Sodium aluminate

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  • Identifiers

    CAS number
    1302-42-7

    Molecular formula
    AlNaO2

    SMILES
    O=[Al-]=O.[Na+]

    Safety labels

    Oxidizer
    Oxidizer

    Corrosive
    Corrosive

  • Odor profile

    Fragrance
    Odorless 93.76%
    Sharp 20.88%
    Sour 20.87%
    Burnt 19.73%
    Pungent 18.87%
    Bitter 13.89%
    Caramellic 12.25%
    Clean 10.57%
    Ethereal 9.86%
    Aromatic 9.36%

     

    Flavor
    Odorless 63.77%
    Bitter 47.65%
    Pungent 27.05%
    Formyl 25.99%
    Vinegar 25.46%
    Mustard 23.17%
    Rotten 23.02%
    Mousy 19.74%
    Sulfur 19.71%
    Nitrile 19.26%

     

  • Properties

    pKa est.
    -8.0 (strong acid)

    Molecular weight
    81.97 g/mol

    Melting point expt.

    • 1650 °C

    Flash point

    • -52.92 ˚C est.

    Solubility expt.

    • SOL IN WATER; INSOL IN ALCOHOL
    • Solubility in water: very good

  • Synonyms

    • SODIUM ALUMINATE
    • 1302-42-7
    • Sodium metaaluminate
    • Aluminium sodium dioxide
    • Aluminate, sodium
    • Sodium aluminum oxide (NaAlO2)
    • Sodium aluminum dioxide
    • Sodium aluminate (NaAlO2)
    • Aluminate (alo21-), sodium
    • Sodium aluminate (Na2Al2O4)
    • Sodium metaaluminate (NaAlO2)
    • DTXSID3051206
    • 2VMT26903W
    • Aluminum sodium oxide (Al2Na2O4)
    • 215-100-1
    • RefChem:6229
    • SODIUM ALUMANOYLOLATE
    • DTXCID5021594
    • ALUMINUM SODIUM OXIDE (ALNAO2)
    • 923-596-2
    • Aluminate (AlO21-), sodium (1:1)
    • ALUMINUM SODIUM OXIDE
    • 11138-49-1
    • Sodium aluminum oxide
    • Dynaflock L
    • Monofrax H
    • Alumina-C
    • sodium;dioxoalumanuide
    • Torganit
    • Maxifloc 8010
    • Nalco 680
    • VSA 45
    • EINECS 234-391-6
    • UN1819
    • UN2812
    • sodium dioxoalumanuide
    • Sodium aluminate, solid
    • J 242
    • EC 234-391-6
    • Sodium aluminate, solid [UN2812] [Corrosive]
    • UNII-2VMT26903W
    • SCHEMBL1092451
    • HSDB 5023
    • EINECS 215-100-1
    • FS176261
    • NS00074454
    • Aluminum sodium oxide and Sodium aluminum oxide
    • EC 215-100-1
    • Q411155
    • 1302-42-7

