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Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

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Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
29th June 2010
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Remarks:
Test method similar to OECD TG 110. No GLP study.
Qualifier:
according to guideline
Guideline:
other: (Internal Method NCF-45)
Deviations:
no
Qualifier:
equivalent or similar to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution
Key result
Percentile:
other: typical size distribution
Mean:
>= 0.5 - <= 5 µm
Remarks on result:
other: SD not reported
Key result
Percentile:
D50
Mean:
4.78 µm
Remarks on result:
other: Sample Coarse Blue Ultramarine blue
Key result
Percentile:
D90
Mean:
12.7 µm
Remarks on result:
other: Sample Coarse Blue Ultramarine blue
Key result
Percentile:
D10
Mean:
1.04 µm
Remarks on result:
other: Sample Coarse Blue Ultramarine blue
Key result
Percentile:
D50
Mean:
1.17 µm
Remarks on result:
other: Sample Medium Blue Ultramarine Blue
Key result
Percentile:
D90
Mean:
11.6 µm
Remarks on result:
other: Sample Medium Blue Ultramarine Blue
Key result
Percentile:
D10
Mean:
0.31 µm
Remarks on result:
other: Sample Medium Blue Ultramarine Blue
Percentile:
other: D[4,3]
Mean:
6.34 µm
Remarks on result:
other: sample Coarse Blue Ultramarine Blue
Percentile:
other: D[4,3]
Mean:
3.77 µm
Remarks on result:
other: Sample Medium Blue Ultramarine Blue

St.deviation is not provided.

3 samples

Coarse Blue: Ultramarine Blue : (Diameter 90% particles) 12.7 μm, (Diameter 50% particles) 4.78 μm, (Diameter 10% particles) 1.04 μm

Medium Blue: Ultramarine Blue: (Diameter 90% particles) 11. µm, (Diameter 50% particles) 1.17 μm, (Diameter 10% particles) 0.31 μm

Fine Blue: (Diameter 90% particles) 2.22 µm, (Diameter 50% particles) 0.94 μm, (Diameter 10% particles) 0.35 μm

Conclusions:
The typical particle size distribution is between 0.5-5.0 μm
Executive summary:

The aim of this study was the determination of the particle size distribution of the test substance according to internal method NCF-45 (similar to OECD guideline 110).

The typical particle size distribution is between 0.5-5.0 μm

Endpoint:
particle size distribution (granulometry)
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Remarks:
No data on GLP. No data on followed guideline.
Principles of method if other than guideline:
No data on test guideline
GLP compliance:
not specified
Type of distribution:
other: (no data)
Percentile:
D50
Mean:
>= 0.7 - <= 5 µm
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

No data on percentile and particle size distribution at different passages.

Conclusions:
The typical range for the particle size is 0.7 - 5.0 µm
Executive summary:

The typical range for the particle size is 0.7 - 5.0 µm

Endpoint:
particle size distribution (granulometry)
Adequacy of study:
supporting study
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
documentation insufficient for assessment
Remarks:
No data on GLP. No data on followed guideline.
Principles of method if other than guideline:
No data on test guideline
GLP compliance:
not specified
Type of distribution:
other: (no data)
Percentile:
D50
Mean:
>= 0.5 - <= 5 µm
Remarks on result:
other: 0.5-1 for light ultramarine blue tones, 3-5 for dark shades(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)

No data on percentile and particle size distribution at different passages.

Conclusions:
The particle size is:
*0.5-1.0 µm for light ultramarine Blue tones
*between 3 - 5 µm for the dark shades
Executive summary:

The particle size is:

*0.5-1.0 µm for light ultramarine Blue tones

*between 3 - 5 µm for the dark shades

Description of key information

The typical particle size distribution is between 0.5-5.0 μm. Key study according to internal method NCF-45 (similar to OECD guideline 110).

Additional information

Key study according to internal method NCF-45 (similar to OECD guideline 110).

The typical particle size distribution is between 0.5-5.0 μm.

This result is supported by further experimental data on publications (typical range: 0.7 -5 µm; light ultramarine blue tones 0.5 -1.0 µm, dark shades 3.0 -5.0 µm)