Registration Dossier
Registration Dossier
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EC number: 439-590-3 | CAS number: 12158-75-7
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Adequacy of study:
- supporting study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- DIN 55992-1 (Determination of a parameter for the dust formation of pigments and extenders - Part 1: Rotation method)
- Deviations:
- not specified
- GLP compliance:
- no
- Type of method:
- rotating drum method
- Type of distribution:
- volumetric distribution
- Remarks on result:
- not measured/tested
- Remarks on result:
- not measured/tested
- Conclusions:
- Dustiness values
Total dustiness [mg/g]: 11.1
Inhalable fraction [mg/g]: 3.855
Thoraic fraction [mg/g]: 0.74
Respirable fraction [mg/g]: 0.3
The inhalable fraction was only determined up to an airodynamic diameter of 100 µm. - Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2001
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Qualifier:
- no guideline followed
- Principles of method if other than guideline:
- Laser-Granulometer Cilas 1180 Naß
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
- Percentile:
- other: D16
- Mean:
- 0.59 µm
- Remarks on result:
- other: no St. dev. was determined
- Percentile:
- D50
- Mean:
- 1.02 µm
- Remarks on result:
- other: no St. dev. was determined
- Percentile:
- other: D84
- Mean:
- 1.68 µm
- Remarks on result:
- other: no St. dev. was determined
- No.:
- #1
- Size:
- 0.04 µm
- Distribution:
- 0.1 %
- No.:
- #2
- Size:
- 0.1 µm
- Distribution:
- 0.34 %
- No.:
- #3
- Size:
- 0.3 µm
- Distribution:
- 4.26 %
- No.:
- #4
- Size:
- 0.5 µm
- Distribution:
- 11.22 %
- No.:
- #5
- Size:
- 0.7 µm
- Distribution:
- 23.44 %
- No.:
- #6
- Size:
- 1 µm
- Distribution:
- 48.19 %
- No.:
- #7
- Size:
- 2 µm
- Distribution:
- 91.38 %
- No.:
- #8
- Size:
- 4 µm
- Distribution:
- 100 %
- Conclusions:
- The particle size is ≥ 0.04 µm and ≤ 4 µm. The median particle size D50 of the substance is 1.02 µm.
Referenceopen allclose all
Dustiness values
| Test 1 | Test 2 | Mean | |
| Total dustiness [mg/g] | 13.38 | 8.82 | 11.1 |
| Inhalable fraction [mg/g] | 5.12 | 2.59 | 3.855 |
| Thoraic fraction [mg/g] | 1.26 | 0.22 | 0.74 |
| Respirable fraction [mg/g] | 0.51 | 0.09 | 0.3 |
The inhalable fraction was only determined up to an airodynamic diameter of 100 µm.
Description of key information
The particle size distribution is ≥ 0.04 µm and ≤ 4 µm. The median particle size D50 of the substance is 1.02 µm.
Dustiness values:
Total dustiness [mg/g]: 11.1
Inhalable fraction [mg/g]: 3.855
Thoraic fraction [mg/g]: 0.74
Respirable fraction [mg/g]: 0.3
The inhalable fraction was only determined up to an airodynamic diameter of 100 µm.
Additional information
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