metaphosphoric acid, (h6p6o18), calcium salt

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  • Identifiers

    CAS number
    10102-76-8

    Molecular formula
    Ca3O18P6

    SMILES
    [O-]P1(=O)OP(=O)(OP(=O)(OP(=O)(OP(=O)(OP(=O)(O1)[O-])[O-])[O-])[O-])[O-].[Ca+2].[Ca+2].[Ca+2]

    Safety labels

  • Odor profile

    Fragrance
    Odorless 81.14%
    Sweet 15.33%
    Clean 14.71%
    Sour 13.84%
    Sharp 11.8%
    Burnt 11.71%
    Ethereal 10.97%
    Nutty 10.61%
    Aromatic 9.91%
    Cooked 9.81%

     

    Flavor
    Odorless 44.09%
    Sour 22.88%
    Formyl 19.82%
    Bitter 19.57%
    Rotten 18.95%
    Mousy 18.83%
    Soy 18.57%
    Urine 18.49%
    Yeast 18.38%
    Stinky 18.33%

     

    Odor impact est.
    Low

  • Properties

    pKa est.
    -2.19 (strong acid)

    Molecular weight
    594.07 g/mol

    Flash point

    • 354.56 ˚C est.

  • Synonyms

    • Calcium hexametaphosphate
    • 10102-76-8
    • Metaphosphoric acid (H6P6O18), calcium salt
    • Metaphosphoric acid, (H6P6O18), calcium salt
    • DTXSID90143677
    • RefChem:811233
    • DTXCID5066168
    • SCHEMBL377918
    • NS00131885
    • Tricalcium 2,4,6,8,10,12-hexaoxo-2lambda~5~,4lambda~5~,6lambda~5~,8lambda~5~,10lambda~5~,12lambda~5~-cyclohexaphosphoxane-2,4,6,8,10,12-hexakis(olate)
    • 10102-76-8

