Registration Dossier
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EC number: 209-967-5 | CAS number: 599-61-1
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
- Study period:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- see the attached document
- GLP compliance:
- not specified
- Type of method:
- other: not specified
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Conclusions:
- The particule size distribution of 4,4 -DDS is as followed : D(v,0.1) = 22.46µm, D(v,0.5) = 126.24 µm, and D(v, 0.9) = 224.19µm.
- Executive summary:
The diameter of 4,4 -DDS particules is from 0.31 µm to 301.68 µm with the following particule size distribution : D(v,0.1) = 22.46µm, D(v,0.5) = 126.24 µm, D(v, 0.9) = 224.19µm.
The mean diameters are D[4, 3] = 126.85 µm and D[3, 2] = 33.57 µm.
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- read-across from supporting substance (structural analogue or surrogate)
- Adequacy of study:
- key study
- Study period:
- 2012
- Reliability:
- 1 (reliable without restriction)
- Justification for type of information:
- See attachment in section 13.
- Reason / purpose for cross-reference:
- read-across source
- Qualifier:
- no guideline available
- Principles of method if other than guideline:
- see the attached document
- GLP compliance:
- not specified
- Type of method:
- other: not specified
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Conclusions:
- The particle size distribution of 4,4 -DDS is as followed : D(v,0.1) = 22.46µm, D(v,0.5) = 126.24 µm, and D(v, 0.9) = 224.19µm.
- Executive summary:
The diameter of 4,4 -DDS particles is from 0.31 µm to 301.68 µm with the following particle size distribution : D(v,0.1) = 22.46µm, D(v,0.5) = 126.24 µm, D(v, 0.9) = 224.19µm.
The mean diameters are D[4, 3] = 126.85 µm and D[3, 2] = 33.57 µm.
Referenceopen allclose all
Distribution type : Volume
Concentration : 0.0932% Vol
Density : 1.000 g/cm3
Specific S.A. : 0.1787 m2/g
Mean Diameters:
D[4, 3] = 126.85 µm
D[3, 2] = 33.57 µm
D(v, 0.1) = 22.49 µm
D(v, 0.5) = 126.24 µm
D(v, 0.9) = 224.19 µm
Span : 1.598E+00
Uniformity ; 4.71E-01
Distribution type : Volume
Concentration : 0.0932% Vol
Density : 1.000 g/cm3
Specific S.A. : 0.1787 m2/g
Mean Diameters:
D[4, 3] = 126.85 µm
D[3, 2] = 33.57 µm
D(v, 0.1) = 22.49 µm
D(v, 0.5) = 126.24 µm
D(v, 0.9) = 224.19 µm
Span : 1.598E+00
Uniformity ; 4.71E-01
Description of key information
As process in formulation of the 3,3'-DDS are similar to the process used in the formulation of Dapsone, the granulometry of 3,3'-DDS is assumed to be the same as Dapsone.
Therefore, the particle size distribution of 3,3'-DDS is : D(v,0.1) = 22.46µm, D(v,0.5) = 126.24 µm, and D(v, 0.9) = 224.19µm.
Additional information
The diameter of 3,3'-DDS particles is from 0.31 µm to 301.68 µm with the following particle size distribution : D(v,0.1) = 22.46µm, D(v,0.5) = 126.24 µm, D(v, 0.9) = 224.19µm.
The mean diameters are D[4, 3] = 126.85 µm and D[3, 2] = 33.57 µm.
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