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Identification

Chemical structure
Display Name:
Iron hydroxide oxide yellow
EC Number:
257-098-5
EC Name:
Iron hydroxide oxide yellow
CAS Number:
51274-00-1
Molecular formula:
Fe(OH)O
IUPAC Name:
Iron hydroxide oxide

Type of Substance

Composition:
mono-constituent substance
Origin:
inorganic

Substance Identifiers open all close all

  • 257-098-5
  • 51274-00-1
  • 77492
  • PIGMENT YELLOW 42
  • Goethite
  • E172
  • CI 77492
  • Pigment Yellow 42
  • Bayferrox
  • C.I. 77492
  • C.I. Pigment Yellow 42
  • CathayCoat Yellow
  • CathayCoat Yellow Iron Oxide
  • CathayPure Yellow
  • CathayPure Yellow Iron oxide
  • Colortherm
  • FerroTint Yellow
  • FerroTint Yellow Iron Oxide
  • Ferroxon Yellow
  • GEH
  • Iron oxide yellow
  • Iron(III)oxide hydroxide
  • Lavanya Sooraj / Yellow Iron Oxide
  • Piirox GC913
  • Piirox® A920
  • Piirox® I913
  • Piirox® K910M
  • Spectrum Yellow
  • Spectrum Yellow Iron Oxide
  • Sumicos Yellow 2213C
  • TAROX IRON OXIDE LEMON
  • TAROX IRON OXIDE LL-100DK
  • TAROX IRON OXIDE LL-100HP
  • TAROX IRON OXIDE LL-100P
  • TAROX IRON OXIDE LL-50
  • TAROX IRON OXIDE LL-XLO
  • TAROX IRON OXIDE OCHER 1P
  • TAROX IRON OXIDE STN-1
  • TAROX IRON OXIDE YM1100
  • Yellow Pigment G-2
  • Yellow iron oxide
  • Yellow iron oxide 313
  • Yellow pigment G-1
  • iron hydroxide oxide
  • iron hydroxide oxide yellow
  • ossido di ferro giallo
  • ossido di ferro giallo sintetico
  • synthetic yellow iron oxide
  • Bayferrox 3905
    (Grade)
    Bayferrox 920
    (Grade)
    Bayferrox 920 Z
    (Grade)
    C.I. 77492
    (C.I.)
    C.I. Pigment Yellow 42
    (C.I.), (No other type specified)
    C.I. pigment, yellow 42
    (No other type specified)
    Pigment Yellow 42
    (No other type specified)
    Yellow Iron Oxide (CI PY 42)
    (chemical name)

    Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    >= 5 - <= 90 nm
    Percentile:
    D50
    Range:
    >= 10 - <= 100 nm
    Percentile:
    D90
    Range:
    >= 12 - <= 200 nm
    Range of length:
    >= 20 - <= 700 nm
    Range of aspect ratio (:1):
    >= 4 - <= 10
    Fraction of constituent particles in the size range 1-100 nm:
    >= 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    alpha-FeOOH (Goethite)
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 5 - <= 350 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    >= 5 - <= 25 nm
    Percentile:
    D50
    Range:
    >= 20 - <= 60 nm
    Percentile:
    D90
    Range:
    >= 50 - <= 120 nm
    Range of length:
    >= 10 - <= 120 nm
    Range of aspect ratio (:1):
    >= 1 - <= 4
    Fraction of constituent particles in the size range 1-100 nm:
    >= 85 - <= 95 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    gamma-FeOOH (Lepidocrocite)
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 10 - <= 25 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Iron hydroxide oxide yellow_nano_alpha_FeOOH

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    >= 5 - <= 90 nm
    Percentile:
    D50
    Range:
    >= 10 - <= 100 nm
    Percentile:
    D90
    Range:
    >= 12 - <= 200 nm
    Range of length:
    >= 20 - <= 600 nm
    Range of aspect ratio (:1):
    >= 4 - <= 10
    Fraction of constituent particles in the size range 1-100 nm:
    >= 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    alpha-FeOOH (Goethite)
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 5 - <= 350 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Iron hydroxide oxide yellow - BC_Nano_gamma-FeOOH

