Sodium Silicate

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  • Identifiers

    CAS number
    1344-09-8

    Molecular formula
    Na2O3Si

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

    Safety labels

    Corrosive
    Corrosive

    Irritant
    Irritant

  • Odor profile

    Fragrance
    Odorless 81.66%
    Sour 25.29%
    Sharp 18.16%
    Sweet 17.41%
    Clean 17.01%
    Milky 13.4%
    Winey 13.25%
    Buttery 13.22%
    Creamy 12.8%
    Caramellic 12.71%

     

    Flavor
    Odorless 63.82%
    Sour 35.12%
    Acidic 21.07%
    Mousy 21.06%
    Formyl 20.87%
    Vinegar 20.47%
    Very mild 20.35%
    Soy 19.96%
    Sharp 19.81%
    Phenolic 19.38%

     

    Odor impact est.
    High

  • Properties

    pKa est.
    -4.76 (strong acid)

    Molecular weight
    122.063 g/mol

    Melting point expt.

    • 1089 °C
    • MELTING POINT: 48 °C IN WATER OF CRYSTALLIZATION; HEAT OF HYDRATION: -24.15 KCAL/MOLE; EFFLORESCENT; ORTHORHOMBIC BIPYRAMIDAL PLATELETS /NONAHYDRATE/

    Boiling point

    • BOILING POINT: 100 °C -6H20 /NONAHYDRATE/

    Flash point

    • 31.4 ˚C est.

    Solubility expt.

    • VERY SOL IN COLD & HOT WATER; SOLUBLE IN DILUTE SODIUM HYDROXIDE; INSOLUBLE IN ALCOHOL, ACIDS /NONAHYDRATE/
    • SOL IN WATER; INSOL IN ALCOHOL
    • INSOL IN ACIDS, SALT SOLN
    • In commerce mole ratios of SiO2 to Na2O vary from 1.5 to 3.3. ... The higher the ratio (e.g., the less sodium) the lower the solubility and alkalinity.
    • VERY SLIGHTLY SOL OR ALMOST INSOL IN COLD WATER; LESS READILY SOL IN LARGE AMT OF WATER THAN IN SMALL AMT; ANHYD DISSOLVE WITH MORE DIFFICULTY THAN HYDRATE IN WATER
    • GLASS FORM SOL IN STEAM UNDER PRESSURE; PARTIALLY MISCIBLE WITH PRIMARY ALC & KETONES; MISCIBLE WITH SOME POLYHYDRIC ALC
    • INSOL IN ALC, POTASSIUM, & SODIUM SALTS
    • BROUGHT INTO SOLN BY HEATING WITH WATER UNDER PRESSURE; SILICATES CONTAINING MORE SODIUM DISSOLVE MORE READILY
    • Solubility in water at 20 °C: miscible

  • Synonyms

    • SODIUM SILICATE
    • Waterglass
    • Sodium siliconate
    • Sodium sesquisilicate
    • Sodium silicate glass
    • Sodium water glass
    • Britesil
    • Carsil
    • Dryseq
    • Sikalon
    • Silican
    • Soluble glass
    • Agrosil S
    • Agrosil LR
    • Portil A
    • Silica E
    • Silica K
    • Silica N
    • Silica R
    • Pyramid 1
    • Pyramid 8
    • Carsil (silicate)
    • Britesil H 20
    • Britesil H 24
    • Dupont 26
    • Metso 99
    • Caswell No. 792
    • as Bond 1001
    • 49FG
    • L 96 (salt)
    • DP 222
    • EPA Pesticide Chemical Code 072603
    • CHEBI:60720
    • IJF18F77L3
    • SODIUM SILICON OXIDE (NA2SIO3)
    • DTXSID9029647
    • RefChem:6248
    • SILICON SODIUM OXIDE
    • SODIUM BETA-SILICATE
    • HK 30
    • SP 33
    • 215-687-4
    • 1344-09-8
    • Silicic acid, sodium salt
    • Star
    • Sodium metasilicate
    • 6834-92-0
    • Disodium metasilicate
    • Water glass
    • Metso pentabead 20
    • Metso beads 2048
    • Sodium silicate (Na2SiO3)
    • Sodium metasilicate, anhydrous
    • Sodium metasilicate (Na2SiO3)
    • Silicic acid (H2SiO3), disodium salt
    • disodium;dioxido(oxo)silane
    • disodium oxosilanebis(olate)
    • MFCD00003492
    • Silicic acid (H2SiO3), disodium salt, pentahydrate (8CI,9CI)
    • disodium oxosilanediolate
    • s15025
    • Crystamet
    • Orthosil
    • 052612U92L
    • Silicic acid (H2SiO3), sodium salt (1:2)
    • Simet A
    • Sodium metasilicate, puriss.
    • Metso beads, drymet
    • Disodium monosilicate
    • Metso 20
    • HK 30 (van)
    • HSDB 753
    • HSDB 5028
    • EINECS 215-687-4
    • EINECS 229-912-9
    • Silicic acid, disodium salt
    • UNII-IJF18F77L3
    • N 38
    • Q 70
    • UNII-052612U92L
    • sodium meta-silicate
    • Sodium silicon oxide
    • Na2O3Si
    • Silicic acid (H2SiO3) , disodium salt
    • Epitope ID:158534
    • EC 215-687-4
    • EC 229-912-9
    • SCHEMBL17236
    • B-W
    • DTXSID7029669
    • SODIUM METASILICATE [MI]
    • SODIUM METASILICATE [HSDB]
    • SODIUM METASILICATE [WHO-DD]
    • AKOS024429002
    • Silicic acid (CH2SiO3), disodium salt
    • 84992-49-4
    • NS00074479
    • F545156
    • Q425397
    • Sodium trisilicate, >=18% Na (as Na2O) basis, >=60% Si (as SiO2) basis, powder
    • 229-912-9
    • 1344-09-8

