Bayferrox 920

Substance identity

Identification

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 oxide

Type of Substance

Composition:

mono-constituent substance

Origin:

inorganic

Substance Identifiers

EC number

257-098-5

CAS number

51274-00-1

Colour Index

77492

PIGMENT YELLOW 42

Common name

Goethite

E number

E172

INCI name

CI 77492

Pigment Yellow 42

Trade name

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

PJ 920

Piirox GC913

Piirox® A920

Piirox® I913

Piirox® K910M

Procter Johnson Yellow Iron Oxide

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

Other identifiers

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)

Iron hydroxide oxide yellow - Nano_alpha-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Range:

>= 10 - <= 100 nm

Percentile 3

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

Iron hydroxide oxide yellow - BC_Nano_gamma-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Range:

>= 5 - <= 25 nm

Percentile 2

Percentile:

D50

Range:

>= 20 - <= 60 nm

Percentile 3

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

Iron hydroxide oxide yellow - Nano_alpha-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Range:

>= 10 - <= 100 nm

Percentile 3

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

Iron hydroxide oxide yellow - BC_Nano_gamma-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Range:

>= 5 - <= 25 nm

Percentile 2

Percentile:

D50

Range:

>= 20 - <= 60 nm

Percentile 3

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

Iron hydroxide oxide yellow - Nano_alpha-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Range:

>= 10 - <= 100 nm

Percentile 3

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

Iron hydroxide oxide yellow

State Form:

solid: bulk

Constituent 1

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 oxide

Legal Entity Composition(s)

Iron hydroxide oxide yellow - LE_Nano_alpha-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 50 nm

Range:

>= 40 - <= 80 nm

Percentile 2

Percentile:

D50

Typical value:

ca. 80 nm

Range:

>= 60 - <= 100 nm

Percentile 3

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

Iron hydroxide oxide yellow - LE_Nano_gamma-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 15 nm

Range:

>= 5 - <= 25 nm

Percentile 2

Percentile:

D50

Typical value:

ca. 31 nm

Range:

>= 20 - <= 60 nm

Percentile 3

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

Iron hydroxide oxide yellow (Yellow iron oxide) - Nano_alpha-FeOOH_FPPS

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Typical value:

25 nm

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Typical value:

50 nm

Range:

>= 30 - <= 100 nm

Percentile 3

Percentile:

D90

Typical value:

120 nm

Range:

>= 50 - <= 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

Typical specific surface area:

ca. 25 m²/g

Range of specific surface area:

>= 5 - <= 350 m²/g

Skeletal density:

ca. 4.06 g/cm³

Surface functionalisation / treatment

Surface treatment applied:

no

Nano_alpha-FeOOH Heat Resistant Iron hydroxide oxide yellow

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Typical value:

25 nm

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Typical value:

50 nm

Range:

>= 30 - <= 100 nm

Percentile 3

Percentile:

D90

Typical value:

120 nm

Range:

>= 50 - <= 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 (Gothite)

Pure structure:

yes

Specific surface area

Typical specific surface area:

ca. 25 m²/g

Range of specific surface area:

>= 5 - <= 350 m²/g

Skeletal density:

ca. 4.06 g/cm³

Surface functionalisation / treatment

Surface treatment applied:

no

Iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Name of nanoform:

NANO- yellow

Shape

Shape description

Shape category:

elongated

Shape:

rod

Pure shape:

yes

Typical composition:

ca. 100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

elongated

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 135 nm

Range:

>= 85 - <= 210 nm

Percentile 2

Percentile:

D50

Typical value:

ca. 215 nm

Range:

>= 109 - <= 470 nm

Percentile 3

Percentile:

D90

Typical value:

ca. 310 nm

Range:

>= 150 - <= 785 nm

Typical length:

ca. 654.18 nm

Range of length:

>= 357.61 - <= 950.75 nm

Typical lateral dimension 1:

ca. 164.78 nm

Range of lateral dimension 1:

