Registration Dossier

Identification

Chemical structure
Display Name:
Silicic acid, aluminum magnesium sodium salt
EC Number:
234-919-5
EC Name:
Silicic acid, aluminum magnesium sodium salt
CAS Number:
12040-43-6
Molecular formula:
Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
IUPAC Name:
Silicic acid, aluminum magnesium sodium salt

Type of Substance

Composition:
UVCB
Origin:
inorganic

Substance Identifiers open all close all

  • 12040-43-6
  • Durafill (R) 200
  • HYDREX®
  • ZEOLEX®
  • ZEOPOL®
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Silicic acid, aluminum magnesium sodium salt
    EC Number:
    234-919-5
    EC Name:
    Silicic acid, aluminum magnesium sodium salt
    CAS Number:
    12040-43-6
    Molecular formula:
    Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
    IUPAC Name:
    Silicic acid, aluminum magnesium sodium salt

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Silicic acid, aluminium magnesium sodium salt (SMAS), precipitated

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    other: 3-dimensional branched fractal aggregates
    Pure shape:
    yes
    Typical composition:
    >= 99 %
    Range:
    > 50 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D90
    Typical value:
    ca. 120 μm
    Range:
    > 55 - < 130 μm
    Percentile:
    D50
    Typical value:
    ca. 90 μm
    Range:
    > 55 - < 130 μm
    Percentile:
    D10
    Typical value:
    ca. 66 μm
    Range:
    > 55 - < 130 μm
    Fraction of constituent particles in the size range 1-100 nm:
    > 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    amorphous
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 60 m²/g
    Range of specific surface area:
    > 25 - < 150 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Silicic acid, aluminum magnesium sodium salt
    EC Number:
    234-919-5
    EC Name:
    Silicic acid, aluminum magnesium sodium salt
    CAS Number:
    12040-43-6
    Molecular formula:
    Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
    IUPAC Name:
    Silicic acid, aluminum magnesium sodium salt

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Silicic acid, aluminium magnesium sodium salt (SMAS), precipitated

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    other: 3-dimensional branched fractal aggregates
    Pure shape:
    yes
    Typical composition:
    >= 99 %
    Range:
    > 50 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Percentileopen allclose all
    Percentile:
    D90
    Typical value:
    ca. 120 μm
    Range:
    > 55 - < 130 μm
    Percentile:
    D50
    Typical value:
    ca. 90 μm
    Range:
    > 55 - < 130 μm
    Percentile:
    D10
    Typical value:
    ca. 66 μm
    Range:
    > 55 - < 130 μm
    Fraction of constituent particles in the size range 1-100 nm:
    > 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    amorphous
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 60 m²/g
    Range of specific surface area:
    > 25 - < 150 m²/g
    Skeletal density:
    g/cm³

    Surface functionalisation / treatment

    Surface treatment applied:
    no

    Legal Entity Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Silicic acid, aluminum magnesium sodium salt
    EC Number:
    234-919-5
    EC Name:
    Silicic acid, aluminum magnesium sodium salt
    CAS Number:
    12040-43-6
    Molecular formula:
    Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
    IUPAC Name:
    Silicic acid, aluminum magnesium sodium salt
    Constituent 2
    Chemical structure
    Reference substance name:
    Sodium sulphate
    EC Number:
    231-820-9
    EC Name:
    Sodium sulphate
    CAS Number:
    7757-82-6
    Molecular formula:
    H2O4S.2Na
    IUPAC Name:
    disodium sulfate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Silicic acid, aluminium magnesium sodium salt (SMAS), precipitated

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    other: 3-dimensional branched fractal aggregates
    Pure shape:
    yes
    Typical composition:
    >= 99 %
    Range:
    >= 99 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Remarks:
    3-dimensional branched fractal aggregates.
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    66 μm
    Range:
    >= 63 - <= 125 μm
    Percentile:
    D50
    Typical value:
    92 μm
    Range:
    >= 63 - <= 125 μm
    Percentile:
    D90
    Typical value:
    119 μm
    Range:
    >= 63 - <= 125 μm
    Additional information:
    The particle forming mechanism for each manufacturing process starts with the formation of liquid nuclei that grow to constituent particles that coagulate to aggregates and solidify. Constituent particles are therefore spherical in nature while aggregates (and agglomerates) show a high fractal structure.
    Fraction of constituent particles in the size range 1-100 nm:
    > 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    amorphous
    Name:
    amorphous
    Pure structure:
    yes
    Range:
    > 99.7 - <= 100 %
    Description:
    not crystalline according to TEM and XRD, see sections 1.4 and 4.5

    Specific surface area

    Typical specific surface area:
    57.9 m²/g
    Range of specific surface area:
    >= 55 - <= 115 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Silicic acid, aluminum magnesium sodium salt
    EC Number:
    234-919-5
    EC Name:
    Silicic acid, aluminum magnesium sodium salt
    CAS Number:
    12040-43-6
    Molecular formula:
    Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
    IUPAC Name:
    Silicic acid, aluminum magnesium sodium salt
    Constituent 2
    Chemical structure
    Reference substance name:
    Sodium sulphate
    EC Number:
    231-820-9
    EC Name:
    Sodium sulphate
    CAS Number:
    7757-82-6
    Molecular formula:
    H2O4S.2Na
    IUPAC Name:
    disodium sulfate

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Silicic acid, aluminium magnesium sodium salt (SMAS), precipitated

    Shape

    Shape description
    Shape category:
    spheroidal
    Shape:
    other: 3-dimensional branched fractal aggregates
    Pure shape:
    yes
    Typical composition:
    >= 99 %
    Range:
    >= 99 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    spheroidal
    Remarks:
    3-dimensional branched fractal aggregates.
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    66 μm
    Range:
    >= 63 - <= 125 μm
    Percentile:
    D50
    Typical value:
    92 μm
    Range:
    >= 63 - <= 125 μm
    Percentile:
    D90
    Typical value:
    119 μm
    Range:
    >= 63 - <= 125 μm
    Additional information:
    The particle forming mechanism for each manufacturing process starts with the formation of liquid nuclei that grow to constituent particles that coagulate to aggregates and solidify. Constituent particles are therefore spherical in nature while aggregates (and agglomerates) show a high fractal structure.
    Fraction of constituent particles in the size range 1-100 nm:
    > 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    amorphous
    Name:
    amorphous
    Pure structure:
    yes
    Range:
    > 99.7 - <= 100 %
    Description:
    not crystalline according to TEM and XRD, see sections 1.4 and 4.5

    Specific surface area

    Typical specific surface area:
    57.9 m²/g
    Range of specific surface area:
    >= 55 - <= 115 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no


    Constituent 1
    Chemical structure
    Reference substance name:
    Silicic acid, aluminum magnesium sodium salt
    EC Number:
    234-919-5
    EC Name:
    Silicic acid, aluminum magnesium sodium salt
    CAS Number:
    12040-43-6
    Molecular formula:
    Na(0.017-1.739)Mg(0.008-0.823)Al(0.002-0.2473)SiO(2.018-3.837)
    IUPAC Name:
    Silicic acid, aluminum magnesium sodium salt

    Composition(s) generated upon use

    Other types of composition(s)