Aluminum Chloride

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  • Identifiers

    CAS number
    7446-70-0

    Molecular formula
    AlCl3

    SMILES
    [Al](Cl)(Cl)Cl

    Safety labels

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Odorless 49.44%
    Fishy 40.11%
    Sweet 28.06%
    Ripe 21.33%
    Cheesy 19.53%
    Oily 17.15%
    Animal 16.34%
    Floral 16.08%
    Fresh 16.01%
    Musty 15.94%

     

    Flavor
    Odorless 39.39%
    Sulfury 24.65%
    Sulfurous 24.08%
    Fishy 23.45%
    Meaty 22.5%
    Roasted 18.93%
    Glue 18.77%
    Mousy 18.72%
    Bloody 18.67%
    Rotten 18.65%

     

    Odor impact est.
    High

    Odor threshold

    • Gives water a bitter astringent taste, with perception threshold at a concentration of 0.1 mg/L; odor perception threshold is 0.5 mg/L (calculating on the aluminum ion).

  • Properties

    pKa est.
    -10.93 (strong acid)

    Molecular weight
    133.34 g/mol

    Melting point expt.

    • 381 °F (USCG, 1999)
    • -30 °F (USCG, 1999)
    • 194
    • 192.6 °C
    • MP: 190 °C at 2.5 atmospheres, sublimes readily at 178 °C /Aluminum chloride anhydrous/
    • MP: decomposes /Aluminum chloride hydrate/

    Boiling point

    • 230 °F at 760 mmHg (USCG, 1999)
    • 182.7 °C at 752 mm Hg /Sublimation temperature/

    Flash point

    • -24.15 ˚C est.

    Solubility expt.

    • Water reactive
    • Soluble in benzene, carbon tetrachloride, chloroform.
    • Freely soluble in many organic solvents, such as benzophenone, nitrobenzene.
    • Solubility in water: reaction

  • Synonyms

    • Aluminum trichloride
    • trichloroalumane
    • Aluminium trichloride
    • Trichloroaluminum
    • Aluminum chloride anhydrous
    • AlCl3
    • Pearsall
    • Aluminiumchlorid
    • TK Flock
    • Aluminum chloride (1:3)
    • Chlorure d'aluminium
    • Alluminio(cloruro di)
    • Caswell No. 029
    • aluminium(III) chloride
    • Aluminium, (chlorure d')
    • Aluminum chloride, anhydrous
    • trichloridoaluminium
    • Aluminum chloride (anhydrous)
    • Aluminum, (chlorure d')
    • EPA Pesticide Chemical Code 013901
    • LIF1N9568Y
    • DTXSID6029674
    • CHEBI:30114
    • (AlCl3)
    • [AlCl3]
    • Driclor
    • Hemostat
    • Lumicain
    • Aarica
    • Odaban
    • ZeroSweat
    • Anhydrol fte
    • Dr Sweat
    • Gppe a-pers
    • Frenna AC
    • Hemox A
    • Topical Hemo-Stat
    • Aluminum Muriaticum
    • NRG Hemo-Stat
    • Gingi-Aid Solution
    • ZeroSweat with Aloe
    • Antiperspirant ODABAN
    • CERTAIN DRI
    • Antiperspirant Towlette
    • RefChem:6376
    • Aluminum Chloride 14%
    • Aluminum Chloride 25%
    • Urban Street Ocean Breeze
    • Anhydrous Aluminum Chloride
    • CERTAIN DRI ROLL-ON
    • Scotts Select NEPHRO-stat
    • Spray Antiperspirant ODABAN
    • ZeroSweat Antiperspirant 12%
    • DTXCID809674
    • Hand Antiperspirant Nightly Use
    • Certain Dri Antiperspirant Foot-Lotion
    • Certain Dri Antiperspirant Hand-Lotion
    • Certain Dri Clinical Strength Roll On
    • Gibson Healthcare Buffered Hemostatic Solution
    • Ocean Breeze Roll On Antiperspirant/Deodorant
    • Duradry PM Sweat Minimizing Antiperspirant Gel
    • ZeroSweat 3 DAY PROTECTION ANTIPERSPIRANT
    • Clinical Strength MiracleDry Antiperspirant Deodorant PM
    • 231-208-1
    • 944-402-2
    • 3CYT62D3GA
    • 7446-70-0
    • Aluminium chloride
    • Aluminium muriaticum
    • Aluminum Chloride
    • CHEBI:30115
    • NSC-143015
    • NSC-143016
    • Xerac AC
    • Aluminum chloride (AlCl3)
    • 7371-55-3
    • Aluminum chloride, anhydrous, powder
    • MFCD00003422
    • WLN: AL G3
    • Aluminiumchlorid [German]
    • Hemoban
    • Chlorure d'aluminium [French]
    • CCRIS 6871
    • HSDB 607
    • Alluminio(cloruro di) [Italian]
    • Aluminum, (chlorure d') [French]
    • Aluminium, (chlorure d') [French]
    • EINECS 231-208-1
    • UN1726
    • UN2581
    • NSC 143015
    • NSC 143016
    • aluminium(3+) chloride
    • AI3-01917
    • SCHEMBL1565
    • UNII-LIF1N9568Y
    • Aluminum chloride, ultra dry
    • CHEMBL3833401
    • NSC143015
    • NSC143016
    • Aluminum chloride, puriss., 98.0%
    • AKOS015902776
    • Aluminum chloride, anhydrous, granular
    • Aluminum chloride, reagent grade, 98%
    • DB11081
    • NCGC00180999-01
    • Aluminum chloride, ReagentPlus(R), 99%
    • BP-10698
    • NS00075678
    • Aluminum chloride, 99.99% trace metals basis
    • Aluminum chloride, anhydrous, sublimed, >=98%
    • Aluminum chloride, SAJ first grade, >=98.0%
    • EC 231-208-1
    • Q314036
    • Aluminum chloride, anhydrous, >= 99%, -40 Powder
    • Aluminum chloride, anhydrous [UN1726] [Corrosive]
    • Aluminum chloride, purum, anhydrous, >=98.0% (AT)
    • Aluminum chloride,ultra dry, 99.999% anhydrous, powder
    • Aluminum chloride, 99.98% trace metals grade anhydrous, powder
    • Aluminum chloride, anhydrous, powder, 99.99% trace metals basis
    • Aluminum chloride, anhydrous, powder, 99.999% trace metals basis
    • Aluminum standard for AAS, analytical standard, traceable to BAM
    • Aluminum chloride, anhydrous, crystallized 4-6 mesh size (crystalline chunks)
    • 7446-70-0

