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EC number: 238-692-3 | CAS number: 14643-87-9
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
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- not specified
- GLP compliance:
- not specified
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Specific details on test material used for the study:
- Zinc diacrylate (SR111); CAS No. 14643-87-9; Lot No. 705 SC1703131C, SC1703AC; Purity 100%
- Mass median aerodynamic diameter:
- > 11 - < 14 µm
- Key result
- Percentile:
- D10
- Mean:
- > 6 - < 7 µm
- St. dev.:
- 0.57
- Key result
- Percentile:
- D90
- Mean:
- > 28 - < 57 µm
- St. dev.:
- 11.89
- Size:
- < 58 µm
- Distribution:
- < 99 %
- Remarks on result:
- other: mass median diameter ranged between 11 and 14 microns
- Conclusions:
- Under the study conditions, the test substance passed approximately 100% through an 80 MESH (177 micron) sieve and approximately 99% through a 250 MESH (58 micron) sieve. The Horiba Particle Size Analyzer was consistent in showing the maximum particle size to be less than 177 microns and that 99% of the particle size distribution was less than 58 microns. In 2 different lots, each measured twice, the mass median diameter ranged between 11 and 14 microns.
- Executive summary:
A study was conducted to determine the granulometry of the test substance according to ISO 13320. Two types of measurements were conducted to determine the particle size distribution of test substance: 1. The HK-8 Ultrasonic Vibratory Laboratory Sieve analysis to evaluate particle size by running the test substance through an 80 MESH and a 250 MESH screen. 1. Laser Scattering Analyzer Method using Horiba Particle Size Analyzer. Under the study conditions, the test substance passed approximately 100% through an 80 MESH (177 micron) sieve and approximately 99% through a 250 MESH (58 micron) sieve. The Horiba Particle Size Analyzer was consistent in showing the maximum particle size to be less than 177 microns and that 99% of the particle size distribution was less than 58 microns. In 2 different lots, each measured twice, the mass median diameter ranged between 11 and 14 microns (Wylin, 2017).
Reference
| Lot Number | Mean (microns) | Mode (microns) | D10 (microns) | Median (microns) | D90 (microns) |
| 705 SC1703131C 1 | 25 | 12 | 7 | 14 | 45 |
| 705 SC1703131C 2 | 27 | 12 | 7 | 14 | 57 |
| 705 SC170103AC 1 | 18 | 11 | 6 | 11 | 28 |
| 705 SC170103AC 2 | 24 | 11 | 6 | 12 | 43 |
Description of key information
Determination of the granulometry according to ISO 13320 (Wylin, 2017).
Additional information
D10: 6 - 7 µm
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