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EC number: 206-643-5 | CAS number: 361-09-1
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2018
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC MT 187
- GLP compliance:
- yes
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- Sodium cholate
- EC Number:
- 206-643-5
- EC Name:
- Sodium cholate
- Cas Number:
- 361-09-1
- Molecular formula:
- C24H40O5.Na
- IUPAC Name:
- sodium cholate
- Test material form:
- solid: crystalline
Constituent 1
- Specific details on test material used for the study:
- Batch number: 2017010012
Results and discussion
- Mass median aerodynamic diameter:
- 19.4 µm
Particle sizeopen allclose all
- Key result
- Percentile:
- D10
- Mean:
- 3.6 µm
- St. dev.:
- 0.024
- Key result
- Percentile:
- D50
- Mean:
- 19.4 µm
- St. dev.:
- 0.582
- Key result
- Percentile:
- D90
- Mean:
- 1 200 µm
- St. dev.:
- 19.8
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- < 45 µm
- Distribution:
- 60.24 %
- No.:
- #2
- Size:
- > 75 µm
- Distribution:
- 36.34 %
Any other information on results incl. tables
Results
The interpolated results are expressed as percent of the total results under that size.
This value is known as percentile.
The results show the percentile sizes for 10%[Dv 10 ( µm)], 50%[Dv 50 ( µm)], 90% [Dv 90 ( µm)], the percentile volume under 45 µm and the percentile volume above 75 µm.
The 50% volume percentile is also known as the media of the volume distribution (in bold).
Table6 Particle size distribution by laser diffraction
Test No. |
Dv 10 ( µ m) |
Dv 50 ( µ m) |
Dv 90 ( µ m) |
% Volume under 45 µm |
% Volume above 75 µm |
1 |
3.59 |
19.3 |
1200 |
60.47 |
36.10 |
2 |
3.63 |
20.1 |
1220 |
59.52 |
37.10 |
3 |
3.58 |
19.0 |
1180 |
60.73 |
35.83 |
Average |
3.60 |
19.4 |
1200 |
60.24 |
36.34 |
Applicant's summary and conclusion
- Conclusions:
- Particle size distribution of the substance is the following: D10 = 3.60 μm; D50 = 19.4 μm; D90 = 1200 μm; Volume under 45 μm = 60.24% , volume above 75 μm = 36.34%
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