Lead Arsenate

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  • Identifiers

    CAS number
    7784-40-9

    Molecular formula
    AsHO4Pb

    SMILES
    O[As](=O)([O-])[O-].[Pb+2]

    Safety labels

    Acute Toxic
    Acute Toxic

    Health Hazard
    Health

    Environmental Hazard
    Environmental

  • Odor profile

    Fragrance
    Odorless 83.14%
    Sour 19.18%
    Clean 17.99%
    Sharp 14.46%
    Sweet 13.39%
    Bitter 12.16%
    Alcoholic 11.75%
    Savory 11.54%
    Milky 11.27%
    Balsamic 11.24%

     

    Flavor
    Odorless 71.7%
    Sour 33.96%
    Vinegar 23.95%
    Bland 23.05%
    Formyl 20.88%
    Mousy 20.14%
    Mild 20.14%
    Soy 19.76%
    Pungent 19.61%
    Acidic 19.47%

     

  • Properties

    pKa est.
    -6.53 (strong acid)

    Molecular weight
    347.0 g/mol

    Melting point expt.

    • 280 °C (decomposes)

    Flash point

    • 213.11 ˚C est.

    Solubility expt.

    • Insoluble in water
    • Soluble in nitric acid, alkalies
    • Solubility in water, g/100ml: 0.0003 (none)

  • Synonyms

    • LEAD ARSENATE
    • Schultenite
    • Lead hydrogen arsenate
    • Acid lead arsenate
    • Arsinette
    • Gypsine
    • NAT Schultenite
    • 7784-40-9
    • Arsenate of lead
    • Plumbous arsenate
    • Lead acid arsenate
    • Ortho L40 dust
    • Lead hydrogenarsenate
    • Dibasic lead arsenate
    • Lead arsenate, basic
    • Standard lead arsenate
    • Caswell No. 525
    • Acid lead orthoarsenate
    • Lead arsenate (standard)
    • Arseniate de plomb
    • Diplumbic hydrogen arsenate
    • Arseniate de plomb [French]
    • Lead(2+) monohydrogen arsenate
    • Arsenic acid, lead salt
    • HSDB 1648
    • UNII-A9AI2R9EWN
    • Arsenic acid (H3AsO4), lead(2+) salt (1:1)
    • A9AI2R9EWN
    • Arsenic acid (H3AsO4), lead salt
    • EINECS 232-064-2
    • hydrogen arsorate;lead(2+)
    • Arsenic acid, lead(2+) salt(1:1)
    • Lead(II) arsenate (1:1)
    • EPA Pesticide Chemical Code 013503
    • 7645-25-2
    • LEAD HYDROARSENATE
    • LEAD ARSENATE [MI]
    • LEAD ARSENATE [HSDB]
    • DTXSID4042092
    • CHEBI:81881
    • Arsenic acid (H3AsO4) lead(2+) salt (1:1)
    • Arseniate de plomb (French)
    • Soprabel
    • NuRexform
    • Lead arsenic acid
    • Acid lead arsenite
    • Arseniato de plomo
    • Ortho L10 dust
    • PbHAsO4
    • Ortho L-10 dust
    • Ortho L-40 dust
    • SECURITY
    • Lead arsenate, solid
    • Salt arsenate of lead
    • arsenic acid lead salt
    • Arsenic acid, lead(2+) salt (1:1)
    • Arsenic acid, lead(II)
    • Pesticide Code 13503
    • Arsenic acid, lead(2+)
    • lead(2+) hydrogen arsenate
    • arsenic acid lead(2+) salt
    • Arseniato de plomo (Spanish)
    • DTXCID2022092
    • UWRBYRMOUPAKLM-UHFFFAOYSA-L
    • arsenic acid (H3AsO4) lead salt
    • arsenic acid (H3AsO4) lead(2+) salt
    • lambda2-lead(2+) ion hydrogen arsorate
    • C18648
    • ARSENIC ACID (H3ASO4), LEAD (2+)SALT (1:1)

