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EC number: 276-471-3 | CAS number: 72208-21-0
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:
- July 29, 2015
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Principles of method if other than guideline:
- Laser light scattering. The test was performed according to the SOP - STR 071 (Hydro 2000S) protocol.
Particle size distribution was analysed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure particle size. It measures intensity of light scattered as a laser beam passes through a dispersed particulate sample. The scattering pattern is then analysed to calculate particle size. - GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- ca. 27.075 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Percentile:
- D10
- Mean:
- ca. 7.792 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment.
- Percentile:
- D90
- Mean:
- ca. 82.991 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment.
- Conclusions:
- d(0.1): 7.792 µm
d(0.5): 27.075 µm
d(0.9): 82.991 µm - Executive summary:
Method
Particle size distribution was analysed using Mastersizer 2000 tool, which uses laser diffraction to measure particle size. This is obtained by measuring the intensity of light scattered as a laser beam passes through a dispersed particulate sample. The scattering pattern is then analysed to calculate particle size.
Result
Analysis carried out after 2 minutes of ultrasonic treatment:
d(0.1): 7.792 µm
d(0.5): 27.075 µm
d(0.9): 82.991 µm
Reference
Description of key information
MMD = 27.075 µm.
Additional information
Laser diffraction analysis.
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