1,2-Dichloroethylene

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  • Identifiers

    CAS number
    540-59-0

    Molecular formula
    C2H2Cl2

    SMILES
    C(=CCl)Cl

    Safety labels

    Flammable
    Flammable

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Pungent 45.57%
    Green 41.68%
    Radish 29.87%
    Vegetable 26.9%
    Fishy 26.84%
    Sulfurous 26.02%
    Alliaceous 24.6%
    Garlic 23.98%
    Gassy 23.25%
    Onion 23.06%

     

    Flavor
    Sulfurous 22.86%
    Mustard 20.97%
    Nitrile 20.88%
    Garlic 20.46%
    Pungent 19.98%
    Rotten 19.07%
    Mousy 19.0%
    Odorless 18.98%
    Formyl 18.85%
    Oriental 18.83%

     

    Odor impact est.
    Medium

    Odor threshold

    • Odor Threshold Low: 0.08 [mmHg]. Odor Threshold High: 17.0 [mmHg]. Odor threshold from "Quick Guide: The Electronic NIOSH Pocket Guide to Chemical Hazards"

  • Properties

    XLogP3-AA
    1.9

    pKa est.
    6.58 (neutral)

    Molecular weight
    96.94 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -71 °F (NTP, 1992)
    • -57 °C
    • -57 to -115 °F

    Boiling point

    • 118 to 140 °F at 760 mmHg (NTP, 1992)
    • 55 °C
    • 118-140 °F

    Flash point

    • 5.91 ˚C est.
    • 39 °F (NTP, 1992)
    • 2 °C
    • 6 °C (43 °F) - closed cup
    • 36 °F (2 °C) - closed cup
    • 2 °C c.c.
    • 36-39 °F

    Solubility expt.

    • less than 1 mg/mL at 70 °F (NTP, 1992)
    • In water, 3.50X10+3 mg/L at 25 °C
    • Insoluble in water
    • Soluble in alcohol, ether, and most other organic solvents
    • Soluble in most organic solvents
    • Solubility in water: poor
    • 0.4%

  • Synonyms

    • 1,2-Dichloroethylene
    • 540-59-0
    • Ethene, 1,2-dichloro-
    • 1,2-DICHLOROETHYLENE, (MIXED ISOMERS)
    • 1,2-Dichloroethene
    • Dioform
    • Acetylene dichloride
    • sym-Dichloroethylene
    • 1,2-Dichlor-aethen
    • Dichloro-1,2-ethylene
    • Ethylene, 1,2-dichloro-
    • NCI-C56031
    • 1,2-Dichlor-aethen [German]
    • CCRIS 6227
    • HSDB 149
    • DTXSID8024991
    • Dichloro-1,2-ethylene [French]
    • XU9RUA6YUT
    • EINECS 208-750-2
    • 1,2-Dichloroethylene,c&t
    • BRN 1719345
    • CHEBI:18882
    • 2-01-00-00158 (Beilstein Handbook Reference)
    • 1,2-Dichloroethylene (cis & trans)
    • 1,2-Dichloroethene,c&t
    • 1,2-Dichlor-aethen (German)
    • 1,2-DICHLOROETHYLENE (MIXTURE OF CIS AND TRANS)
    • Dichloro-1,2-ethylene (French)
    • 1,2-Dichloraethen
    • 1,2-DICHLOROETHENE (USP-RS)
    • 1,2-DICHLOROETHENE [USP-RS]
    • 1,2-Dichloroethene #
    • UNII-XU9RUA6YUT
    • DTXCID304991
    • 1,2-Dichloroethylene, all isomers
    • chlorovinyl chloride
    • Ethylene, 1,2-dichloro- (8CI); 1,2-Dichloroethene; 1,2-Dichloroethylene; Acetylene dichloride; Dioform; sym-Dichloroethylene
    • sym-1,2-Dichloroethylene
    • symmetrical Dichloroethylene
    • 1,2-DichlorA currencythylen
    • Acetylene dichloride (OSHA)
    • 1,2-Dichloroethylene, sym-
    • cis-/trans-1,2-Dichloroethene
    • cis,trans-1,2-Dichloroethylene
    • CHEMBL1385560
    • ACETYLENE DICHLORIDE [MI]
    • cs & trans 1,2-Dichloroethylene
    • cis & trans 1,2-Dichloroethylene
    • 1,2-DICHLOROETHYLENE [HSDB]
    • 1,2-Dichloroethylene (ACGIH:OSHA)
    • AKOS025243626
    • AT37401
    • MSK001094-1000M
    • NCGC00091531-01
    • NS00008258
    • 1,2-DICHLOROETHYLENE (MIXED ISOMERS)
    • Q161475
    • 1,2-Dichloroethylene Solution in Methanol, 1000ug/mL
    • 208-750-2