  • Applications

    Lead Arsenate (CAS 7784-40-9) has been used historically as an inorganic insecticide in agriculture to control orchard pests; its use is now heavily restricted due to arsenic toxicity to humans and the environment; in environmental management contexts, it may be encountered as legacy pesticide residues in soils, sediments, and waterways, prompting remediation and monitoring; in inorganic synthesis and materials research, it can serve as a source of arsenate for preparing lead arsenate-containing materials or as a reference sample in arsenate chemistry studies.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 553.5
    methanol 924.95
    isopropanol 453.01
    water 825.78
    ethyl acetate 130.87
    n-propanol 369.12
    acetone 692.17
    n-butanol 299.71
    acetonitrile 301.55
    DMF 2252.79
    toluene 73.28
    isobutanol 238.76
    1,4-dioxane 439.27
    methyl acetate 192.53
    THF 643.65
    2-butanone 267.83
    n-pentanol 213.66
    sec-butanol 272.73
    n-hexane 48.39
    ethylene glycol 602.69
    NMP 863.77
    cyclohexane 68.27
    DMSO 2493.77
    n-butyl acetate 83.19
    n-octanol 124.07
    chloroform 88.23
    n-propyl acetate 109.04
    acetic acid 301.15
    dichloromethane 171.0
    cyclohexanone 226.55
    propylene glycol 336.63
    isopropyl acetate 97.39
    DMAc 1121.79
    2-ethoxyethanol 507.16
    isopentanol 209.41
    n-heptane 48.03
    ethyl formate 192.26
    1,2-dichloroethane 211.72
    n-hexanol 140.61
    2-methoxyethanol 954.9
    isobutyl acetate 54.31
    tetrachloromethane 31.58
    n-pentyl acetate 81.87
    transcutol 421.63
    n-heptanol 112.27
    ethylbenzene 44.43
    MIBK 133.56
    2-propoxyethanol 341.87
    tert-butanol 453.96
    MTBE 203.06
    2-butoxyethanol 230.0
    propionic acid 184.14
    o-xylene 76.26
    formic acid 514.22
    diethyl ether 279.14
    m-xylene 65.99
    p-xylene 48.79
    chlorobenzene 43.46
    dimethyl carbonate 199.94
    n-octane 24.72
    formamide 824.7
    cyclopentanone 357.02
    2-pentanone 227.1
    anisole 124.95
    cyclopentyl methyl ether 254.33
    gamma-butyrolactone 318.65
    1-methoxy-2-propanol 670.61
    pyridine 212.65
    3-pentanone 182.51
    furfural 348.43
    n-dodecane 18.37
    diethylene glycol 466.32
    diisopropyl ether 80.64
    tert-amyl alcohol 266.39
    acetylacetone 233.34
    n-hexadecane 19.48
    acetophenone 120.74
    methyl propionate 190.47
    isopentyl acetate 57.97
    trichloroethylene 146.32
    n-nonanol 112.24
    cyclohexanol 190.07
    benzyl alcohol 138.51
    2-ethylhexanol 68.54
    isooctanol 78.16
    dipropyl ether 141.44
    1,2-dichlorobenzene 43.79
    ethyl lactate 114.23
    propylene carbonate 125.99
    n-methylformamide 813.23
    2-pentanol 216.58
    n-pentane 84.79
    1-propoxy-2-propanol 240.85
    1-methoxy-2-propyl acetate 111.6
    2-(2-methoxypropoxy) propanol 179.14
    mesitylene 53.57
    ε-caprolactone 165.75
    p-cymene 33.62
    epichlorohydrin 331.93
    1,1,1-trichloroethane 64.74
    2-aminoethanol 565.85
    morpholine-4-carbaldehyde 717.56
    sulfolane 542.9
    2,2,4-trimethylpentane 20.17
    2-methyltetrahydrofuran 276.93
    n-hexyl acetate 94.05
    isooctane 16.94
    2-(2-butoxyethoxy)ethanol 249.28
    sec-butyl acetate 59.62
    tert-butyl acetate 101.19
    decalin 20.12
    glycerin 547.41
    diglyme 420.89
    acrylic acid 191.58
    isopropyl myristate 58.28
    n-butyric acid 161.18
    acetyl acetate 78.68
    di(2-ethylhexyl) phthalate 58.95
    ethyl propionate 107.88
    nitromethane 563.32
    1,2-diethoxyethane 166.94
    benzonitrile 85.93
    trioctyl phosphate 56.88
    1-bromopropane 122.72
    gamma-valerolactone 404.91
    n-decanol 93.91
    triethyl phosphate 59.04
    4-methyl-2-pentanol 112.56
    propionitrile 183.49
    vinylene carbonate 121.59
    1,1,2-trichlorotrifluoroethane 260.03
    DMS 81.72
    cumene 36.37
    2-octanol 87.59
    2-hexanone 135.9
    octyl acetate 78.9
    limonene 48.68
    1,2-dimethoxyethane 722.49
    ethyl orthosilicate 57.62
    tributyl phosphate 57.09
    diacetone alcohol 201.07
    N,N-dimethylaniline 158.58
    acrylonitrile 228.9
    aniline 144.61
    1,3-propanediol 495.58
    bromobenzene 33.63
    dibromomethane 127.76
    1,1,2,2-tetrachloroethane 150.83
    2-methyl-cyclohexyl acetate 58.84
    tetrabutyl urea 117.92
    diisobutyl methanol 57.85
    2-phenylethanol 103.13
    styrene 51.77
    dioctyl adipate 80.57
    dimethyl sulfate 365.04
    ethyl butyrate 82.67
    methyl lactate 227.73
    butyl lactate 91.95
    diethyl carbonate 58.04
    propanediol butyl ether 191.91
    triethyl orthoformate 72.29
    p-tert-butyltoluene 35.87
    methyl 4-tert-butylbenzoate 128.37
    morpholine 499.35
    tert-butylamine 284.94
    n-dodecanol 79.49
    dimethoxymethane 946.53
    ethylene carbonate 112.87
    cyrene 182.93
    2-ethoxyethyl acetate 98.89
    2-ethylhexyl acetate 46.86
    1,2,4-trichlorobenzene 48.64
    4-methylpyridine 187.41
    dibutyl ether 87.06
    2,6-dimethyl-4-heptanol 57.85
    DEF 388.09
    dimethyl isosorbide 215.91
    tetrachloroethylene 119.13
    eugenol 162.0
    triacetin 93.29
    span 80 148.62
    1,4-butanediol 272.36
    1,1-dichloroethane 113.16
    2-methyl-1-pentanol 131.4
    methyl formate 578.3
    2-methyl-1-butanol 189.01
    n-decane 25.67
    butyronitrile 160.15
    3,7-dimethyl-1-octanol 80.37
    1-chlorooctane 50.29
    1-chlorotetradecane 30.57
    n-nonane 26.59
    undecane 21.14
    tert-butylcyclohexane 16.1
    cyclooctane 35.75
    cyclopentanol 272.86
    tetrahydropyran 254.11
    tert-amyl methyl ether 167.96
    2,5,8-trioxanonane 355.26
    1-hexene 81.11
    2-isopropoxyethanol 290.75
    2,2,2-trifluoroethanol 219.01
    methyl butyrate 138.73

    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