Registration Dossier
Registration Dossier
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EC number: 234-465-8 | CAS number: 12005-21-9
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2015-09-03
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: General accepted method, data used for internal quality control, but documentation in study report is concise.
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: internal quality control
- Deviations:
- no
- Principles of method if other than guideline:
- The Particle size distribution is measured with a Cilas 1064 from Quantachrome. The sample is dispersed in de-ionized water by Ultrasonic vibrations. After dispersion the concentration is measured by a laser beam, and if necessary the dispersion is automatically diluted with de-ionized water. The particle size distribution is measured with the laser beam using the Laser diffraction method. From the measured Spectrum the particle size distribution is calculated using the Fraunhofer diffraction theory.
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- mass based distribution
Test material
- Reference substance name:
- Pentaaluminium triyttrium dodecaoxide
- EC Number:
- 234-465-8
- EC Name:
- Pentaaluminium triyttrium dodecaoxide
- Cas Number:
- 12005-21-9
- Molecular formula:
- Al5O12Y3
- IUPAC Name:
- pentaaluminium triyttrium dodecaoxide
- Test material form:
- solid - liquid: suspension
- Remarks:
- migrated information: dispersion
Constituent 1
Results and discussion
- Mass median aerodynamic diameter:
- 27.16 µm
- Remarks on result:
- other: Report states D10, D50, D90
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- ca. 14.42 µm
- Remarks on result:
- other: St. dev. not calculated
- Key result
- Percentile:
- D50
- Mean:
- ca. 27.16 µm
- Remarks on result:
- other: St. dev. not calculated
- Key result
- Percentile:
- D90
- Mean:
- ca. 46.78 µm
- Remarks on result:
- other: St. dev. not calculated
Any other information on results incl. tables
Taking into account that the substance is a UVCB, only the information of the mean of the particular size for D10, D50 and D90 are relevant.
Applicant's summary and conclusion
- Conclusions:
- Taking into account that the substance is a UVCB, only the information of the mean of the particular size for D10, D50 and D90 are relevant.
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.
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