  • Applications

    1,2-Dichloroethylene (CAS 540-59-0) is used primarily as an industrial intermediate and solvent in chlorinated-organic synthesis. It commonly serves as a feedstock or reagent in the production of other chlorinated compounds and specialty monomers. It is employed as a solvent in coatings, inks, and cleaning formulations for a range of industrial applications. In polymers and plastics processing, it is explored as a precursor for vinyl-based polymers and related resins. It also finds use in adhesive and sealant formulations as a processing solvent or reactive diluent, subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 24.15
    methanol 18.47
    isopropanol 22.07
    water 0.35
    ethyl acetate 92.59
    n-propanol 25.86
    acetone 162.99
    n-butanol 30.44
    acetonitrile 98.41
    DMF 185.61
    toluene 130.62
    isobutanol 24.04
    1,4-dioxane 180.27
    methyl acetate 104.61
    THF 266.02
    2-butanone 124.68
    n-pentanol 28.76
    sec-butanol 28.76
    n-hexane 29.99
    ethylene glycol 8.5
    NMP 336.27
    cyclohexane 102.78
    DMSO 233.51
    n-butyl acetate 152.91
    n-octanol 39.73
    chloroform 337.75
    n-propyl acetate 94.03
    acetic acid 64.15
    dichloromethane 313.79
    cyclohexanone 256.9
    propylene glycol 8.99
    isopropyl acetate 68.89
    DMAc 186.85
    2-ethoxyethanol 48.75
    isopentanol 31.95
    n-heptane 67.65
    ethyl formate 64.31
    1,2-dichloroethane 205.97
    n-hexanol 44.36
    2-methoxyethanol 57.48
    isobutyl acetate 64.35
    tetrachloromethane 105.58
    n-pentyl acetate 86.1
    transcutol 246.38
    n-heptanol 29.35
    ethylbenzene 76.78
    MIBK 72.9
    2-propoxyethanol 68.13
    tert-butanol 35.21
    MTBE 67.02
    2-butoxyethanol 50.57
    propionic acid 40.54
    o-xylene 103.52
    formic acid 15.37
    diethyl ether 82.19
    m-xylene 84.14
    p-xylene 117.14
    chlorobenzene 187.87
    dimethyl carbonate 48.73
    n-octane 25.69
    formamide 33.95
    cyclopentanone 271.2
    2-pentanone 104.1
    anisole 130.09
    cyclopentyl methyl ether 167.51
    gamma-butyrolactone 240.94
    1-methoxy-2-propanol 46.6
    pyridine 244.17
    3-pentanone 110.21
    furfural 274.22
    n-dodecane 17.66
    diethylene glycol 45.35
    diisopropyl ether 43.95
    tert-amyl alcohol 36.74
    acetylacetone 156.57
    n-hexadecane 20.72
    acetophenone 154.53
    methyl propionate 77.56
    isopentyl acetate 123.94
    trichloroethylene 430.47
    n-nonanol 38.76
    cyclohexanol 69.56
    benzyl alcohol 68.03
    2-ethylhexanol 55.37
    isooctanol 28.4
    dipropyl ether 127.72
    1,2-dichlorobenzene 182.69
    ethyl lactate 33.64
    propylene carbonate 137.45
    n-methylformamide 60.05
    2-pentanol 28.67
    n-pentane 28.02
    1-propoxy-2-propanol 77.93
    1-methoxy-2-propyl acetate 113.75
    2-(2-methoxypropoxy) propanol 77.42
    mesitylene 66.13