  • Applications

    Aluminum Chloride (CAS 7446-70-0) is a strong Lewis acid widely used as a catalyst in Friedel-Crafts alkylation and acylation, enabling aromatic substitution in the synthesis of pharmaceutical intermediates and fragrance ingredients. It also serves as a promoter in certain polymerization and resin-curing processes in the plastics, coatings, and adhesives industries. In fragrance and flavor chemistry, it is used to synthesize key aromatic compounds and intermediates. It is employed as a catalyst in the production of agrochemicals and other specialty chemicals requiring efficient aromatic substitution, with compliance to regulatory requirements and quality control. Additionally, it is used as a catalyst for various condensation steps in chemical synthesis under controlled conditions and regulatory guidance.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 646.09
    methanol 725.54
    isopropanol 584.17
    water 35.49
    ethyl acetate 289.74
    n-propanol 502.67
    acetone 576.73
    n-butanol 512.29
    acetonitrile 232.84
    DMF 1205.38
    toluene 235.89
    isobutanol 373.6
    1,4-dioxane 579.75
    methyl acetate 249.01
    THF 1110.46
    2-butanone 368.94
    n-pentanol 333.03
    sec-butanol 470.11
    n-hexane 182.12
    ethylene glycol 269.65
    NMP 718.43
    cyclohexane 216.39
    DMSO 1082.07
    n-butyl acetate 216.67
    n-octanol 271.75
    chloroform 720.83
    n-propyl acetate 195.88
    acetic acid 374.16
    dichloromethane 654.86
    cyclohexanone 472.19
    propylene glycol 259.1
    isopropyl acetate 242.7
    DMAc 710.65
    2-ethoxyethanol 442.3
    isopentanol 370.39
    n-heptane 168.14
    ethyl formate 243.07
    1,2-dichloroethane 462.85
    n-hexanol 352.66
    2-methoxyethanol 807.89
    isobutyl acetate 141.03
    tetrachloromethane 288.77
    n-pentyl acetate 236.29
    transcutol 500.42
    n-heptanol 297.43
    ethylbenzene 137.19
    MIBK 269.53
    2-propoxyethanol 504.79
    tert-butanol 629.88
    MTBE 431.2
    2-butoxyethanol 404.62
    propionic acid 264.73
    o-xylene 190.19
    formic acid 240.0
    diethyl ether 540.44
    m-xylene 202.41
    p-xylene 169.98
    chlorobenzene 219.89
    dimethyl carbonate 223.43
    n-octane 92.17
    formamide 348.65
    cyclopentanone 581.33
    2-pentanone 406.22
    anisole 242.13
    cyclopentyl methyl ether 564.38
    gamma-butyrolactone 509.17
    1-methoxy-2-propanol 696.59
    pyridine 408.75
    3-pentanone 307.74
    furfural 475.76
    n-dodecane 62.3
    diethylene glycol 466.39
    diisopropyl ether 230.59
    tert-amyl alcohol 474.95
    acetylacetone 366.97
    n-hexadecane 66.8
    acetophenone 206.61
    methyl propionate 307.23
    isopentyl acetate 191.28
    trichloroethylene 569.78
    n-nonanol 234.54
    cyclohexanol 445.82
    benzyl alcohol 221.0
    2-ethylhexanol 213.23
    isooctanol 228.78
    dipropyl ether 337.59
    1,2-dichlorobenzene 211.62
    ethyl lactate 140.61
    propylene carbonate 271.3
    n-methylformamide 480.89
    2-pentanol 437.8
    n-pentane 247.47
    1-propoxy-2-propanol 403.45
