Registration Dossier
Registration Dossier
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EC number: 204-970-8 | CAS number: 129-93-1
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2016
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 016
- Report date:
- 2016
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
Test material
- Reference substance name:
- 6,8-dianilinonaphthalene-1-sulphonic acid
- EC Number:
- 204-970-8
- EC Name:
- 6,8-dianilinonaphthalene-1-sulphonic acid
- Cas Number:
- 129-93-1
- Molecular formula:
- C22H18N2O3S
- IUPAC Name:
- 6,8-bis(phenylamino)naphthalene-1-sulfonic acid
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
- Mass median aerodynamic diameter:
- 7.9 µm
- Geometric standard deviation:
- 1
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 1.2 µm
- St. dev.:
- 0.1
- Percentile:
- D50
- Mean:
- 7.9 µm
- St. dev.:
- 1
- Percentile:
- D90
- Mean:
- 36.2 µm
- St. dev.:
- 8.2
Applicant's summary and conclusion
- Conclusions:
- The mass median diameter of the volumetric particle size distribution of the substance is 7.9 µm.
- Executive summary:
The volumetric particle size distribution of the substance was determined according to ISO 13320 - 1 using the Malvern Mastersizer equipment.
The mass median diameter D50 was found to be 7.9 µm.
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