>= 97.58 - <= 232 nm

Typical aspect ratio (:1):

ca. 4.2 :1

Range of aspect ratio (:1):

>= 2.3 - <= 6.1

Fraction of constituent particles in the size range 1-100 nm:

>= 55.32 - <= 70 %

Crystallinity

Structures

Structures 1

Structure:

crystalline

Name:

goethita (α-FeOOH)

Pure structure:

yes

Typical composition:

ca. 78.5 %

Range:

>= 75 - <= 80 %

Crystal system:

orthorhombic

Structures 2

Structure:

amorphous

Pure structure:

yes

Typical composition:

ca. 22 %

Range:

>= 21 - <= 25 %

Specific surface area

Typical specific surface area:

ca. 12.9 m²/g

Range of specific surface area:

>= 12.76 - <= 13.04 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

Iron hydroxide oxide yellow - Nano_alpha-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 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

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 10 nm

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Typical value:

ca. 15 nm

Range:

>= 10 - <= 100 nm

Percentile 3

Percentile:

D90

Typical value:

ca. 20 nm

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

Typical specific surface area:

ca. 100 m²/g

Range of specific surface area:

>= 5 - <= 350 m²/g

Skeletal density:

ca. 3.8 g/cm³

Surface functionalisation / treatment

Surface treatment applied:

no

Iron hydroxyde oxide yellow

State Form:

solid: particulate/powder

Constituent 1

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 oxide

Goethite (FE(OH)O)

State Form:

solid: particulate/powder

Constituent 1

Reference substance name:

Goethite (Fe(OH)O)

EC Number:

215-176-6

EC Name:

Goethite (Fe(OH)O)

CAS Number:

1310-14-1

Molecular formula:

FeHO2

IUPAC Name:

hydroxy(oxo)iron

Iron hydroxide oxide yellow_Ferroxon 510

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

elongated

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Range:

>= 95 - <= 100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

elongated

Percentile

Percentile 1

Percentile:

D10

Typical value:

60 nm

Range:

>= 50 - <= 70 nm

Percentile 2

Percentile:

D50

Typical value:

100 nm

Range:

>= 90 - <= 100 nm

Percentile 3

Percentile:

D90

Typical value:

160 nm

Range:

>= 100 - <= 200 nm

Typical length:

568 nm

Range of length:

>= 300 - <= 700 nm

Typical aspect ratio (:1):

5.85 :1

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

Crystal system:

orthorhombic

Specific surface area

Typical specific surface area:

19.689 m²/g

Range of specific surface area:

> 9 - < 29 m²/g

Typical volume specific surface area:

83.737 m²/cm³

Range of volume specific surface area:

> 73 - < 93 m²/cm³

Skeletal density:

4.253 g/cm³

Surface functionalisation / treatment

Surface treatment applied:

no

Does the set contain both treated and non-surface treated nanoforms?:

no

Iron hydroxide oxide yellow_Ferroxon 515

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

elongated

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Range:

>= 95 - <= 100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

elongated

Percentile

Percentile 1

Percentile:

D10

Typical value:

50 nm

Range:

>= 40 - <= 60 nm

Percentile 2

Percentile:

D50

Typical value:

90 nm

Range:

>= 70 - <= 100 nm

Percentile 3

Percentile:

D90

Typical value:

170 nm

Range:

>= 110 - <= 200 nm

Typical length:

600 nm

Range of length:

>= 300 - <= 700 nm

Typical aspect ratio (:1):

6.34 :1

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

Crystal system:

orthorhombic

Specific surface area

Typical specific surface area:

14.702 m²/g

Range of specific surface area:

> 5 - < 25 m²/g

Typical volume specific surface area:

65.586 m²/cm³

Range of volume specific surface area:

> 60 - < 70 m²/cm³

Skeletal density:

4.461 g/cm³

Surface functionalisation / treatment

Surface treatment applied:

no

Does the set contain both treated and non-surface treated nanoforms?:

no

Iron hydroxide oxide

State Form:

solid: particulate/powder

Constituent 1

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 oxide

Iron hydroxide oxide -Nano_alpha-FeOOH

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

elongated

Remarks:

rods

Shape:

rod

Pure shape:

yes

Typical composition:

