Thallous chloride

Overview IFRA Request a quote

  • Identifiers

    CAS number
    7791-12-0

    Molecular formula
    ClTl

    SMILES
    Cl[Tl]

    Safety labels

    Acute Toxic
    Acute Toxic

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Fishy 54.15%
    Cheesy 44.03%
    Odorless 42.66%
    Ripe 38.96%
    Alcoholic 33.58%
    Oily 32.94%
    Fermented 32.62%
    Pungent 24.94%
    Solvent 22.78%
    Sweet 22.75%

     

  • Properties

    pKa est.
    -11.68 (strong acid)

    Molecular weight
    239.83 g/mol

    Melting point expt.

    • 806 °F (EPA, 1998)
    • 430 °C
    • 303.5 °C

    Boiling point

    • 1328 °F at 760 mmHg (EPA, 1998)
    • 720 °C

    Flash point

    • 51.25 ˚C est.

    Solubility expt.

    • HYDROGEN CHLORIDE DECREASES ITS SOLUBILITY IN WATER
    • 0.29 g/100 cc cold water @ 15.5 °C; 2.41 g/100 cc hot water @ 99.35 °C
    • Insol in alcohol, acetone
    • In water, 2,900 mg/l at 25 °C.

  • Synonyms

    • Thallium chloride
    • Thallium(I) chloride
    • THALLOUS CHLORIDE
    • Thallium monochloride
    • 7791-12-0
    • Thallium(1+) chloride
    • chlorothallium
    • Thallium chloride (TlCl)
    • TlCl
    • Thallium chloride (VAN)
    • RCRA waste number U216
    • chloridothallium
    • HSDB 6066
    • EINECS 232-241-4
    • NSC 15197
    • [TlCl]
    • CHEBI:37117
    • 37CB58V15B
    • MFCD00011274
    • NSC-15197
    • (TlCl)
    • Thallous chloride tl 201
    • Thallium chloride TlCl
    • RCRA waste no. U216
    • UNII-37CB58V15B
    • WLN: TL G
    • Thallium chloride, (TlCl)
    • Thallium(I) chloride, 99%
    • THALLIUM CHLORIDE(TLCL)
    • DTXCID104333
    • THALLIUM (1+) CHLORIDE
    • THALLIUM CHLORIDE (TICL)
    • Thallium(I) chloride, ultra dry
    • NSC15197
    • AKOS015916191
    • DB09316
    • Q425234
    • Thallium(I) chloride, 99.999% trace metals basis
    • 232-241-4

