Nepheline Syenite

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  • Identifiers

    CAS number
    37244-96-5

    Molecular formula
    Al2KNaO8Si2

    SMILES
    [O-][Si](=O)O[Al]=O.[O-][Si](=O)O[Al]=O.[Na+].[K+]

    Safety labels

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 81.67%
    Sour 26.34%
    Winey 17.53%
    Ethereal 17.34%
    Sharp 17.3%
    Clean 16.39%
    Burnt 15.64%
    Pungent 14.26%
    Sulfurous 13.64%
    Cooked 13.16%

     

    Flavor
    Odorless 58.9%
    Sour 34.48%
    Very mild 28.16%
    Nutty 22.94%
    Mild 22.37%
    Yeast 21.49%
    Caramellic 21.07%
    Formyl 20.7%
    Mousy 19.89%
    Urine 19.49%

     

  • Properties

    pKa est.
    -0.05 (strong acid)

    Molecular weight
    300.22 g/mol

    Flash point

    • -9.41 ˚C est.

  • Synonyms

    • NEPHELINE SYENITE
    • 37244-96-5
    • RefChem:832363
    • DTXSID70107797
    • 609-369-8
    • potassium;sodium;oxido-oxo-oxoalumanyloxysilane
    • SCHEMBL29355801
    • 37244-96-5