  • Applications

    metaphosphoric acid, (h6p6o18), calcium salt, CAS number: 10102-76-8 is used primarily as a sequestering/chelating agent and scale inhibitor in aqueous formulations; in detergents and industrial cleaners it helps soften hard water and improve surfactant performance. It also acts as a pigment and filler dispersant in coatings, inks and polymer formulations, helping prevent sedimentation. In ceramic processing it serves as a deflocculant to improve slip stability; in some food-processing formulations it may function as a sequestrant or texture-modifying additive. Its polyphosphate structure can provide corrosion inhibition in cooling-water systems, and its use is governed by local regulations and formulation limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 382.54
    methanol 781.69
    isopropanol 213.53
    water 433.05
    ethyl acetate 334.67
    n-propanol 245.35
    acetone 588.63
    n-butanol 165.3
    acetonitrile 494.38
    DMF 2242.4
    toluene 82.47
    isobutanol 132.67
    1,4-dioxane 310.71
    methyl acetate 344.13
    THF 816.47
    2-butanone 304.76
    n-pentanol 108.69
    sec-butanol 135.46
    n-hexane 13.56
    ethylene glycol 447.91
    NMP 1411.02
    cyclohexane 11.06
    DMSO 1639.33
    n-butyl acetate 192.92
    n-octanol 86.32
    chloroform 202.87
    n-propyl acetate 262.89
    acetic acid 413.5
    dichloromethane 284.26
    cyclohexanone 200.44
    propylene glycol 419.48
    isopropyl acetate 211.11
    DMAc 1230.71
    2-ethoxyethanol 614.09
    isopentanol 95.85
    n-heptane 17.81
    ethyl formate 448.9
    1,2-dichloroethane 202.24
    n-hexanol 101.29
    2-methoxyethanol 1235.74
    isobutyl acetate 125.17
    tetrachloromethane 33.66
    n-pentyl acetate 145.79
    transcutol 673.04
    n-heptanol 78.08
    ethylbenzene 35.94
    MIBK 165.98
    2-propoxyethanol 753.01
    tert-butanol 179.13
    MTBE 114.48
    2-butoxyethanol 337.94
    propionic acid 290.55
    o-xylene 54.55
    formic acid 806.89
    diethyl ether 216.17
    m-xylene 71.26
    p-xylene 36.31
    chlorobenzene 66.63
    dimethyl carbonate 699.96
    n-octane 9.51
    formamide 1194.69
    cyclopentanone 564.1
    2-pentanone 316.64
    anisole 158.66
    cyclopentyl methyl ether 268.12
    gamma-butyrolactone 993.42
    1-methoxy-2-propanol 1057.44
    pyridine 274.35
    3-pentanone 226.55
    furfural 837.84
    n-dodecane 8.65
    diethylene glycol 814.18
    diisopropyl ether 59.58
    tert-amyl alcohol 114.61
    acetylacetone 479.83
    n-hexadecane 9.01
    acetophenone 174.83
    methyl propionate 497.39
    isopentyl acetate 108.49
    trichloroethylene 262.88
    n-nonanol 81.25
    cyclohexanol 77.46
    benzyl alcohol 136.7
    2-ethylhexanol 52.35
    isooctanol 49.53
    dipropyl ether 162.22
    1,2-dichlorobenzene 66.06
    ethyl lactate 401.93
    propylene carbonate 504.3
    n-methylformamide 1418.07
    2-pentanol 107.91
    n-pentane 21.95
    1-propoxy-2-propanol 521.25
    1-methoxy-2-propyl acetate 438.58
    2-(2-methoxypropoxy) propanol 335.96
    mesitylene 43.16
    ε-caprolactone 256.79
    p-cymene 36.57
    epichlorohydrin 678.66
    1,1,1-trichloroethane 89.96
    2-aminoethanol 482.73
    morpholine-4-carbaldehyde 1163.83
    sulfolane 967.76
    2,2,4-trimethylpentane 7.35
    2-methyltetrahydrofuran 257.0
    n-hexyl acetate 156.55
    isooctane 6.75
    2-(2-butoxyethoxy)ethanol 417.23
    sec-butyl acetate 117.44
    tert-butyl acetate 200.39
    decalin 5.96
    glycerin 728.67
    diglyme 595.24
    acrylic acid 394.36
    isopropyl myristate 69.49
    n-butyric acid 269.65
    acetyl acetate 215.34
    di(2-ethylhexyl) phthalate 82.14
    ethyl propionate 291.48
    nitromethane 1174.75
    1,2-diethoxyethane 232.45
    benzonitrile 137.33
    trioctyl phosphate 74.41
    1-bromopropane 99.68
    gamma-valerolactone 945.76
    n-decanol 65.09
    triethyl phosphate 111.37
    4-methyl-2-pentanol 62.07
    propionitrile 319.93
    vinylene carbonate 476.59
    1,1,2-trichlorotrifluoroethane 534.12
    DMS 242.75
    cumene 25.8
    2-octanol 54.38
    2-hexanone 167.18
    octyl acetate 102.33
    limonene 39.36
    1,2-dimethoxyethane 785.45
    ethyl orthosilicate 98.9
    tributyl phosphate 87.66
    diacetone alcohol 329.19
    N,N-dimethylaniline 144.4
    acrylonitrile 511.29
    aniline 145.08
    1,3-propanediol 402.95
    bromobenzene 53.19
    dibromomethane 156.74
    1,1,2,2-tetrachloroethane 200.05
    2-methyl-cyclohexyl acetate 96.46
    tetrabutyl urea 158.94
    diisobutyl methanol 41.55
    2-phenylethanol 134.05
    styrene 42.81
    dioctyl adipate 115.61
    dimethyl sulfate 887.13
    ethyl butyrate 193.79
    methyl lactate 784.01
    butyl lactate 251.22
    diethyl carbonate 155.36
    propanediol butyl ether 345.17
    triethyl orthoformate 161.55
    p-tert-butyltoluene 44.52
    methyl 4-tert-butylbenzoate 216.59
    morpholine 453.63
    tert-butylamine 99.66
    n-dodecanol 49.71
    dimethoxymethane 1657.07
    ethylene carbonate 354.34
    cyrene 443.62
    2-ethoxyethyl acetate 279.09
    2-ethylhexyl acetate 82.21
    1,2,4-trichlorobenzene 80.8
    4-methylpyridine 242.37
    dibutyl ether 78.44
    2,6-dimethyl-4-heptanol 41.55
    DEF 480.35
    dimethyl isosorbide 652.34
    tetrachloroethylene 126.98
    eugenol 319.47
    triacetin 238.28
    span 80 251.68
    1,4-butanediol 187.8
    1,1-dichloroethane 140.33
    2-methyl-1-pentanol 54.89
    methyl formate 1194.78
    2-methyl-1-butanol 97.44
    n-decane 12.7
    butyronitrile 235.42
    3,7-dimethyl-1-octanol 54.29
    1-chlorooctane 34.89
    1-chlorotetradecane 18.85
    n-nonane 11.58
    undecane 10.41
    tert-butylcyclohexane 6.55
    cyclooctane 7.56
    cyclopentanol 155.1
    tetrahydropyran 153.83
    tert-amyl methyl ether 116.25
    2,5,8-trioxanonane 491.55
    1-hexene 36.97
    2-isopropoxyethanol 319.53
    2,2,2-trifluoroethanol 390.62
    methyl butyrate 317.01

    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