Registration Dossier
Registration Dossier
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EC number: 700-591-1 | CAS number: 82203-23-4
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2012-02-07 - 2012-05-08
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: non-GLP guideline study, but test procedure well documented
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 012
- Report date:
- 2012
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13320-1
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: In-house test method VTA(S)13X11001.01
- Deviations:
- no
- Principles of method if other than guideline:
- The particle size distribution is analysed by laser scattering analysis. Laser light interacts with the particles causing diffraction, refraction and absorption, thus producing a characteristic pattern of scattered light. If the particle size is significantly higher than the wavelength of the laser light predominantly diffraction patterns are produced. The information about the particle size is calculated from diffraction angles using the Fraunhofer theory. Using a red Laser Diode and a blue LED light source, the LA-950V2 is able to analyze particles in the range between 0.01 µm and 3,000 µm in diameter.
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- (1R)-1-[(4R,4aR,8aS)-2,6-bis(4-chlorophenyl)-hexahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol
- EC Number:
- 700-591-1
- Cas Number:
- 82203-23-4
- Molecular formula:
- C20H20Cl2O6
- IUPAC Name:
- (1R)-1-[(4R,4aR,8aS)-2,6-bis(4-chlorophenyl)-hexahydro-[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol
- Details on test material:
- - Name of test material (as cited in study report): (1R)-1-[(4R,4aR,8aS)-2,6-bis(4-chlorophenyl)tetrahydro[1,3]dioxino[5,4-d][1,3]dioxin-4-yl]ethane-1,2-diol
- Physical state: white solid
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 9.4 µm
- St. dev.:
- 0.12
- Percentile:
- D50
- Mean:
- 50.8 µm
- St. dev.:
- 0.71
- Percentile:
- D90
- Mean:
- 138.1 µm
- St. dev.:
- 2.26
Applicant's summary and conclusion
- Conclusions:
- D10 = 9.4 μm ± 0.12 µm
D50 = 50.8 μm ± 0.71 µm= mass median aerodynamic diameter (MMAD)
D90 = 138.1 μm ± 2.26 µm
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