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Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2014
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: The reliability is rated 2 because the study is well documented, meets generally accepted scientific principles. The results were reviewed for reliability and assessed as valid.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2014

Materials and methods

Test guidelineopen allclose all
Qualifier:
equivalent or similar to guideline
Guideline:
other: SAV. 038: Medianwert-Bestimmung (PartikelgrÖssen-Verteilung)
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
Principles of method if other than guideline:
Laser diffraction on particles placed in a suspension
GLP compliance:
no
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
anilino(phenylimino)methanaminium 3-[(4-anilinophenyl)diazenyl]benzenesulfonate
EC Number:
941-151-0
Molecular formula:
C31H28N6SO3
IUPAC Name:
anilino(phenylimino)methanaminium 3-[(4-anilinophenyl)diazenyl]benzenesulfonate
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder
Details on test material:
- Name of test material (as cited in study report): Sepisol Fast Yellow MG-DPG
- Substance type: organic salt
- Appearance/Physical state: Red powder
- Stability under test conditions:stable

Results and discussion

Particle sizeopen allclose all
Percentile:
D50
Remarks on result:
other: not calculated but MMAD is likely to be less than 100 µm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
Percentile:
D90
Mean:
120.8 µm
Percentile:
D50
Mean:
27.44 µm
Percentile:
D10
Mean:
3.135 µm
Particle size distribution at different passages
Remarks on result:
other: not determined in this assay

Applicant's summary and conclusion

Conclusions:
The particles size distribution has been determined by laser diffraction. 90% of the particles size stands below 120.8 µm; 50% below 27.44 µm and 10% below 3.135 µm. MMAD is expected to be less than 100 µm.