> 97 %

Range:

>= 95 - <= 100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

elongated

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 60 nm

Range:

>= 5 - <= 90 nm

Percentile 2

Percentile:

D50

Typical value:

ca. 90 nm

Range:

>= 10 - <= 100 nm

Percentile 3

Percentile:

D90

Typical value:

ca. 150 nm

Range:

>= 12 - <= 200 nm

Typical length:

ca. 500 nm

Range of length:

>= 20 - <= 700 nm

Typical aspect ratio (:1):

ca. 5.6 :1

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

Crystal system:

orthorhombic

Specific surface area

Typical specific surface area:

ca. 20 m²/g

Range of specific surface area:

>= 5 - <= 350 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

Does the set contain both treated and non-surface treated nanoforms?:

no

Iron hydroxide oxide yellow

State Form:

solid: particulate/powder

Constituent 1

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 oxide

Iron hydroxide

State Form:

solid: particulate/powder

Constituent 1

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 oxide

Pigment Yellow 42

State Form:

solid: particulate/powder

Constituent 1

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 oxide

Iron Hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

elongated

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

elongated

Percentile

Percentile 1

Percentile:

D90

Typical value:

15.17 μm

Range:

> 14.74 - < 15.59 μm

Percentile 2

Percentile:

D50

Typical value:

4.8 μm

Range:

> 4.63 - < 4.96 μm

Percentile 3

Percentile:

D10

Typical value:

0.82 μm

Range:

> 0.81 - < 0.84 μm

Percentile 4

Percentile:

D50

Typical value:

14 nm

Range:

> 11 - < 17 nm

Typical length:

ca. 520 nm

Range of length:

> 100 - < 1 400 nm

Typical aspect ratio (:1):

ca. 37 :1

Range of aspect ratio (:1):

>= 10 - <= 175

Fraction of constituent particles in the size range 1-100 nm:

1 - ca. 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Goethite

Pure structure:

yes

Typical composition:

ca. 100 %

Range:

> 80 - < 100 %

Crystal system:

orthorhombic

Specific surface area

Typical specific surface area:

ca. 15 m²/g

Range of specific surface area:

>= 15 - <= 15 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

iron hydroxide oxide yellow

State Form:

solid: particulate/powder

Constituent 1

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 oxide

iron hydroxide oxide

State Form:

solid: particulate/powder

Constituent 1

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 oxide

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.02 μm

Range:

>= 0.016 - <= 0.026 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.043 μm

Range:

>= 0.027 - <= 0.065 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.155 μm

Range:

>= 0.062 - <= 0.68 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 2.8 :1

Range of aspect ratio (:1):

>= 2.1 - <= 5.7

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 16.6 m²/g

Range of specific surface area:

>= 8.1 - <= 22.8 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

Does the set contain both treated and non-surface treated nanoforms?:

yes

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.007 μm

Range:

>= 0.006 - <= 0.008 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.012 μm

Range:

>= 0.011 - <= 0.013 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.021 μm

Range:

>= 0.019 - <= 0.022 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 4 :1

Range of aspect ratio (:1):

>= 3.8 - <= 4.2

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 83.8 m²/g

Range of specific surface area:

>= 75.7 - <= 95.1 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

Does the set contain both treated and non-surface treated nanoforms?:

yes

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.019 μm

Range:

>= 0.019 - <= 0.019 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.045 μm

Range:

>= 0.045 - <= 0.045 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.125 μm

Range:

>= 0.125 - <= 0.125 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 2.4 :1

Range of aspect ratio (:1):

>= 2.4 - <= 2.4

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 13.8 m²/g

Range of specific surface area:

>= 13.8 - <= 13.8 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.3

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

addition of aluminum sulphate in the water slurry with the pigment, and precipitation with caustic soda.

