Registration Dossier
Registration Dossier
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 221-424-4 | CAS number: 3089-17-6
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Remarks:
- Laser diffraction is the well experienced standard procedure for pigments to determine particle size distribution of the substance as it is manufactured and delivered.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 020
- Report date:
- 2020
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 2,9-dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione
- EC Number:
- 221-424-4
- EC Name:
- 2,9-dichloro-5,12-dihydroquino[2,3-b]acridine-7,14-dione
- Cas Number:
- 3089-17-6
- Molecular formula:
- C20H10Cl2N2O2
- IUPAC Name:
- 2,9-dichloro-5,7,12,14-tetrahydro-5,12-diazapentacene-7,14-dione
- Test material form:
- solid: nanoform
1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 2.94 µm
- St. dev.:
- 0.38
- Percentile:
- D10
- Mean:
- 0.66 µm
- St. dev.:
- 0.05
- Percentile:
- D90
- Mean:
- 14.86 µm
- St. dev.:
- 3.5
Any other information on results incl. tables
Given standard deviation is based on the general experience with pigments and the method. The estimated values are typical standard deviations:
D10: 4 % of D10 (minimum value 0.05 µm)
D50: 13 % of D50 (minimum value 0.1 µm)
D90: 29 % of D90 - D50
percentage below 0.10 µm: 0.00 %
percentage below 1.00 µm: 18.20 %
percentage below 15.00 µm: 90.08 %
percentage below 100.00 µm: 98.63 %
percentage below 200.00 µm: 99.73 %
Applicant's summary and conclusion
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
