Registration Dossier
Registration Dossier
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EC number: 229-068-1 | CAS number: 6408-78-2
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:
- June 27, 2013
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Principles of method if other than guideline:
- The substance has been tested according to internal procedure SOP-STR 071.
Laser light scattering. The particle size distribution was analyzed using the Mastersizer 2000 tool, which uses the technique of laser diffraction to measure the size of particles. It measures the intensity of light scattered as a laser beam passes through a dispersed particulate sample. This data is then analyzed to calculate the size of the particles that created the scattering pattern. - GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- ca. 19.756 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Percentile:
- D10
- Mean:
- ca. 7.27 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Percentile:
- D90
- Mean:
- ca. 49.119 µm
- Remarks on result:
- other: after 2 minutes of ultrasonic treatment
- Conclusions:
- The test item has a median mass diameter of 19.756 µm
- Executive summary:
The substance to be registered has been tested for granulometry. The test item shows a median mass diameter of 19.756 µm.
Reference
Acid Blue 025 was tested after 2 minutes of ultrasonic treatment.
Description of key information
D50 = 19.756 µm
Additional information
The particle size distribution was determined by light scattering (REACH&Colours Kft, 2013) and resulted to have the following parameters:
D10 = 7.270 µm
D50 = 19.756 µm
D90 = 49.119 µm
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