Registration Dossier
Registration Dossier
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EC number: 254-100-6 | CAS number: 38720-66-0
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 04 June 1997
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Acceptable study report which meets basic scientific principles
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 1 997
- Report date:
- 1997
Materials and methods
- Principles of method if other than guideline:
- Malvern laser diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione
- EC Number:
- 254-100-6
- EC Name:
- Dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione
- Cas Number:
- 38720-66-0
- Molecular formula:
- C20H10Cl2N2O2
- IUPAC Name:
- 1,8-dichloro-5,7,12,14-tetrahydro-5,12-diazapentacene-7,14-dione; 1,9-dichloro-5,7,12,14-tetrahydro-5,12-diazapentacene-7,14-dione; 2,9-dichloro-5,7,12,14-tetrahydro-5,12-diazapentacene-7,14-dione
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 9.2 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D50
- Mean:
- 9.2 µm
- St. dev.:
- 1.2
Any other information on results incl. tables
Standard deviation calculated from experience with pigments: 0.13 x D50 (minimum value: 0.1)
Applicant's summary and conclusion
- Conclusions:
- The mass median diameter of the test item is 9.2 µm.
- Executive summary:
- The mass median diameter using Malvern laser diffraction (volumetric distribution) was determined to be 9.2 µm.
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