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EC number: 238-677-1 | CAS number: 14634-93-6
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:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
- Deviations:
- no
- GLP compliance:
- yes
- Type of method:
- sieving
- Remarks:
- Scanning electron microscopy
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Specific details on test material used for the study:
- Batch number: CN61204501
Date of receipt: 2017-03-02
Expiry date: 2018-07-24 - Mass median aerodynamic diameter:
- 5.41 µm
- Size:
- < 4 µm
- Distribution:
- 3.04 %
- Remarks on result:
- other: Spherical Volume
- Size:
- < 4 µm
- Distribution:
- 3.23 %
- Remarks on result:
- other: Cubical Volume
- Size:
- >= 4 - <= 10 µm
- Distribution:
- 41.72 %
- Remarks on result:
- other: Spherical Volume
- Size:
- >= 4 - <= 10 µm
- Distribution:
- 42.72 %
- Remarks on result:
- other: Cubical Volume
- Size:
- >= 10 - <= 100 µm
- Distribution:
- 55.24 %
- Remarks on result:
- other: Spherical Volume
- Size:
- >= 10 - <= 100 µm
- Distribution:
- 54.05 %
- Remarks on result:
- other: Cubical Volume
- Size:
- > 100 µm
- Distribution:
- 0 %
- Remarks on result:
- other: Spherical Volume
- Size:
- > 100 µm
- Distribution:
- 0 %
- Remarks on result:
- other: Cubical Volume
- Conclusions:
- The particle size distribution of Vulkacit P extra N was determined by scanning electron microscopy after the samples was fractionated by a 100 μm sieve. The MMAD (Mass Median Aerodynamic Diameter < 100 µm) has a value of 5.41 µm as spherical particles.
- Executive summary:
The particle size distribution of Vulkacit P extra N was determined by scanning electron microscopy after the samples was fractionated by a 100 μm sieve.
Sieve Fraction:
weighted sample: 0.8059 g
weight fraction <100 μm: 0.5889 g
mass fraction <100 μm: 73.07 %
Mass Fraction:
Sieve Fraction nominal < 100μm
Particle Size Spherical Volume Cubical Volume <4 μm (respirable) 3.04 % 3.23 % 4-10 μm (thoracic) 41.72 % 42.72 % 10-100 μm (inhalable) 55.24 % 54.05 % >100 μm 0.00 % 0.00 % Median (diameter μm) 5.41 μm 5.22 μm The MMAD (Mass Median Aerodynamic Diameter < 100 µm) has a value of 5.41 µm as spherical particles.
Accounting based on the total sample weight
Particle Size [μm] Spherical Volume [%] Mass Fraction >100 26.93 Sieve Fraction >100 0.00 Total (>100μm) 26.93 Sieve Fraction 10-100 (inhalable) 40.37 Sieve Fraction 4-10 (thoracic) 30.49 Sieve Fraction <4 (respirable) 2.22
Reference
Conclusion
| Accounting based on the total sample weight | ||
| Particle Size [μm] | Spherical Volume [%] | |
| Mass Fraction | >100 | 26.93 |
| Sieve Fraction | >100 | 0.00 |
| Total (>100μm) | 26.93 | |
| Sieve Fraction | 10 -100 (inhalable) | 40.37 |
| Sieve Fraction | 4-10 (thoracic) | 30.49 |
| Sieve Fraction | <4 (respirable) | 2.22 |
The MMAD (Mass Median Aerodynamic Diameter < 100 µm) has a value of 5.41 µm as spherical particles.
Description of key information
The particle size distribution of Vulkacit P extra N was determined by scanning electron microscopy after the samples was fractionated by a 100 μm sieve.
Sieve Fraction:
weighted sample: 0.8059 g
weight fraction <100 μm: 0.5889 g
mass fraction <100 μm: 73.07 %
Mass Fraction:
Sieve Fraction nominal < 100μm
| Particle Size | Spherical Volume | Cubical Volume |
| <4 μm (respirable) | 3.04 % | 3.23 % |
| 4-10 μm (thoracic) | 41.72 % | 42.72 % |
| 10-100 μm (inhalable) | 55.24 % | 54.05 % |
| >100 μm | 0.00 % | 0.00 % |
| Median (diameter μm) | 5.41 μm | 5.22 μm |
The MMAD (Mass Median Aerodynamic Diameter < 100 µm) has a value of 5.41 µm as spherical particles.
Accounting based on the total sample weight |
||
| Particle Size [μm] | Spherical Volume [%] | |
| Mass Fraction | >100 | 26.93 |
| Sieve Fraction | >100 | 0.00 |
| Total (>100μm) | 26.93 | |
| Sieve Fraction | 10-100 (inhalable) | 40.37 |
| Sieve Fraction | 4-10 (thoracic) | 30.49 |
| Sieve Fraction | <4 (respirable) | 2.22 |
Additional information
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