Registration Dossier
Registration Dossier
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EC number: 219-888-8 | CAS number: 2564-83-2
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 04_2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
- Report date:
- 2018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
Test material
- Reference substance name:
- 2,2,6,6-tetramethylpiperidinooxy
- EC Number:
- 219-888-8
- EC Name:
- 2,2,6,6-tetramethylpiperidinooxy
- Cas Number:
- 2564-83-2
- Molecular formula:
- C9H18NO
- IUPAC Name:
- 2,2,6,6-tetramethylpiperidin-1-ol
- Test material form:
- solid
Constituent 1
Results and discussion
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- < 1 600 µm
- Distribution:
- 0.567 other: mm
- No.:
- #2
- Size:
- > 1 600 µm
- Distribution:
- 0.745 other: mm
Applicant's summary and conclusion
- Conclusions:
- With this method, particles with diameters from 50 μm up to 18 mm (shadow projection) could be detected.
In addition to the evaluation of the two sieve fractions (<1600 μm and >1600 μm), the sum is also available in
the diagrams (size distribution and sum curve) on the following pages. The corresponding pictures are also
available.
The arithmetic mean of the Feret diameter of the fraction <1600 μm is 0.567mm. The mean value for the sample
>1600 μm is 0.745 mm. For the sum of both samples, the mean diameter is 0.632 mm.
In relation to the Feret diameter, the total proportion of particles (sum of both samples) smaller than 100 μm is 3.4 %.
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