1,1,1-Trichloroethane

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  • Identifiers

    CAS number
    71-55-6

    Molecular formula
    C2H3Cl3

    SMILES
    CC(Cl)(Cl)Cl

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Floral 43.73%
    Sweet 32.9%
    Woody 32.21%
    Fresh 29.91%
    Odorless 28.87%
    Citrus 26.27%
    Rose 23.87%
    Balsamic 22.24%
    Clean 21.94%
    Earthy 21.27%

     

    Flavor
    Odorless 28.52%
    Sulfurous 28.07%
    Meaty 25.15%
    Sulfury 23.83%
    Fishy 20.96%
    Glue 19.17%
    Bloody 19.12%
    Onion 18.49%
    Bouillon 18.36%
    Skunky 18.31%

     

    Odor impact est.
    High

    Odor threshold

    • Odor Threshold Low: 16.0 [mmHg]. Odor Threshold High: 714.0 [mmHg]. Detection odor threshold from AIHA (mean = 390 ppm)
    • Odor threshold = 100 ppm
    • The odor may be noticeable at concentrations near 100 ppm, well below those known to cause physiological response. However, the odor at 500 ppm and even 1000 ppm is not so unpleasant as to discourage exposure. The odor has been described as strong and unpleasant at 1500-2000 ppm. It has been reported that female test subjects exposed to 350 ppm objected to the odor; however, this has not been an industrial problem.
    • It has an odor similar to chloroform.
    • 100 ppm

  • Properties

    XLogP3-AA
    2.4

    pKa est.
    7.86 (neutral)

    Molecular weight
    133.4 g/mol

    Vapor pressure est.

    • hPa @ 20°C
    • hPa @ 25°C

    Evaporation rate
    Ultra fast

    Melting point expt.

    • -26.5 °F (NTP, 1992)
    • -30 °C
    • -30.4 °C
    • -26.5 °F
    • -23 °F

    Boiling point

    • 165.4 °F at 760 mmHg (NTP, 1992)
    • 74.0 °C
    • 74 °C
    • 74.00 °C. @ 760.00 mm Hg
    • 165 °F

    Flash point

    • 0.23 ˚C est.
    • greater than 200 °F (NTP, 1992)
    • Flash point = none
    • >200 °F

    Solubility expt.

    • less than 1 mg/mL at 68 °F (NTP, 1992)
    • In water, 1,290 mg/L at 25 °C
    • Soluble in acetone, benzene, methanol, carbon tetrachloride and ether
    • Soluble in all common organic solvents and is a very good solvent for fats, paraffins, and other organic compounds.
    • In water, 1,100 mg/L at 25 °C
    • 1.29 mg/mL at 25 °C
    • Solubility in water: poor
    • 0.4%