Surface functionalisatioon: Alumina - Molar Ratio 0.002:1
Molar Ratio:0.002:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.007 μm

Range:

>= 0.007 - <= 0.007 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.011 μm

Range:

>= 0.011 - <= 0.011 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.018 μm

Range:

>= 0.018 - <= 0.018 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 3.9 :1

Range of aspect ratio (:1):

>= 3.9 - <= 3.9

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 102 m²/g

Range of specific surface area:

>= 102 - <= 102 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.4

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

addition of aluminum sulphate in the water slurry with the pigment, and precipitation with caustic soda.

Surface functionalisatioon: Alumina - Molar Ratio 0.002:1
Molar Ratio:0.002:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.008 μm

Range:

>= 0.008 - <= 0.008 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.011 μm

Range:

>= 0.011 - <= 0.011 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.017 μm

Range:

>= 0.017 - <= 0.017 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 3.8 :1

Range of aspect ratio (:1):

>= 3.8 - <= 3.8

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 86.9 m²/g

Range of specific surface area:

>= 86.9 - <= 86.9 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.5

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

Addition of sodium phosphate is made into the water slurry with the pigment. This is followed by filtration and drying.

Surface Functionalisation: Phosphate, molar ratio 0.0018

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.019 μm

Range:

>= 0.019 - <= 0.019 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.045 μm

Range:

>= 0.045 - <= 0.045 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.125 μm

Range:

>= 0.125 - <= 0.125 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 2.4 :1

Range of aspect ratio (:1):

>= 2.4 - <= 2.4

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 13.8 m²/g

Range of specific surface area:

>= 13.8 - <= 13.8 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.3

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

addition of aluminum sulphate in the water slurry with the pigment, and precipitation with caustic soda.

Surface functionalisatioon: Alumina - Molar Ratio 0.002:1
Molar Ratio:0.002:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.007 μm

Range:

>= 0.007 - <= 0.007 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.011 μm

Range:

>= 0.011 - <= 0.011 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.018 μm

Range:

>= 0.018 - <= 0.018 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 3.9 :1

Range of aspect ratio (:1):

>= 3.9 - <= 3.9

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 102 m²/g

Range of specific surface area:

>= 102 - <= 102 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.4

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

addition of aluminum sulphate in the water slurry with the pigment, and precipitation with caustic soda.

Surface functionalisatioon: Alumina - Molar Ratio 0.002:1
Molar Ratio:0.002:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.008 μm

Range:

>= 0.008 - <= 0.008 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.011 μm

Range:

>= 0.011 - <= 0.011 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.017 μm

Range:

>= 0.017 - <= 0.017 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 3.8 :1

Range of aspect ratio (:1):

>= 3.8 - <= 3.8

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 86.9 m²/g

Range of specific surface area:

>= 86.9 - <= 86.9 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.5

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

Addition of sodium phosphate is made into the water slurry with the pigment. This is followed by filtration and drying.

Surfae Functionalisation: Phosphate, molar ratio 0.0018:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.019 μm

Range:

>= 0.019 - <= 0.019 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.045 μm

Range:

>= 0.045 - <= 0.045 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.125 μm

Range:

>= 0.125 - <= 0.125 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 2.4 :1

Range of aspect ratio (:1):

>= 2.4 - <= 2.4

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 13.8 m²/g

Range of specific surface area:

>= 13.8 - <= 13.8 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.3

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

addition of aluminum sulphate in the water slurry with the pigment, and precipitation with caustic soda.

Surface functionalisatioon: Alumina
Molar Ratio:0.002:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.007 μm

Range:

>= 0.007 - <= 0.007 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.011 μm

Range:

>= 0.011 - <= 0.011 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.018 μm

Range:

>= 0.018 - <= 0.018 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 3.9 :1

Range of aspect ratio (:1):

>= 3.9 - <= 3.9

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 102 m²/g

Range of specific surface area:

>= 102 - <= 102 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.4

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

addition of aluminum sulphate in the water slurry with the pigment, and precipitation with caustic soda.