  • Applications

    Sodium Silicate (CAS 1344-09-8) is used as a binder and stabilizer across a range of industrial material systems: as a binder for foundry sand molds in metal casting; as a binder for cement and refractory materials; as a binder for silicate paints and protective coatings; in cleaning formulations as an alkaline builder and corrosion inhibitor for metals; as a binder and strength booster for paper and paper coatings in the papermaking and packaging sector; and for pH control, silica stabilization, and corrosion control in industrial water and cooling-water systems.

    gpt-5-nano

  • Solubility @25˚C

    Solvent Solubility (g/L)
    ethanol 684.12
    methanol 1042.76
    isopropanol 578.29
    water 435.14
    ethyl acetate 132.74
    n-propanol 428.75
    acetone 442.26
    n-butanol 374.13
    acetonitrile 240.57
    DMF 1267.2
    toluene 59.08
    isobutanol 267.73
    1,4-dioxane 314.41
    methyl acetate 163.82
    THF 573.01
    2-butanone 219.28
    n-pentanol 242.38
    sec-butanol 365.66
    n-hexane 43.47
    ethylene glycol 563.4
    NMP 415.49
    cyclohexane 40.92
    DMSO 1275.56
    n-butyl acetate 69.89
    n-octanol 139.78
    chloroform 138.84
    n-propyl acetate 89.59
    acetic acid 304.81
    dichloromethane 179.91
    cyclohexanone 145.77
    propylene glycol 375.02
    isopropyl acetate 99.15
    DMAc 593.34
    2-ethoxyethanol 432.92
    isopentanol 249.14
    n-heptane 39.96
    ethyl formate 161.75
    1,2-dichloroethane 174.12
    n-hexanol 188.75
    2-methoxyethanol 912.61
    isobutyl acetate 47.78
    tetrachloromethane 52.99
    n-pentyl acetate 83.47
    transcutol 331.34
    n-heptanol 141.58
    ethylbenzene 36.1
    MIBK 135.99
    2-propoxyethanol 358.15
    tert-butanol 605.02
    MTBE 263.51
    2-butoxyethanol 237.97
    propionic acid 189.42
    o-xylene 54.68
    formic acid 467.97
    diethyl ether 316.15
    m-xylene 55.99
    p-xylene 37.81
    chlorobenzene 45.63
    dimethyl carbonate 152.01
    n-octane 23.65
    formamide 619.07
    cyclopentanone 236.51
    2-pentanone 219.84
    anisole 101.0
    cyclopentyl methyl ether 220.31
    gamma-butyrolactone 226.29
    1-methoxy-2-propanol 611.83
    pyridine 152.98
    3-pentanone 142.7
    furfural 227.67
    n-dodecane 19.96
    diethylene glycol 450.06
    diisopropyl ether 100.27
    tert-amyl alcohol 372.17
    acetylacetone 160.76
    n-hexadecane 20.59
    acetophenone 79.51
    methyl propionate 165.59
    isopentyl acetate 55.53
    trichloroethylene 147.39
    n-nonanol 123.63
    cyclohexanol 207.99
    benzyl alcohol 115.92
    2-ethylhexanol 82.94
    isooctanol 98.34
    dipropyl ether 127.74
    1,2-dichlorobenzene 46.06
    ethyl lactate 97.51
    propylene carbonate 99.21
    n-methylformamide 567.21
    2-pentanol 296.58
    n-pentane 82.79
    1-propoxy-2-propanol 231.38
    1-methoxy-2-propyl acetate 93.77
    2-(2-methoxypropoxy) propanol 139.97
