Registration Dossier
Registration Dossier
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EC number: 287-643-2 | CAS number: 85566-32-1
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:
- 2020
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- not specified
- Principles of method if other than guideline:
- Laser diffraction measures particle size distributions by measuring the angular variation in intensity of light scattered as a laser beam passes through a dispersed particulate sample. Large particles scatter light at small angles relative to the laser beam and small particles scatter light at large angles. The angular scattering intensity data is then analyzed to calculate the size of the particles responsible for creating the scattering pattern, using the Mie theory of light scattering. The particle size is reported as a volume equivalent sphere diameter.
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Mass median aerodynamic diameter:
- ca. 96.8 µm
- Key result
- Percentile:
- D50
- Mean:
- ca. 96.8 µm
- Remarks on result:
- other: Standard deviation not calculated. See attached report
- Percentile:
- D10
- Mean:
- ca. 38.3 µm
- Remarks on result:
- other: Standard deviation not calculated. See attached report
- Percentile:
- D90
- Mean:
- ca. 169 µm
- Remarks on result:
- other: Standard deviation not calculated. See attached report
- Conclusions:
- The median for a volume distribution Dv (50) of particles in the substance fatty acids C16-18, reaction product with ethanolamine is 96.8 μm
- Executive summary:
The laser diffraction method was utilised to calculate the particle size distribution of the substance fatty acids C16 -18, reaction product with ethanolamine. D10, D50, and D90 values based on a volume distribution were reported, and the results were 38.3 , 96.8 and 169 μm, respectively. The span calculation, expressing the distribution width is 1.351.
Reference
Description of key information
The laser diffraction method was utilised to calculate the particle size distribution of the substance fatty acids C16 -18, reaction product with ethanolamine. D10, D50, and D90 values based on a volume distribution were reported, and the results were 38.3 , 96.8 and 169 μm, respectively. The span calculation, expressing the distribution width is 1.351.
Additional information
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