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EC number: 413-810-8 | CAS number: 65181-78-4 OP-262; ST 16-1.1; ST 16-1.2; SUBSTANCE S123104
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009/11/20 - 2009/12/09
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: Study according to OECD GL under GLP, well documented study.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 009
- Report date:
- 2010
Materials and methods
Test guidelineopen allclose all
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- Qualifier:
- according to guideline
- Guideline:
- other: ISO 13317-2
- GLP compliance:
- yes (incl. QA statement)
- