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EC number: 236-109-7 | CAS number: 13170-05-3
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-06-26 - 2018-06-26 (experimental phase)
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Version / remarks:
- OECD Guideline 110 (1981): Particle size distribution
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Version / remarks:
- ISO 13320 (2009): Particle size analysis – Laser diffraction methods
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Bis[4-(tert-butyl)benzoato-O]hydroxyaluminium
- EC Number:
- 236-109-7
- EC Name:
- Bis[4-(tert-butyl)benzoato-O]hydroxyaluminium
- Cas Number:
- 13170-05-3
- Molecular formula:
- C22H27AlO5
- IUPAC Name:
- aluminum hydroxide bis(4-tert-butylbenzoate)
- Test material form:
- solid: particulate/powder
Constituent 1
Results and discussion
- Mass median aerodynamic diameter:
- 1.8 µm
- Geometric standard deviation:
- 0.02
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 0.5 µm
- St. dev.:
- 0.01
- Remarks on result:
- other: Average from two test series of 3 measurements each
- Key result
- Percentile:
- D50
- Mean:
- 1.8 µm
- St. dev.:
- 0.02
- Remarks on result:
- other: Average from two test series of 3 measurements each
- Percentile:
- D90
- Mean:
- 6.6 µm
- St. dev.:
- 0.02
- Remarks on result:
- other: Average from two test series of 3 measurements each
Applicant's summary and conclusion
- Conclusions:
- The study was conducted under GLP according to OECD TG 110 (1981) and ISO 13320 (2009) without deviations and therefore reliability of Klimisch 1 has been assigned. Based on the obtained results the median particle size (D50) was determined to be 1.8 ± 0.02 µm.
- Executive summary:
The median particle size (D50) of the test material was determined to be 1.8 ± 0.02 µm by laser diffraction measurement in a GLP test according to OECD Test Guideline 110 (1981) and ISO 13320 (2009).
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