  • Synonyms

    • 1,1,1-TRICHLOROETHANE
    • TRICHLOROETHANE
    • Methylchloroform
    • 71-55-6
    • Chlorothene
    • Methyl chloroform
    • Inhibisol
    • Cleanite
    • Chlorothene NU
    • Chlorothene VG
    • Aerothene TT
    • alpha-T
    • Genklene LB
    • Ethane, 1,1,1-trichloro-
    • Methyltrichloromethane
    • Chlorotene
    • Chlorten
    • Solvent 111
    • Tafclean
    • Chlorothene SM
    • alpha-Trichloroethane
    • Ethana NU
    • Three One A
    • Three One S
    • Chloroform, methyl-
    • Trichloromethylmethane
    • 1,1,1-TCE
    • .alpha.-Trichloroethane
    • 1,1,1-Trichloraethan
    • Rcra waste number U226
    • Chlorothane NU
    • Tri-ethane
    • Trichloro-1,1,1-ethane
    • Chlorothene, inhibited
    • ICI-CF 2
    • 1,1,1-Tricloroetano
    • 1,1,1-Trichlorethane
    • Solvethane
    • Ethana
    • Caswell No. 875
    • NCI-C04626
    • Chloroethene NU
    • HCC 140a
    • 25323-89-1
    • Distillex DS1
    • 1,1,1-Trichloro-Ethane
    • F 140a
    • .alpha.-T
    • Chloroetene
    • CCRIS 1290
    • CF 2
    • HSDB 157
    • CH3CCl3
    • 1-1-1-trichloroethane
    • UN 2831
    • 1,1,1-Trichloraethan [German]
    • 1,1,1-Tricloroetano [Italian]
    • methyl-chloroform
    • NSC 9367
    • NSC-9367
    • Trichloro-1,1,1-ethane [French]
    • EINECS 200-756-3
    • UN2831
    • RCRA-U226
    • EPA Pesticide Chemical Code 081201
    • BRN 1731614
    • 1,1,1-Trichloroethane, technical grade
    • DTXSID0021381
    • UNII-113C650IR1
    • 1,1,1-Trichlorathan
    • 1,1,1 Trichloroethane
    • 1,1,1-TRICHLOROETHANE-2-D1
    • UN-2831
    • TRICHLOROETHANE [II]
    • METHYLCHLOROFORM [HSDB]
    • TRICHLOROETHANE [VANDF]
    • DTXCID501381
    • TRICHLOROETHANE [MART.]
    • CHEBI:36015
    • NSC9367
    • EC 200-756-3
    • 4-01-00-00138 (Beilstein Handbook Reference)
    • 1,1,1-TRICHLOROETHANE [MI]
    • 113C650IR1
    • 1,1,1-TRICHLOROETHANE [IARC]
    • 1,1,1-TRICHLOROETHANE [USP-RS]
    • Baltana
    • Dowclene LS
    • TRICHLOROETHANE (II)
    • 90229-85-9
    • TRICHLOROETHANE (MART.)
    • 1,1,1-Trichloraethan (German)
    • 1,1,1-Tricloroetano (Italian)
    • 1,1,1-trichloroethan
    • Trichloroethanes
    • Trichloro-1,1,1-ethane (French)
    • 1,1,1-TRICHLOROETHANE (IARC)
    • 1,1,1-TRICHLOROETHANE (USP-RS)
    • 1,1-Trichloroethane
    • RCRA waste no. U226
    • Trichloroethane, 1,1,1-
    • Triethane
    • alphaT
    • AI3-02061
    • alphaTrichloroethane
    • Chloroform, methyl
    • 1,1-Tricloroetano
    • 1,1-Trichloraethan
    • GENKLENE
    • 1,1 Trichloroethane
    • 1,1-Trichloorethaan
    • Caswell No 875
    • 1,1,1Tricloroetano
    • 1,1,1Trichloraethan
    • 1,1,1Trichlorethane
    • Trichloroethane (VAN)
    • Trichloro-1,1-ethane
    • Trichloro1,1,1ethane
    • Chlorothene (Inhibited)
    • Chloroethene (inhibited)
    • 2E - Residual Solvents
    • Methyl chloroform (1,1,1-Trichloroethane)
    • ICICF 2
    • Ethane, 1,1,1trichloro
    • Trichloroethane, 1,1,1
    • WLN: GXGG1
    • 1,1,1-Trichloroethane [UN2831] [Poison]
    • 07B - Chlorinated Solvents