    ε-caprolactone 181.98
    p-cymene 91.45
    epichlorohydrin 235.83
    1,1,1-trichloroethane 244.85
    2-aminoethanol 12.76
    morpholine-4-carbaldehyde 235.3
    sulfolane 311.3
    2,2,4-trimethylpentane 18.22
    2-methyltetrahydrofuran 208.95
    n-hexyl acetate 97.96
    isooctane 13.0
    2-(2-butoxyethoxy)ethanol 86.01
    sec-butyl acetate 69.38
    tert-butyl acetate 88.13
    decalin 41.31
    glycerin 16.36
    diglyme 220.75
    acrylic acid 46.98
    isopropyl myristate 57.29
    n-butyric acid 56.4
    acetyl acetate 90.94
    di(2-ethylhexyl) phthalate 44.87
    ethyl propionate 78.68
    nitromethane 161.6
    1,2-diethoxyethane 165.72
    benzonitrile 150.69
    trioctyl phosphate 34.15
    1-bromopropane 129.71
    gamma-valerolactone 249.53
    n-decanol 32.23
    triethyl phosphate 71.87
    4-methyl-2-pentanol 22.06
    propionitrile 65.04
    vinylene carbonate 129.0
    1,1,2-trichlorotrifluoroethane 153.56
    DMS 103.38
    cumene 55.61
    2-octanol 27.51
    2-hexanone 109.52
    octyl acetate 62.44
    limonene 140.67
    1,2-dimethoxyethane 156.54
    ethyl orthosilicate 70.14
    tributyl phosphate 47.77
    diacetone alcohol 71.6
    N,N-dimethylaniline 109.54
    acrylonitrile 86.89
    aniline 88.29
    1,3-propanediol 21.02
    bromobenzene 230.91
    dibromomethane 243.05
    1,1,2,2-tetrachloroethane 292.57
    2-methyl-cyclohexyl acetate 107.78
    tetrabutyl urea 80.71
    diisobutyl methanol 51.33
    2-phenylethanol 75.26
    styrene 110.56
    dioctyl adipate 81.94
    dimethyl sulfate 95.95
    ethyl butyrate 137.01
    methyl lactate 33.93
    butyl lactate 51.28
    diethyl carbonate 90.77
    propanediol butyl ether 44.37
    triethyl orthoformate 106.1
    p-tert-butyltoluene 83.38
    methyl 4-tert-butylbenzoate 96.19
    morpholine 149.68
    tert-butylamine 28.86
    n-dodecanol 29.31
    dimethoxymethane 91.04
    ethylene carbonate 96.99
    cyrene 93.43
    2-ethoxyethyl acetate 103.6
    2-ethylhexyl acetate 122.04
    1,2,4-trichlorobenzene 218.94
    4-methylpyridine 220.27
    dibutyl ether 111.03
    2,6-dimethyl-4-heptanol 51.33
    DEF 149.17
    dimethyl isosorbide 190.6
    tetrachloroethylene 228.77
    eugenol 81.89
    triacetin 116.63
    span 80 70.93
    1,4-butanediol 13.5
    1,1-dichloroethane 170.94
    2-methyl-1-pentanol 30.67
    methyl formate 61.92
    2-methyl-1-butanol 29.75
    n-decane 27.14
    butyronitrile 69.09
    3,7-dimethyl-1-octanol 48.16
    1-chlorooctane 66.64
    1-chlorotetradecane 34.57
    n-nonane 29.72
    undecane 21.05
    tert-butylcyclohexane 29.21
    cyclooctane 47.56
    cyclopentanol 66.93
    tetrahydropyran 184.33
    tert-amyl methyl ether 70.97
    2,5,8-trioxanonane 164.79
    1-hexene 56.84
    2-isopropoxyethanol 44.94
    2,2,2-trifluoroethanol 35.73
    methyl butyrate 106.12

    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