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    >= 5 - <= 25 nm
    Percentile:
    D50
    Range:
    >= 20 - <= 60 nm
    Percentile:
    D90
    Range:
    >= 50 - <= 120 nm
    Range of length:
    >= 10 - <= 120 nm
    Range of aspect ratio (:1):
    >= 1 - <= 4
    Fraction of constituent particles in the size range 1-100 nm:
    >= 85 - <= 95 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    gamma-FeOOH (Lepidocrocite)
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 10 - <= 25 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform
    Name of nanoform:
    Iron hydroxide oxide yellow - Nano_alpha-FeOOH

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Range:
    >= 5 - <= 90 nm
    Percentile:
    D50
    Range:
    >= 10 - <= 100 nm
    Percentile:
    D90
    Range:
    >= 12 - <= 200 nm
    Range of length:
    >= 20 - <= 600 nm
    Range of aspect ratio (:1):
    >= 4 - <= 10
    Fraction of constituent particles in the size range 1-100 nm:
    >= 50 - <= 100 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    alpha-FeOOH (Goethite)
    Pure structure:
    yes

    Specific surface area

    Range of specific surface area:
    >= 5 - <= 350 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Legal Entity Composition(s) open all close all

    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Typical composition:
    ca. 99 %
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 50 nm
    Range:
    >= 40 - <= 80 nm
    Percentile:
    D50
    Typical value:
    ca. 80 nm
    Range:
    >= 60 - <= 100 nm
    Percentile:
    D90
    Typical value:
    ca. 180 nm
    Range:
    >= 150 - <= 210 nm
    Typical length:
    ca. 184 nm
    Range of length:
    >= 150 - <= 210 nm
    Typical aspect ratio (:1):
    ca. 2.1 :1
    Range of aspect ratio (:1):
    >= 1 - <= 11
    Fraction of constituent particles in the size range 1-100 nm:
    >= 57 - <= 67 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    alpha-FeOOH (Goethite)
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 15 m²/g
    Range of specific surface area:
    >= 10 - <= 20 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: nanoform


    Constituent 1
    Chemical structure
    Reference substance name:
    Iron hydroxide oxide yellow
    EC Number:
    257-098-5
    EC Name:
    Iron hydroxide oxide yellow
    CAS Number:
    51274-00-1
    Molecular formula:
    Fe(OH)O
    IUPAC Name:
    Iron hydroxide oxide

    Characterisation of nanoforms

    Type of information reported:
    single nanoform

    Shape

    Shape description
    Shape category:
    elongated
    Shape:
    rod
    Pure shape:
    yes
    Typical composition:
    ca. 99 %
    Range:
    >= 95 - <= 100 %

    Particle size distribution and range

    Particle size distribution and range
    Shape category:
    elongated
    Percentileopen allclose all
    Percentile:
    D10
    Typical value:
    ca. 15 nm
    Range:
    >= 5 - <= 25 nm
    Percentile:
    D50
    Typical value:
    ca. 31 nm
    Range:
    >= 20 - <= 60 nm
    Percentile:
    D90
    Typical value:
    ca. 80 nm
    Range:
    >= 50 - <= 120 nm
    Typical length:
    ca. 53 nm
    Range of length:
    >= 10 - <= 120 nm
    Typical aspect ratio (:1):
    ca. 2 :1
    Range of aspect ratio (:1):
    >= 1 - <= 4
    Fraction of constituent particles in the size range 1-100 nm:
    >= 85 - <= 95 %

    Crystallinity

    Structures
    Structure:
    crystalline
    Name:
    gamma-FeOOH (Lepidocrocite)
    Pure structure:
    yes

    Specific surface area

    Typical specific surface area:
    ca. 17 m²/g
    Range of specific surface area:
    >= 10 - <= 25 m²/g

    Surface functionalisation / treatment

    Surface treatment applied:
    no
    State Form:
    solid: particulate/powder