    1-methoxy-2-propyl acetate 236.63
    2-(2-methoxypropoxy) propanol 219.97
    mesitylene 165.92
    ε-caprolactone 347.83
    p-cymene 126.69
    epichlorohydrin 536.79
    1,1,1-trichloroethane 418.84
    2-aminoethanol 373.72
    morpholine-4-carbaldehyde 618.33
    sulfolane 664.45
    2,2,4-trimethylpentane 93.3
    2-methyltetrahydrofuran 627.54
    n-hexyl acetate 251.41
    isooctane 88.0
    2-(2-butoxyethoxy)ethanol 312.72
    sec-butyl acetate 150.12
    tert-butyl acetate 291.4
    decalin 85.8
    glycerin 353.01
    diglyme 523.32
    acrylic acid 240.31
    isopropyl myristate 134.9
    n-butyric acid 365.56
    acetyl acetate 179.49
    di(2-ethylhexyl) phthalate 115.89
    ethyl propionate 199.09
    nitromethane 418.91
    1,2-diethoxyethane 274.54
    benzonitrile 192.4
    trioctyl phosphate 110.18
    1-bromopropane 379.89
    gamma-valerolactone 561.41
    n-decanol 180.03
    triethyl phosphate 118.59
    4-methyl-2-pentanol 249.22
    propionitrile 239.95
    vinylene carbonate 241.87
    1,1,2-trichlorotrifluoroethane 451.17
    DMS 156.53
    cumene 114.83
    2-octanol 255.96
    2-hexanone 244.06
    octyl acetate 167.58
    limonene 182.34
    1,2-dimethoxyethane 615.95
    ethyl orthosilicate 128.35
    tributyl phosphate 102.97
    diacetone alcohol 360.29
    N,N-dimethylaniline 251.75
    acrylonitrile 261.43
    aniline 293.2
    1,3-propanediol 465.97
    bromobenzene 223.98
    dibromomethane 527.23
    1,1,2,2-tetrachloroethane 567.21
    2-methyl-cyclohexyl acetate 155.9
    tetrabutyl urea 156.44
    diisobutyl methanol 170.79
    2-phenylethanol 223.49
    styrene 162.67
    dioctyl adipate 155.91
    dimethyl sulfate 328.09
    ethyl butyrate 189.43
    methyl lactate 237.65
    butyl lactate 197.04
    diethyl carbonate 127.73
    propanediol butyl ether 310.82
    triethyl orthoformate 168.59
    p-tert-butyltoluene 146.93
    methyl 4-tert-butylbenzoate 261.6
    morpholine 681.46
    tert-butylamine 488.81
    n-dodecanol 146.82
    dimethoxymethane 827.53
    ethylene carbonate 216.66
    cyrene 228.08
    2-ethoxyethyl acetate 223.88
    2-ethylhexyl acetate 169.76
    1,2,4-trichlorobenzene 239.4
    4-methylpyridine 401.07
    dibutyl ether 223.01
    2,6-dimethyl-4-heptanol 170.79
    DEF 486.98
    dimethyl isosorbide 339.48
    tetrachloroethylene 457.21
    eugenol 252.53
    triacetin 186.52
    span 80 263.11
    1,4-butanediol 217.94
    1,1-dichloroethane 435.77
    2-methyl-1-pentanol 248.45
    methyl formate 352.45
    2-methyl-1-butanol 356.57
    n-decane 98.58
    butyronitrile 278.12
    3,7-dimethyl-1-octanol 185.39
    1-chlorooctane 184.72
    1-chlorotetradecane 95.18
    n-nonane 103.14
    undecane 74.82
    tert-butylcyclohexane 94.63
    cyclooctane 110.88
    cyclopentanol 518.55
    tetrahydropyran 590.42
    tert-amyl methyl ether 377.29
    2,5,8-trioxanonane 366.89
    1-hexene 284.32
    2-isopropoxyethanol 313.19
    2,2,2-trifluoroethanol 198.55
    methyl butyrate 231.1

    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