    mesitylene 44.66
    ε-caprolactone 116.41
    p-cymene 32.0
    epichlorohydrin 271.42
    1,1,1-trichloroethane 86.67
    2-aminoethanol 552.24
    morpholine-4-carbaldehyde 405.49
    sulfolane 316.74
    2,2,4-trimethylpentane 27.04
    2-methyltetrahydrofuran 274.97
    n-hexyl acetate 97.25
    isooctane 26.25
    2-(2-butoxyethoxy)ethanol 217.58
    sec-butyl acetate 55.41
    tert-butyl acetate 114.06
    decalin 16.71
    glycerin 538.01
    diglyme 316.94
    acrylic acid 184.76
    isopropyl myristate 55.95
    n-butyric acid 181.66
    acetyl acetate 65.49
    di(2-ethylhexyl) phthalate 49.17
    ethyl propionate 87.94
    nitromethane 378.48
    1,2-diethoxyethane 136.95
    benzonitrile 69.93
    trioctyl phosphate 51.21
    1-bromopropane 127.76
    gamma-valerolactone 270.76
    n-decanol 99.55
    triethyl phosphate 40.76
    4-methyl-2-pentanol 151.28
    propionitrile 169.68
    vinylene carbonate 91.01
    1,1,2-trichlorotrifluoroethane 232.65
    DMS 62.38
    cumene 31.77
    2-octanol 114.41
    2-hexanone 111.49
    octyl acetate 73.58
    limonene 47.18
    1,2-dimethoxyethane 479.92
    ethyl orthosilicate 42.98
    tributyl phosphate 45.39
    diacetone alcohol 212.9
    N,N-dimethylaniline 107.81
    acrylonitrile 189.71
    aniline 120.67
    1,3-propanediol 540.57
    bromobenzene 35.58
    dibromomethane 138.63
    1,1,2,2-tetrachloroethane 151.31
    2-methyl-cyclohexyl acetate 48.02
    tetrabutyl urea 76.49
    diisobutyl methanol 68.06
    2-phenylethanol 95.15
    styrene 40.6
    dioctyl adipate 61.09
    dimethyl sulfate 227.08
    ethyl butyrate 61.07
    methyl lactate 193.9
    butyl lactate 85.32
    diethyl carbonate 41.48
    propanediol butyl ether 203.4
    triethyl orthoformate 52.73
    p-tert-butyltoluene 36.19
    methyl 4-tert-butylbenzoate 106.07
    morpholine 395.45
    tert-butylamine 364.19
    n-dodecanol 81.01
    dimethoxymethane 675.31
    ethylene carbonate 83.21
    cyrene 119.44
    2-ethoxyethyl acetate 93.96
    2-ethylhexyl acetate 43.65
    1,2,4-trichlorobenzene 52.08
    4-methylpyridine 140.53
    dibutyl ether 88.0
    2,6-dimethyl-4-heptanol 68.06
    DEF 282.05
    dimethyl isosorbide 156.58
    tetrachloroethylene 127.64
    eugenol 131.11
    triacetin 73.48
    span 80 132.19
    1,4-butanediol 266.09
    1,1-dichloroethane 135.82
    2-methyl-1-pentanol 154.85
    methyl formate 376.05
    2-methyl-1-butanol 224.55
    n-decane 28.43
    butyronitrile 163.04
    3,7-dimethyl-1-octanol 88.93
    1-chlorooctane 62.65
    1-chlorotetradecane 32.54
    n-nonane 28.25
    undecane 23.31
    tert-butylcyclohexane 17.99
    cyclooctane 22.21
    cyclopentanol 273.24
    tetrahydropyran 221.8
    tert-amyl methyl ether 210.01
    2,5,8-trioxanonane 241.5
    1-hexene 85.74
    2-isopropoxyethanol 265.95
    2,2,2-trifluoroethanol 190.98
    methyl butyrate 108.63

    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