 34.08
    cyclohexanone 32.73
    propylene glycol 51.67
    isopropyl acetate 8.75
    DMAc 253.43
    2-ethoxyethanol 79.35
    isopentanol 38.47
    n-heptane 1.53
    ethyl formate 53.66
    1,2-dichloroethane 23.36
    n-hexanol 9.43
    2-methoxyethanol 150.65
    isobutyl acetate 5.39
    tetrachloromethane 5.99
    n-pentyl acetate 8.82
    transcutol 97.51
    n-heptanol 9.28
    ethylbenzene 5.28
    MIBK 13.43
    2-propoxyethanol 27.24
    tert-butanol 71.08
    MTBE 30.27
    2-butoxyethanol 26.53
    propionic acid 45.73
    o-xylene 8.62
    formic acid 229.03
    diethyl ether 16.55
    m-xylene 4.89
    p-xylene 8.38
    chlorobenzene 6.4
    dimethyl carbonate 19.54
    n-octane 1.05
    formamide 328.77
    cyclopentanone 47.96
    2-pentanone 20.86
    anisole 20.27
    cyclopentyl methyl ether 16.98
    gamma-butyrolactone 68.64
    1-methoxy-2-propanol 80.49
    pyridine 29.0
    3-pentanone 15.2
    furfural 120.52
    n-dodecane 0.98
    diethylene glycol 42.6
    diisopropyl ether 4.65
    tert-amyl alcohol 63.46
    acetylacetone 25.47
    n-hexadecane 1.01
    acetophenone 22.72
    methyl propionate 19.99
    isopentyl acetate 6.58
    trichloroethylene 29.87
    n-nonanol 11.04
    cyclohexanol 21.4
    benzyl alcohol 26.32
    2-ethylhexanol 6.15
    isooctanol 8.69
    dipropyl ether 5.16
    1,2-dichlorobenzene 8.5
    ethyl lactate 13.9
    propylene carbonate 32.15
    n-methylformamide 175.87
    2-pentanol 21.67
    n-pentane 3.15
    1-propoxy-2-propanol 16.23
    1-methoxy-2-propyl acetate 9.24
    2-(2-methoxypropoxy) propanol 37.47
    mesitylene 3.84
    ε-caprolactone 32.92
    p-cymene 3.28
    epichlorohydrin 63.83
    1,1,1-trichloroethane 11.21
    2-aminoethanol 91.8
    morpholine-4-carbaldehyde 171.59
    sulfolane 110.03
    2,2,4-trimethylpentane 2.72
    2-methyltetrahydrofuran 35.12
    n-hexyl acetate 12.72
    isooctane 1.23
    2-(2-butoxyethoxy)ethanol 41.43
    sec-butyl acetate 6.04
    tert-butyl acetate 11.31
    decalin 1.9
    glycerin 88.76
    diglyme 81.41
    acrylic acid 54.47
    isopropyl myristate 5.35
    n-butyric acid 35.38
    acetyl acetate 10.22
    di(2-ethylhexyl) phthalate 10.62
    ethyl propionate 9.88
    nitromethane 209.29
    1,2-diethoxyethane 15.83
    benzonitrile 19.07
    trioctyl phosphate 6.44
    1-bromopropane 11.32
    gamma-valerolactone 105.25
    n-decanol 8.23
    triethyl phosphate 7.31
    4-methyl-2-pentanol 14.11
    propionitrile 27.09
    vinylene carbonate 36.99
    1,1,2-trichlorotrifluoroethane 61.88
    DMS 12.24
    cumene 5.83
    2-octanol 7.76
    2-hexanone 15.07
    octyl acetate 7.49
    limonene 4.36
    1,2-dimethoxyethane 105.97
    ethyl orthosilicate 6.59
    tributyl phosphate 7.85
    diacetone alcohol 31.62
    N,N-dimethylaniline 24.87
    acrylonitrile 43.18
    aniline 17.99
    1,3-propanediol 88.21
    bromobenzene 4.48
    dibromomethane 17.19
    1,1,2,2-tetrachloroethane 22.51
    2-methyl-cyclohexyl acetate 7.25
    tetrabutyl urea 14.9
    diisobutyl methanol 5.42
    2-phenylethanol 10.56
    styrene 6.08
    dioctyl adipate 10.68
    dimethyl sulfate 50.34
    ethyl butyrate 6.62
    methyl lactate 31.13
    butyl lactate 12.28
    diethyl carbonate 5.99
    propanediol butyl ether 35.85
    triethyl orthoformate 6.49
    p-tert-butyltoluene 3.19
    methyl 4-tert-butylbenzoate 24.4
    morpholine 65.43
    tert-butylamine 40.21
    n-dodecanol 6.2
    dimethoxymethane 68.71
    ethylene carbonate 24.45
    cyrene 44.93
    2-ethoxyethyl acetate 14.08
    2-ethylhexyl acetate 4.9
    1,2,4-trichlorobenzene 10.66
    4-methylpyridine 35.16
    dibutyl ether 8.44
    2,6-dimethyl-4-heptanol 5.42
    DEF 53.51
    dimethyl isosorbide 42.41
    tetrachloroethylene 17.69
    eugenol 27.11
    triacetin 18.23
    span 80 20.52
    1,4-butanediol 40.23
    1,1-dichloroethane 15.32
    2-methyl-1-pentanol 28.63
    methyl formate 134.31
    2-methyl-1-butanol 38.88
    n-decane 1.55
    butyronitrile 26.38
    3,7-dimethyl-1-octanol 11.69
    1-chlorooctane 4.3
    1-chlorotetradecane 2.06
    n-nonane 1.52
    undecane 1.19
    tert-butylcyclohexane 2.02
    cyclooctane 1.03
    cyclopentanol 31.66
    tetrahydropyran 19.69
    tert-amyl methyl ether 25.41
    2,5,8-trioxanonane 64.05
    1-hexene 7.44
    2-isopropoxyethanol 41.81
    2,2,2-trifluoroethanol 70.3
    methyl butyrate 18.87

    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