Concise etchant

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  • Identifiers

    CAS number
    116319-08-5

    Molecular formula
    H3O4P

    SMILES
    [H+].[H+].[H+].[O-]P(=O)([O-])[O-]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 95.52%
    Bitter 14.56%
    Clean 11.44%
    Sharp 11.12%
    Sour 9.58%
    Animal 8.85%
    Sweaty 8.68%
    Malty 8.42%
    Fishy 8.34%
    Pungent 7.61%

     

    Flavor
    Odorless 53.81%
    Vinegar 25.1%
    Rotten 24.33%
    Pungent 24.3%
    Sour 22.14%
    Formyl 21.84%
    Bland 21.8%
    Mousy 21.7%
    Decomposing cabbage 20.51%
    Soy 19.28%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    22.06 (strong base)

    Molecular weight
    97.995 g/mol

    Melting point expt.

    • 41.00 to 44.00 °C. @ 760.00 mm Hg

    Boiling point

    • 158.00 °C. @ 760.00 mm Hg

    Flash point

    • -96.1 ˚C est.

    Solubility expt.

    • 1000 mg/mL

  • Synonyms

    • HYDROXY-DIOXIDO-OXO-PHOSPHORANE
    • Concise etchant
    • AVOCADAMIDOPROPALKONIUM CHLORIDE
    • 5-Pyrimidinol, 4-methyl-, 1-oxide (9CI)
    • 116319-08-5
    • 124046-04-4
    • 149059-06-3
    • SCHEMBL436
    • 124046-04-4