Surface functionalisatioon: Alumina
Molar Ratio:0.002:1

Percentage of coverage of particle surface, %:

100

iron hydroxide oxide

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

spheroidal

Shape:

rod

Pure shape:

yes

Typical composition:

100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

spheroidal

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 0.008 μm

Range:

>= 0.008 - <= 0.008 μm

Percentile 2

Percentile:

D50

Typical value:

ca. 0.011 μm

Range:

>= 0.011 - <= 0.011 μm

Percentile 3

Percentile:

D90

Typical value:

>= 0.017 μm

Range:

>= 0.017 - <= 0.017 μm

Typical length:

ca.

Range of length:

>= <=

Typical aspect ratio (:1):

ca. 3.8 :1

Range of aspect ratio (:1):

>= 3.8 - <= 3.8

Fraction of constituent particles in the size range 1-100 nm:

>= 50 - <= 100 %

Crystallinity

Structures

Structure:

crystalline

Name:

Iron(III) oxide hydroxide

Pure structure:

yes

Typical composition:

ca. 98 %

Range:

>= 92 - ca. 99 %

Specific surface area

Typical specific surface area:

ca. 86.9 m²/g

Range of specific surface area:

>= 86.9 - <= 86.9 m²/g

Surface functionalisation / treatment

Surface treatment applied:

yes

Does the set contain both treated and non-surface treated nanoforms?:

yes

Surface treatments

Surface treatment name:

Surface Treatment Nanoform 3.5

Surface treatment

Order:

#1

External layer:

hydrophilic

Description:

Addition of sodium phosphate is made into the water slurry with the pigment. This is followed by filtration and drying.

Surfae Functionalisation: Phosphate, molar ratio 0.0018

Percentage of coverage of particle surface, %:

100

Iron hydroxide oxide yellow

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Type of information reported:

single nanoform

Shape

Shape description

Shape category:

elongated

Shape:

rod

Pure shape:

yes

Typical composition:

ca. 100 %

Range:

ca. 100 %

Particle size distribution and range

Particle size distribution and range

Shape category:

elongated

Percentile

Percentile 1

Percentile:

D10

Typical value:

ca. 41 nm

Range:

>= 35 - <= 47 nm

Percentile 2

Percentile:

D50

Typical value:

ca. 96 nm

Range:

>= 89 - <= 103 nm

Percentile 3

Percentile:

D90

Typical value:

ca. 163 nm

Range:

>= 154 - <= 173 nm

Typical length:

ca. 620 nm

Range of length:

>= 570 - <= 660 nm

Typical aspect ratio (:1):

ca. 6.4 :1

Range of aspect ratio (:1):

>= 5.5 - <= 8

Fraction of constituent particles in the size range 1-100 nm:

> 50 - < 60 %

Crystallinity

Structures

Structure:

crystalline

Name:

goethite

Pure structure:

yes

Typical composition:

ca. 100 %

Range:

ca. 100 - ca. 100 %

Crystal system:

orthorhombic

Bravais lattice:

primitive orthorhombic

Specific surface area

Typical specific surface area:

ca. 25 m²/g

Range of specific surface area:

> 20 - < 30 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

Does the set contain both treated and non-surface treated nanoforms?:

no

Iron hydroxide oxide yellow

Constituent 1

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 oxide

Iron hydroxide oxide yellow

State Form:

solid: nanoform

Constituent 1

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 oxide

Iron hydroxide yellow

State Form:

solid: particulate/powder

Constituent 1

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 oxide

Iron hydroxide yellow

Nanoform

State Form:

solid: nanoform

Constituent 1

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 oxide

Characterisation of nanoforms

Particle size distribution and range

Particle size distribution and range

Range of length:

420 nm

Range of lateral dimension 1:

70 nm

Specific surface area

Range of specific surface area:

14.5 m²/g

Surface functionalisation / treatment

Surface treatment applied:

no

Surface treatments

External layer:

hydrophilic

Iron Hydoxide Oxide

Constituent 1