  • Applications

    Thallous chloride is primarily a laboratory reagent and a synthetic precursor in inorganic chemistry. It is used to prepare thallium(I) salts and related compounds, supporting research and development in inorganic synthesis, materials science, and specialty phosphor/optoelectronic applications. In analytical chemistry, TlCl can serve as a source of Tl+ in qualitative and instrumental analyses for halide or sulfide tests. In electronics and coatings research, thallium-containing materials derived from TlCl are studied as dopants or intermediates in niche phosphors and thin films. Handling is restricted by toxicity and local regulatory requirements.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1115.39
    methanol 1323.43
    isopropanol 897.72
    water 80.47
    ethyl acetate 489.97
    n-propanol 758.17
    acetone 1137.07
    n-butanol 728.68
    acetonitrile 543.22
    DMF 2264.17
    toluene 359.07
    isobutanol 551.21
    1,4-dioxane 1263.69
    methyl acetate 516.14
    THF 1872.59
    2-butanone 643.06
    n-pentanol 561.74
    sec-butanol 622.32
    n-hexane 145.61
    ethylene glycol 618.09
    NMP 1528.71
    cyclohexane 228.94
    DMSO 2188.22
    n-butyl acetate 461.4
    n-octanol 437.98
    chloroform 1162.7
    n-propyl acetate 422.07
    acetic acid 1225.82
    dichloromethane 984.83
    cyclohexanone 919.14
    propylene glycol 478.53
    isopropyl acetate 364.95
    DMAc 1302.19
    2-ethoxyethanol 921.49
    isopentanol 549.64
    n-heptane 205.01
    ethyl formate 456.35
    1,2-dichloroethane 716.1
    n-hexanol 569.32
    2-methoxyethanol 1513.61
    isobutyl acetate 296.27
    tetrachloromethane 389.61
    n-pentyl acetate 425.36
    transcutol 1647.0
    n-heptanol 443.39
    ethylbenzene 200.68
    MIBK 424.25
    2-propoxyethanol 947.54
    tert-butanol 930.66
    MTBE 572.64
    2-butoxyethanol 715.92
    propionic acid 599.76
    o-xylene 308.28
    formic acid 675.18
    diethyl ether 659.05
    m-xylene 309.31
    p-xylene 256.65
    chlorobenzene 421.55
    dimethyl carbonate 374.08
    n-octane 99.75
    formamide 817.03
    cyclopentanone 1156.14
    2-pentanone 660.95
    anisole 455.41
    cyclopentyl methyl ether 845.73
    gamma-butyrolactone 1002.69
    1-methoxy-2-propanol 1110.81
    pyridine 885.06
    3-pentanone 482.23
    furfural 1045.09
    n-dodecane 81.61
    diethylene glycol 1043.77
    diisopropyl ether 283.1
    tert-amyl alcohol 630.62
    acetylacetone 694.28
    n-hexadecane 87.37
    acetophenone 424.35
    methyl propionate 485.99
    isopentyl acetate 371.61
    trichloroethylene 1082.92
    n-nonanol 378.94
    cyclohexanol 709.66
    benzyl alcohol 472.18
    2-ethylhexanol 356.72
    isooctanol 352.45
    dipropyl ether 505.48
    1,2-dichlorobenzene 394.57
    ethyl lactate 306.04
    propylene carbonate 560.38
    n-methylformamide 911.99
    2-pentanol 560.93
    n-pentane 221.92
    1-propoxy-2-propanol 782.55
    1-methoxy-2-propyl acetate 506.31
    2-(2-methoxypropoxy) propanol 527.13
    mesitylene 230.37
    ε-caprolactone 694.14
    p-cymene 217.05
    epichlorohydrin 1006.6
    1,1,1-trichloroethane 680.47
    2-aminoethanol 735.07
    morpholine-4-carbaldehyde 1540.6
    sulfolane 1386.74
    2,2,4-trimethylpentane 107.76
    2-methyltetrahydrofuran 1035.96
    n-hexyl acetate 463.79
    isooctane 97.27
    2-(2-butoxyethoxy)ethanol 762.6
    sec-butyl acetate 296.44
    tert-butyl acetate 439.41
    decalin 105.97
    glycerin 772.77
    diglyme 1260.35
    acrylic acid 599.44
    isopropyl myristate 240.55
    n-butyric acid 710.6
    acetyl acetate 378.81
    di(2-ethylhexyl) phthalate 240.93
    ethyl propionate 325.0
    nitromethane 1190.02
    1,2-diethoxyethane 639.4
    benzonitrile 439.76
    trioctyl phosphate 210.99
    1-bromopropane 488.06
    gamma-valerolactone 1276.85
    n-decanol 302.69
    triethyl phosphate 228.3
    4-methyl-2-pentanol 342.45
    propionitrile 408.75
    vinylene carbonate 531.53
    1,1,2-trichlorotrifluoroethane 1012.9
    DMS 343.28
    cumene 174.33
    2-octanol 341.44
    2-hexanone 472.67
    octyl acetate 298.33
    limonene 315.16
    1,2-dimethoxyethane 1183.67
    ethyl orthosilicate 242.81
    tributyl phosphate 220.63
    diacetone alcohol 629.59
    N,N-dimethylaniline 447.64
    acrylonitrile 519.2
    aniline 531.83
    1,3-propanediol 860.35
    bromobenzene 386.05
    dibromomethane 761.66
    1,1,2,2-tetrachloroethane 935.21
    2-methyl-cyclohexyl acetate 302.42
    tetrabutyl urea 330.67
    diisobutyl methanol 285.92
    2-phenylethanol 438.92
    styrene 259.92
    dioctyl adipate 318.95
    dimethyl sulfate 589.7
    ethyl butyrate 376.77
    methyl lactate 449.38
    butyl lactate 379.2
    diethyl carbonate 258.68
    propanediol butyl ether 677.41
    triethyl orthoformate 324.48
    p-tert-butyltoluene 235.17
    methyl 4-tert-butylbenzoate 484.85
    morpholine 1404.26
    tert-butylamine 645.34
    n-dodecanol 255.03
    dimethoxymethane 1154.4
    ethylene carbonate 452.73
    cyrene 533.91
    2-ethoxyethyl acetate 480.49
    2-ethylhexyl acetate 328.38
    1,2,4-trichlorobenzene 482.77
    4-methylpyridine 758.96
    dibutyl ether 383.56
    2,6-dimethyl-4-heptanol 285.92
    DEF 838.83
    dimethyl isosorbide 772.85
    tetrachloroethylene 796.48
    eugenol 533.13
    triacetin 439.22
    span 80 570.56
    1,4-butanediol 470.96
    1,1-dichloroethane 669.22
    2-methyl-1-pentanol 428.82
    methyl formate 699.12
    2-methyl-1-butanol 510.19
    n-decane 118.86
    butyronitrile 464.81
    3,7-dimethyl-1-octanol 343.83
    1-chlorooctane 268.66
    1-chlorotetradecane 145.88
    n-nonane 122.46
    undecane 94.99
    tert-butylcyclohexane 109.91
    cyclooctane 105.02
    cyclopentanol 812.57
    tetrahydropyran 1032.31
    tert-amyl methyl ether 495.8
    2,5,8-trioxanonane 919.99
    1-hexene 308.62
    2-isopropoxyethanol 649.13
    2,2,2-trifluoroethanol 508.76
    methyl butyrate 431.87

    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