  • Applications

    1,1,1-Trichloroethane (CAS 71-55-6) has historically been used as a non-flammable chlorinated solvent for metal degreasing and precision cleaning. It is widely employed in electronics manufacturing and component cleaning, including delicate parts and assemblies. It is also used as a paint stripper and varnish remover, and as a solvent for adhesives, inks, and coatings in industrial finishing and manufacturing processes. In polymer and plastics processing, it may be used as a cleaning solvent or processing aid. It can also serve as an intermediate solvent in chemical syntheses, subject to applicable regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 123.61
    methanol 123.3
    isopropanol 117.69
    water 7.13
    ethyl acetate 282.08
    n-propanol 112.0
    acetone 395.78
    n-butanol 115.23
    acetonitrile 215.45
    DMF 790.26
    toluene 285.08
    isobutanol 99.06
    1,4-dioxane 449.17
    methyl acetate 290.23
    THF 615.07
    2-butanone 300.66
    n-pentanol 91.09
    sec-butanol 124.56
    n-hexane 63.09
    ethylene glycol 53.44
    NMP 895.61
    cyclohexane 107.65
    DMSO 516.76
    n-butyl acetate 201.98
    n-octanol 130.18
    chloroform 559.9
    n-propyl acetate 189.39
    acetic acid 199.64
    dichloromethane 478.82
    cyclohexanone 456.65
    propylene glycol 67.56
    isopropyl acetate 224.36
    DMAc 843.18
    2-ethoxyethanol 182.65
    isopentanol 108.19
    n-heptane 69.2
    ethyl formate 194.66
    1,2-dichloroethane 314.46
    n-hexanol 123.09
    2-methoxyethanol 284.17
    isobutyl acetate 143.05
    tetrachloromethane 159.09
    n-pentyl acetate 180.03
    transcutol 411.06
    n-heptanol 92.56
    ethylbenzene 152.89
    MIBK 215.83
    2-propoxyethanol 242.35
    tert-butanol 174.92
    MTBE 253.03
    2-butoxyethanol 161.61
    propionic acid 146.57
    o-xylene 253.6
    formic acid 81.91
    diethyl ether 229.79
    m-xylene 223.49
    p-xylene 212.17
    chlorobenzene 276.83
    dimethyl carbonate 239.49
    n-octane 41.57
    formamide 133.26
    cyclopentanone 549.74
    2-pentanone 288.46
    anisole 304.04
    cyclopentyl methyl ether 390.42
    gamma-butyrolactone 538.55
    1-methoxy-2-propanol 266.62
    pyridine 352.15
    3-pentanone 275.62
    furfural 554.77
    n-dodecane 38.11
    diethylene glycol 185.52
    diisopropyl ether 140.9
    tert-amyl alcohol 170.9
    acetylacetone 467.59
    n-hexadecane 42.67
    acetophenone 315.82
    methyl propionate 281.62
    isopentyl acetate 187.51
    trichloroethylene 585.53
    n-nonanol 124.2
    cyclohexanol 181.18
    benzyl alcohol 181.34
    2-ethylhexanol 116.34
    isooctanol 83.27
    dipropyl ether 194.48
    1,2-dichlorobenzene 292.3
    ethyl lactate 125.95
    propylene carbonate 353.69
    n-methylformamide 248.83
    2-pentanol 112.77
    n-pentane 65.83
    1-propoxy-2-propanol 217.19
    1-methoxy-2-propyl acetate 283.23
    2-(2-methoxypropoxy) propanol 226.08
    mesitylene 173.05
    ε-caprolactone 388.78
    p-cymene 130.44
    epichlorohydrin 506.3
    1,1,1-trichloroethane 416.65
    2-aminoethanol 76.01
    morpholine-4-carbaldehyde 749.77
    sulfolane 679.59
    2,2,4-trimethylpentane 56.39
    2-methyltetrahydrofuran 427.92
    n-hexyl acetate 239.65
    isooctane 42.14
    2-(2-butoxyethoxy)ethanol 237.15
    sec-butyl acetate 161.44
    tert-butyl acetate 279.14
    decalin 68.16
    glycerin 108.31
    diglyme 430.3
    acrylic acid 155.88
    isopropyl myristate 137.44
    n-butyric acid 172.86
    acetyl acetate 267.79
    di(2-ethylhexyl) phthalate 123.6
    ethyl propionate 206.06
    nitromethane 451.65
    1,2-diethoxyethane 234.08
    benzonitrile 239.19
    trioctyl phosphate 93.99
    1-bromopropane 209.34
    gamma-valerolactone 675.21
    n-decanol 102.33
    triethyl phosphate 146.54
    4-methyl-2-pentanol 88.87
    propionitrile 151.33
    vinylene carbonate 320.01
    1,1,2-trichlorotrifluoroethane 381.0
    DMS 251.91
    cumene 114.27
    2-octanol 92.01
    2-hexanone 198.87
    octyl acetate 163.67
    limonene 186.42
    1,2-dimethoxyethane 411.41
    ethyl orthosilicate 140.77
    tributyl phosphate 114.64
    diacetone alcohol 268.24
    N,N-dimethylaniline 281.77
    acrylonitrile 192.74
    aniline 233.98
    1,3-propanediol 103.95
    bromobenzene 315.89
    dibromomethane 341.52
    1,1,2,2-tetrachloroethane 500.74
    2-methyl-cyclohexyl acetate 193.57
    tetrabutyl urea 169.08
    diisobutyl methanol 99.55
    2-phenylethanol 184.78
    styrene 179.69
    dioctyl adipate 186.78
    dimethyl sulfate 447.33
    ethyl butyrate 200.93
    methyl lactate 172.29
    butyl lactate 140.23
    diethyl carbonate 155.04
    propanediol butyl ether 159.28
    triethyl orthoformate 182.3
    p-tert-butyltoluene 147.28
    methyl 4-tert-butylbenzoate 269.36
    morpholine 406.65
    tert-butylamine 129.75
    n-dodecanol 89.06
    dimethoxymethane 488.61
    ethylene carbonate 260.8
    cyrene 283.57
    2-ethoxyethyl acetate 233.8
    2-ethylhexyl acetate 178.56
    1,2,4-trichlorobenzene 366.26
    4-methylpyridine 453.03
    dibutyl ether 174.13
    2,6-dimethyl-4-heptanol 99.55
    DEF 415.56
    dimethyl isosorbide 446.02
    tetrachloroethylene 309.75
    eugenol 231.47
    triacetin 281.16
    span 80 208.17
    1,4-butanediol 59.04
    1,1-dichloroethane 330.28
    2-methyl-1-pentanol 96.95
    methyl formate 252.78
    2-methyl-1-butanol 113.95
    n-decane 55.27
    butyronitrile 154.3
    3,7-dimethyl-1-octanol 135.06
    1-chlorooctane 133.4
    1-chlorotetradecane 72.86
    n-nonane 55.6
    undecane 43.93
    tert-butylcyclohexane 67.5
    cyclooctane 59.82
    cyclopentanol 194.1
    tetrahydropyran 354.3
    tert-amyl methyl ether 259.73
    2,5,8-trioxanonane 341.22
    1-hexene 112.72
    2-isopropoxyethanol 152.5
    2,2,2-trifluoroethanol 149.22
    methyl butyrate 237.19

    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