  • Applications

    Concise etchant (CAS 116319-08-5) is used to remove oxide and passivation layers and to pattern metal and semiconductor surfaces in electronics and microfabrication; in metallography, it reveals grain structure in metals and alloys; it supports metal finishing and surface pretreatment to prepare substrates for plating or adhesion; it is employed in cleaning and degreasing steps as part of surface preparation; typical applications include etching copper on PCBs, etching metal features for microfabrication, metallographic specimen preparation, and surface analysis. Subject to local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 5.79
    methanol 6.59
    isopropanol 3.92
    water 0.11
    ethyl acetate 1.79
    n-propanol 4.25
    acetone 3.29
    n-butanol 3.7
    acetonitrile 2.72
    DMF 6.74
    toluene 0.45
    isobutanol 3.08
    1,4-dioxane 3.6
    methyl acetate 2.08
    THF 4.06
    2-butanone 2.32
    n-pentanol 2.41
    sec-butanol 3.28
    n-hexane 0.56
    ethylene glycol 2.91
    NMP 5.18
    cyclohexane 0.33
    DMSO 6.12
    n-butyl acetate 2.24
    n-octanol 1.83
    chloroform 2.49
    n-propyl acetate 1.24
    acetic acid 5.48
    dichloromethane 2.01
    cyclohexanone 2.82
    propylene glycol 3.01
    isopropyl acetate 1.06
    DMAc 3.48
    2-ethoxyethanol 2.66
    isopentanol 2.89
    n-heptane 0.46
    ethyl formate 1.41
    1,2-dichloroethane 1.39
    n-hexanol 3.91
    2-methoxyethanol 5.06
    isobutyl acetate 0.87
    tetrachloromethane 0.55
    n-pentyl acetate 1.11
    transcutol 8.53
    n-heptanol 1.7
    ethylbenzene 0.42
    MIBK 1.32
    2-propoxyethanol 4.28
    tert-butanol 4.41
    MTBE 2.35
    2-butoxyethanol 2.36
    propionic acid 3.72
    o-xylene 0.48
    formic acid 2.61
    diethyl ether 2.07
    m-xylene 0.47
    p-xylene 0.55
    chlorobenzene 0.86
    dimethyl carbonate 0.83
    n-octane 0.19
    formamide 2.56
    cyclopentanone 3.68
    2-pentanone 1.91
    anisole 1.12
    cyclopentyl methyl ether 2.12
    gamma-butyrolactone 4.33
    1-methoxy-2-propanol 3.71
    pyridine 1.85
    3-pentanone 1.35
    furfural 3.06
    n-dodecane 0.17
    diethylene glycol 3.47
    diisopropyl ether 0.68
    tert-amyl alcohol 3.45
    acetylacetone 1.57
    n-hexadecane 0.18
    acetophenone 1.04
    methyl propionate 1.78
    isopentyl acetate 1.9
    trichloroethylene 2.43
    n-nonanol 1.47
    cyclohexanol 2.24
    benzyl alcohol 1.1
    2-ethylhexanol 2.0
    isooctanol 1.33
    dipropyl ether 1.67
    1,2-dichlorobenzene 0.87
    ethyl lactate 0.97
    propylene carbonate 2.23
    n-methylformamide 3.59
    2-pentanol 2.46
    n-pentane 0.46
    1-propoxy-2-propanol 3.17
    1-methoxy-2-propyl acetate 1.73
    2-(2-methoxypropoxy) propanol 2.17
    mesitylene 0.38
    ε-caprolactone 2.47
    p-cymene 0.49
    epichlorohydrin 3.03
    1,1,1-trichloroethane 1.34
    2-aminoethanol 4.28
    morpholine-4-carbaldehyde 4.01
    sulfolane 5.26
    2,2,4-trimethylpentane 0.3
    2-methyltetrahydrofuran 3.4
    n-hexyl acetate 1.94
    isooctane 0.24
    2-(2-butoxyethoxy)ethanol 3.06
    sec-butyl acetate 0.82
    tert-butyl acetate 1.4
    decalin 0.25
    glycerin 3.44
    diglyme 4.16
    acrylic acid 3.47
    isopropyl myristate 0.77
    n-butyric acid 3.55
    acetyl acetate 0.99
    di(2-ethylhexyl) phthalate 0.84
    ethyl propionate 1.07
    nitromethane 4.81
    1,2-diethoxyethane 2.1
    benzonitrile 1.3
    trioctyl phosphate 0.73
    1-bromopropane 1.09
    gamma-valerolactone 3.94
    n-decanol 1.13
    triethyl phosphate 0.64
    4-methyl-2-pentanol 1.49
    propionitrile 2.15
    vinylene carbonate 1.79
    1,1,2-trichlorotrifluoroethane 2.81
    DMS 1.2
    cumene 0.42
    2-octanol 1.14
    2-hexanone 1.46
    octyl acetate 1.08
    limonene 0.86
    1,2-dimethoxyethane 3.26
    ethyl orthosilicate 0.65
    tributyl phosphate 0.85
    diacetone alcohol 2.36
    N,N-dimethylaniline 0.92
    acrylonitrile 2.69
    aniline 1.19
    1,3-propanediol 4.14
    bromobenzene 0.7
    dibromomethane 1.44
    1,1,2,2-tetrachloroethane 2.22
    2-methyl-cyclohexyl acetate 1.11
    tetrabutyl urea 1.11
    diisobutyl methanol 1.08
    2-phenylethanol 1.5
    styrene 0.51
    dioctyl adipate 1.02
    dimethyl sulfate 1.34
    ethyl butyrate 1.29
    methyl lactate 1.53
    butyl lactate 1.18
    diethyl carbonate 0.82
    propanediol butyl ether 2.63
    triethyl orthoformate 0.92
    p-tert-butyltoluene 0.51
    methyl 4-tert-butylbenzoate 1.35
    morpholine 4.34
    tert-butylamine 2.92
    n-dodecanol 0.86
    dimethoxymethane 2.45
    ethylene carbonate 1.4
    cyrene 1.55
    2-ethoxyethyl acetate 1.4
    2-ethylhexyl acetate 1.42
    1,2,4-trichlorobenzene 1.05
    4-methylpyridine 1.82
    dibutyl ether 1.41
    2,6-dimethyl-4-heptanol 1.08
    DEF 2.54
    dimethyl isosorbide 2.61
    tetrachloroethylene 1.55
    eugenol 1.55
    triacetin 1.49
    span 80 2.1
    1,4-butanediol 1.82
    1,1-dichloroethane 1.54
    2-methyl-1-pentanol 2.11
    methyl formate 2.17
    2-methyl-1-butanol 2.82
    n-decane 0.26
    butyronitrile 2.14
    3,7-dimethyl-1-octanol 1.64
    1-chlorooctane 0.83
    1-chlorotetradecane 0.36
    n-nonane 0.27
    undecane 0.2
    tert-butylcyclohexane 0.31
    cyclooctane 0.14
    cyclopentanol 2.84
    tetrahydropyran 2.9
    tert-amyl methyl ether 1.78
    2,5,8-trioxanonane 3.05
    1-hexene 1.37
    2-isopropoxyethanol 1.95
    2,2,2-trifluoroethanol 1.56
    methyl butyrate 1.51

    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