  • Applications

    Sodium aluminate (CAS 1302-42-7) is used in several industrial applications as a source of aluminate species and as a basic coagulant in water treatment; as a coagulant aid, it promotes formation of aluminum hydroxide flocs to remove suspended solids and color from municipal and industrial waters. In construction, it serves as a cement and concrete additive, acting as an accelerator to speed early strength development and providing aluminum for geopolymers and alumina-rich cement formulations. It is employed in chemical and materials processing as a catalyst precursor or alumina source for aluminum-containing catalysts and zeolites, and in the preparation of advanced ceramics and geopolymers. Its use is typically governed by formulation and regulatory limits.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 332.94
    methanol 424.82
    isopropanol 267.28
    water 39.04
    ethyl acetate 115.28
    n-propanol 226.6
    acetone 262.85
    n-butanol 203.27
    acetonitrile 178.14
    DMF 662.0
    toluene 72.03
    isobutanol 150.73
    1,4-dioxane 240.9
    methyl acetate 127.06
    THF 390.2
    2-butanone 153.35
    n-pentanol 137.94
    sec-butanol 197.19
    n-hexane 58.0
    ethylene glycol 179.7
    NMP 348.06
    cyclohexane 59.34
    DMSO 592.88
    n-butyl acetate 72.64
    n-octanol 104.22
    chloroform 217.59
    n-propyl acetate 72.57
    acetic acid 208.14
    dichloromethane 215.95
    cyclohexanone 141.85
    propylene glycol 145.04
    isopropyl acetate 80.78
    DMAc 364.36
    2-ethoxyethanol 201.71
    isopentanol 143.98
    n-heptane 47.91
    ethyl formate 106.16
    1,2-dichloroethane 164.92
    n-hexanol 129.6
    2-methoxyethanol 398.69
    isobutyl acetate 45.76
    tetrachloromethane 79.71
    n-pentyl acetate 77.56
    transcutol 248.34
    n-heptanol 100.51
    ethylbenzene 43.28
    MIBK 96.53
    2-propoxyethanol 204.12
    tert-butanol 279.49
    MTBE 167.77
    2-butoxyethanol 150.6
    propionic acid 137.99
    o-xylene 62.23
    formic acid 166.04
    diethyl ether 223.34
    m-xylene 61.36
    p-xylene 51.43
    chlorobenzene 70.52
    dimethyl carbonate 95.71
    n-octane 28.4
    formamide 245.57
    cyclopentanone 215.06
    2-pentanone 146.95
    anisole 92.0
    cyclopentyl methyl ether 172.96
    gamma-butyrolactone 214.95
    1-methoxy-2-propanol 305.34
    pyridine 157.63
    3-pentanone 112.82
    furfural 202.18
    n-dodecane 22.78
    diethylene glycol 209.82
    diisopropyl ether 80.62
    tert-amyl alcohol 200.18
    acetylacetone 127.46
    n-hexadecane 23.86
    acetophenone 76.16
    methyl propionate 124.06
    isopentyl acetate 61.43
    trichloroethylene 178.6
    n-nonanol 89.92
    cyclohexanol 142.43
    benzyl alcohol 81.14
    2-ethylhexanol 72.76
    isooctanol 74.27
    dipropyl ether 106.47
    1,2-dichlorobenzene 70.82
    ethyl lactate 62.27
    propylene carbonate 108.03
    n-methylformamide 284.73
    2-pentanol 161.44
    n-pentane 81.25
    1-propoxy-2-propanol 148.72
    1-methoxy-2-propyl acetate 82.65
    2-(2-methoxypropoxy) propanol 102.25
    mesitylene 50.55
    ε-caprolactone 118.18
    p-cymene 38.44
    epichlorohydrin 216.44
    1,1,1-trichloroethane 129.43
    2-aminoethanol 214.99
    morpholine-4-carbaldehyde 281.71
    sulfolane 277.71
    2,2,4-trimethylpentane 29.77
    2-methyltetrahydrofuran 223.12
    n-hexyl acetate 94.58
    isooctane 26.99
    2-(2-butoxyethoxy)ethanol 145.65
    sec-butyl acetate 51.29
    tert-butyl acetate 94.94
    decalin 26.07
    glycerin 206.47
    diglyme 233.49
    acrylic acid 127.88
    isopropyl myristate 50.4
    n-butyric acid 140.22
    acetyl acetate 62.99
    di(2-ethylhexyl) phthalate 44.74
    ethyl propionate 75.97
    nitromethane 251.87
    1,2-diethoxyethane 110.74
    benzonitrile 75.26
    trioctyl phosphate 42.95
    1-bromopropane 126.27
    gamma-valerolactone 221.15
    n-decanol 71.18
    triethyl phosphate 41.67
    4-methyl-2-pentanol 89.53
    propionitrile 132.33
    vinylene carbonate 92.75
    1,1,2-trichlorotrifluoroethane 179.68
    DMS 67.84
    cumene 36.0
    2-octanol 84.37
    2-hexanone 85.42
    octyl acetate 62.53
    limonene 53.53
    1,2-dimethoxyethane 274.5
    ethyl orthosilicate 44.75
    tributyl phosphate 42.7
    diacetone alcohol 141.36
    N,N-dimethylaniline 90.79
    acrylonitrile 157.95
    aniline 101.97
    1,3-propanediol 230.08
    bromobenzene 68.06
    dibromomethane 173.89
    1,1,2,2-tetrachloroethane 177.73
    2-methyl-cyclohexyl acetate 51.56
    tetrabutyl urea 66.77
    diisobutyl methanol 56.21
    2-phenylethanol 78.44
    styrene 55.3
    dioctyl adipate 59.74
    dimethyl sulfate 149.66
    ethyl butyrate 60.59
    methyl lactate 112.86
    butyl lactate 71.32
    diethyl carbonate 43.77
    propanediol butyl ether 135.64
    triethyl orthoformate 53.3
    p-tert-butyltoluene 42.18
    methyl 4-tert-butylbenzoate 95.96
    morpholine 283.13
    tert-butylamine 196.03
    n-dodecanol 57.8
    dimethoxymethane 344.78
    ethylene carbonate 80.04
    cyrene 90.14
    2-ethoxyethyl acetate 84.97
    2-ethylhexyl acetate 52.5
    1,2,4-trichlorobenzene 82.07
    4-methylpyridine 141.04
    dibutyl ether 81.13
    2,6-dimethyl-4-heptanol 56.21
    DEF 203.04
    dimethyl isosorbide 136.86
    tetrachloroethylene 144.88
    eugenol 100.98
    triacetin 76.21
    span 80 103.64
    1,4-butanediol 106.22
    1,1-dichloroethane 147.72
    2-methyl-1-pentanol 98.46
    methyl formate 191.04
    2-methyl-1-butanol 134.74
    n-decane 33.32
    butyronitrile 124.36
    3,7-dimethyl-1-octanol 71.65
    1-chlorooctane 64.99
    1-chlorotetradecane 35.41
    n-nonane 34.27
    undecane 26.69
    tert-butylcyclohexane 26.9
    cyclooctane 29.7
    cyclopentanol 183.82
    tetrahydropyran 200.35
    tert-amyl methyl ether 143.84
    2,5,8-trioxanonane 172.78
    1-hexene 90.4
    2-isopropoxyethanol 138.19
    2,2,2-trifluoroethanol 94.82
    methyl butyrate 91.95

    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