  • Applications

    Nepheline Syenite (CAS 37244-96-5) is primarily used as a fluxing agent in glass and ceramic formulations, supplying alkali (Na2O) and alumina to lower melting temperatures and improve glaze smoothness and durability. It serves as a raw material for ceramic bodies, porcelain, tiles and sanitaryware, contributing alumina and alkali to enhance firing stability and mechanical properties. The material is also used as a white filler and processing aid in coatings, paints, plastics and adhesives, helping adjust rheology, brightness and dimensional stability. In addition, Nepheline Syenite can be milled into fillers for paper and other composites to reduce cost and modify optical properties. Its application scope, however, depends on source quality and local regulations, and formulation-specific limits apply.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 1312.3
    methanol 2108.58
    isopropanol 1070.75
    water 1321.25
    ethyl acetate 234.51
    n-propanol 855.65
    acetone 770.3
    n-butanol 729.52
    acetonitrile 395.2
    DMF 2434.8
    toluene 72.28
    isobutanol 571.51
    1,4-dioxane 610.95
    methyl acetate 300.24
    THF 1343.67
    2-butanone 383.41
    n-pentanol 519.98
    sec-butanol 701.72
    n-hexane 43.05
    ethylene glycol 1233.78
    NMP 871.89
    cyclohexane 29.59
    DMSO 1462.47
    n-butyl acetate 116.06
    n-octanol 206.53
    chloroform 176.67
    n-propyl acetate 202.94
    acetic acid 574.83
    dichloromethane 206.64
    cyclohexanone 251.77
    propylene glycol 1011.41
    isopropyl acetate 184.26
    DMAc 1231.41
    2-ethoxyethanol 1114.68
    isopentanol 514.73
    n-heptane 42.01
    ethyl formate 300.99
    1,2-dichloroethane 174.35
    n-hexanol 333.71
    2-methoxyethanol 2055.87
    isobutyl acetate 130.14
    tetrachloromethane 65.08
    n-pentyl acetate 110.47
    transcutol 697.83
    n-heptanol 234.77
    ethylbenzene 52.87
    MIBK 264.67
    2-propoxyethanol 840.22
    tert-butanol 1043.97
    MTBE 360.21
    2-butoxyethanol 495.02
    propionic acid 342.64
    o-xylene 75.86
    formic acid 896.73
    diethyl ether 422.53
    m-xylene 82.7
    p-xylene 56.47
    chlorobenzene 52.78
    dimethyl carbonate 369.34
    n-octane 19.08
    formamide 1194.37
    cyclopentanone 500.07
    2-pentanone 391.96
    anisole 209.05
    cyclopentyl methyl ether 458.41
    gamma-butyrolactone 487.04
    1-methoxy-2-propanol 1532.03
    pyridine 212.88
    3-pentanone 234.89
    furfural 424.39
    n-dodecane 17.31
    diethylene glycol 1053.59
    diisopropyl ether 136.23
    tert-amyl alcohol 658.37
    acetylacetone 318.45
    n-hexadecane 17.55
    acetophenone 168.35
    methyl propionate 329.51
    isopentyl acetate 97.23
    trichloroethylene 181.07
    n-nonanol 181.93
    cyclohexanol 345.27
    benzyl alcohol 225.97
    2-ethylhexanol 143.77
    isooctanol 163.32
    dipropyl ether 207.65
    1,2-dichlorobenzene 53.05
    ethyl lactate 266.94
    propylene carbonate 233.91
    n-methylformamide 1198.08
    2-pentanol 544.73
    n-pentane 76.71
    1-propoxy-2-propanol 492.29
    1-methoxy-2-propyl acetate 205.1
    2-(2-methoxypropoxy) propanol 348.01
    mesitylene 62.37
    ε-caprolactone 222.22
    p-cymene 47.65
    epichlorohydrin 525.99
    1,1,1-trichloroethane 110.66
    2-aminoethanol 1360.85
    morpholine-4-carbaldehyde 900.74
    sulfolane 536.28
    2,2,4-trimethylpentane 32.02
    2-methyltetrahydrofuran 544.75
    n-hexyl acetate 146.09
    isooctane 30.99
    2-(2-butoxyethoxy)ethanol 463.92
    sec-butyl acetate 131.04
    tert-butyl acetate 212.42
    decalin 20.28
    glycerin 1452.85
    diglyme 666.61
    acrylic acid 338.32
    isopropyl myristate 80.94
    n-butyric acid 329.2
    acetyl acetate 135.08
    di(2-ethylhexyl) phthalate 87.62
    ethyl propionate 208.56
    nitromethane 726.8
    1,2-diethoxyethane 199.01
    benzonitrile 119.41
    trioctyl phosphate 84.41
    1-bromopropane 119.03
    gamma-valerolactone 598.21
    n-decanol 144.73
    triethyl phosphate 84.24
    4-methyl-2-pentanol 294.25
    propionitrile 287.28
    vinylene carbonate 191.16
    1,1,2-trichlorotrifluoroethane 493.89
    DMS 119.03
    cumene 50.39
    2-octanol 157.77
    2-hexanone 244.83
    octyl acetate 110.2
    limonene 64.34
    1,2-dimethoxyethane 1073.25
    ethyl orthosilicate 86.36
    tributyl phosphate 78.2
    diacetone alcohol 443.3
    N,N-dimethylaniline 225.89
    acrylonitrile 321.11
    aniline 196.31
    1,3-propanediol 1174.34
    bromobenzene 36.04
    dibromomethane 122.79
    1,1,2,2-tetrachloroethane 190.97
    2-methyl-cyclohexyl acetate 103.24
    tetrabutyl urea 136.88
    diisobutyl methanol 103.03
    2-phenylethanol 185.73
    styrene 55.47
    dioctyl adipate 109.23
    dimethyl sulfate 448.08
    ethyl butyrate 127.45
    methyl lactate 478.06
    butyl lactate 155.16
    diethyl carbonate 89.41
    propanediol butyl ether 467.53
    triethyl orthoformate 110.52
    p-tert-butyltoluene 55.65
    methyl 4-tert-butylbenzoate 206.35
    morpholine 873.17
    tert-butylamine 594.21
    n-dodecanol 116.52
    dimethoxymethane 1417.71
    ethylene carbonate 179.76
    cyrene 375.05
    2-ethoxyethyl acetate 143.76
    2-ethylhexyl acetate 73.26
    1,2,4-trichlorobenzene 69.76
    4-methylpyridine 221.78
    dibutyl ether 111.34
    2,6-dimethyl-4-heptanol 103.03
    DEF 511.7
    dimethyl isosorbide 416.21
    tetrachloroethylene 137.79
    eugenol 284.69
    triacetin 141.04
    span 80 263.22
    1,4-butanediol 631.82
    1,1-dichloroethane 151.3
    2-methyl-1-pentanol 330.69
    methyl formate 770.89
    2-methyl-1-butanol 477.0
    n-decane 24.24
    butyronitrile 283.85
    3,7-dimethyl-1-octanol 143.69
    1-chlorooctane 63.97
    1-chlorotetradecane 33.9
    n-nonane 23.14
    undecane 19.72
    tert-butylcyclohexane 24.86
    cyclooctane 17.78
    cyclopentanol 557.09
    tetrahydropyran 389.23
    tert-amyl methyl ether 333.35
    2,5,8-trioxanonane 517.62
    1-hexene 108.19
    2-isopropoxyethanol 694.71
    2,2,2-trifluoroethanol 436.52
    methyl butyrate 251.23

    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