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EC number: 237-257-5 | CAS number: 13709-49-4
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 24 October 2016
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- guideline study without detailed documentation
Data source
Reference
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 017
- Report date:
- 2017
Materials and methods
Test guideline
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Within this study, particle size distribution was determined using Sedigraph 5200 equipment. The measurement principle is X-ray monitored gravity sedimentation, which provides results based on Stokes sedimentation and Beer's law of extinction.
- GLP compliance:
- not specified
- Type of method:
- sedimentation (gravitational settling)
- Type of distribution:
- mass based distribution
Test material
- Reference substance name:
- Yttrium trifluoride
- EC Number:
- 237-257-5
- EC Name:
- Yttrium trifluoride
- Cas Number:
- 13709-49-4
- Molecular formula:
- YF3
- IUPAC Name:
- yttrium trifluoride
- Test material form:
- solid: particulate/powder
- Details on test material:
- - Name of test material (as cited in study report): yttrium trifluoride
- Physical state: solid
- Appearance: white powder
- Further information on test material confidential.
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 0.36 µm
- Remarks on result:
- other: 1 run
- Key result
- Percentile:
- D50
- Mean:
- 0.62 µm
- Remarks on result:
- other: 1 run
- Key result
- Percentile:
- D90
- Mean:
- 1.07 µm
- Remarks on result:
- other: 1 run
Any other information on results incl. tables
Results in terms of size
Low diameter (µm) |
Cumulative mass finer (percent) |
Low diameter (µm) |
Cumulative mass finer (percent) |
Low diameter (µm) |
Cumulative mass finer (percent) |
| 98.00 | 103.1 | 50.00 | 100.7 | 10.00 | 100.4 |
| 97.00 | 103.1 | 25.00 | 99.0 | 5.000 | 98.7 |
| 75.00 | 102.2 | 20.00 | 98.6 | 2.000 | 96.2 |
Results in terms of mass percent
Low diameter (µm) |
Cumulative mass finer (percent) |
Low diameter (µm) |
Cumulative mass finer (percent) |
Low diameter (µm) |
Cumulative mass finer (percent) |
Low diameter (µm) |
Cumulative mass finer (percent) |
| 42.88 | 100.0 | 2.542 | 97.0 | 0.622 | 50.0 | 0.357 | 10.0 |
| 3.433 | 98.0 | 1.067 | 90.0 | 0.439 | 20.0 | 0.307 | 5.0 |
Applicant's summary and conclusion
- Conclusions:
- The d10, d50 and d90 of a representative sample of yttrium trifluoride were determined to be 0.36, 0.62 and 1.07 µm, respectively (mass-based distribution).
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