Registration Dossier
Registration Dossier
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EC number: 472-110-0 | CAS number: 71868-15-0
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018-11-29 - 2018-11-30
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Key result
- Percentile:
- D50
- Mean:
- 12.5 µm
- St. dev.:
- 0.13
- Remarks on result:
- other: average of two test series
- Percentile:
- D10
- Mean:
- 4.7 µm
- St. dev.:
- 0.02
- Remarks on result:
- other: average of two test series
- Percentile:
- D90
- Mean:
- 27.7 µm
- St. dev.:
- 0.23
- Remarks on result:
- other: average of two test series
- Conclusions:
- The test substance has a median particle size D50 = 12.5 µm.
- Executive summary:
- The particle size distribution of the test substance 2-Hydroxy-1-[4-(4-(2-hydroxy-2-methylpropionyl)phenoxy)phenyl]-2-methylpropan-1-one was determined by laser light scattering, according to OECD Guideline 110 (and OPPTS 830.7520 and ISO 13320). The test substance has a median particle size D50 = 12.5 µm.
Reference
Description of key information
The particle size distribution of the test substance was determined by laser diffraction according to OECD Guideline 110 and ISO Method 13320, 2009 (Schiewer, 2019).
Additional information
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