Registration Dossier
Registration Dossier
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EC number: 256-458-9 | CAS number: 49744-28-7
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 11 Dec 2015
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable, well-documented study report which meets basic scientific principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: Malvern laser diffraction according to company SOP
- Version / remarks:
- unknown
- Deviations:
- not specified
- Principles of method if other than guideline:
- Malvern laser diffraction according to company SOP
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 1-[(4-methoxy-2-nitrophenyl)azo]-2-naphthol
- EC Number:
- 256-458-9
- EC Name:
- 1-[(4-methoxy-2-nitrophenyl)azo]-2-naphthol
- Cas Number:
- 49744-28-7
- Molecular formula:
- C17H13N3O4
- IUPAC Name:
- 1-[(4-methoxy-2-nitrophenyl)diazenyl]-2-naphthol
- Test material form:
- solid
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 4.7 µm
- St. dev.:
- 0.6
- Percentile:
- D10
- Mean:
- 0.77 µm
- St. dev.:
- 0.05
- Percentile:
- D90
- Mean:
- 14 µm
- St. dev.:
- 3
Applicant's summary and conclusion
- Conclusions:
- The median particle size of the test substance is 4.7 µm.
- Executive summary:
The particle size of the test substance was determined by laser diffraction. The median particle size of the test substance is 4.7 µm.
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