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EC number: 230-086-7 | CAS number: 6940-53-0
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2010-02-18 to 2010-02-18
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Recent, well documented GLP and guideline study.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
Test material
- Reference substance name:
- 1-chloro-2,5-dimethoxy-4-nitrobenzene
- EC Number:
- 230-086-7
- EC Name:
- 1-chloro-2,5-dimethoxy-4-nitrobenzene
- Cas Number:
- 6940-53-0
- Molecular formula:
- C8H8ClNO4
- IUPAC Name:
- 1-chloro-2,5-dimethoxy-4-nitrobenzene
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- <= 8.61 µm
- St. dev.:
- 0.026
- Remarks on result:
- other: RSD = 0.31 %
- Percentile:
- D50
- Mean:
- <= 76.9 µm
- St. dev.:
- 1.36
- Remarks on result:
- other: RSD = 1.77 %
- Percentile:
- D90
- Mean:
- <= 195 µm
- St. dev.:
- 4.2
- Remarks on result:
- other: RSD = 2.14 %
Any other information on results incl. tables
Dry dispersing system RODOS: Measurement starting with approximately 12 - 13 g powder for each test at a pressure of 1.5 bar. The measuring range of the optical system was set to lense R5 (0.5/4.5...875 µm).
Summary table
Run |
X10 [µm] |
X50 [µm] |
X90 [µm] |
1 |
8.63 |
77.76 |
191.93 |
2 |
8.62 |
77.67 |
193.96 |
3 |
8.58 |
75.36 |
199.97 |
Average |
8.61 |
76.93 |
195.29 |
Standard Deviation |
0.026 |
1.360 |
4.181 |
RSD [%] |
0.31 |
1.77 |
2.14 |
The
average particle size and standard deviation of the test item
1-Chloro-2,5-dimethoxy-4-nitrobenzene
was
X10:
≤ 8.61 ± 0.026 pm
X50:
≤ 76.9 ± 1.36 pm
X90:
≤ 195 ± 4.2 pm
Applicant's summary and conclusion
- Conclusions:
- The Particle Size Distribution of the test item 1-Chloro-2,5-dimethoxy-4-nitrobenzene
was measured with Sympatec HELOS laser diffraction with dry dispersing system
RODOS.
The average and standard deviation of 3 determinations was:
X10: ≤ 8.61 ± 0.026 3m (RSD = 0.31 %)
X50: ≤ 76.9 ± 1.36 3m (RSD = 1.77 %)
X90: ≤ 195 ± 4.2 3m (RSD = 2.14 %) - Executive summary:
The Particle Size Distribution of the test item 1-Chloro-2,5-dimethoxy-4-nitrobenzene
was measured with Sympatec HELOS laser diffraction with dry dispersing system
RODOS.
The average and standard deviation of 3 determinations was:
X10: ≤ 8.61 ± 0.026 µm (RSD = 0.31 %)
X50: ≤ 76.9 ± 1.36 µm (RSD = 1.77 %)
X90: ≤ 195 ± 4.2 µm (RSD = 2.14 %)
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