Registration Dossier
Registration Dossier
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EC number: 228-906-3 | CAS number: 6372-81-2
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: Laser diffraction is the well experienced standard procedure for pigments to determine particle size distribution of the pigment as it is manufactured and delivered.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
- Report date:
- 2014
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320-1
- Principles of method if other than guideline:
- Laser diffraction particle sizing
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Barium bis[2-[(2-hydroxy-1-naphthyl)azo]benzoate]
- EC Number:
- 228-906-3
- EC Name:
- Barium bis[2-[(2-hydroxy-1-naphthyl)azo]benzoate]
- Cas Number:
- 6372-81-2
- Molecular formula:
- C17H12N2O3.1/2Ba
- IUPAC Name:
- barium bis{2-[(2-hydroxy-1-naphthyl)diazenyl]benzoate}
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Mean:
- 1.782 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- 0.523 µm
- St. dev.:
- 0.05
- Percentile:
- D50
- Mean:
- 1.782 µm
- St. dev.:
- 0.23
- Percentile:
- D90
- Mean:
- 28.724 µm
- St. dev.:
- 7.8
Any other information on results incl. tables
For further percentiles see attached document.
Given standard deviation is based on the general experience with the method and pigments. The estimated values are typical standard deviations for pigments:
D10: 4 % of D10 (minimum value 0.05 µm)
D50: 13 % of D50 (minimum value 0.1 µm)
D90: 29 % of D90 - D50
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.
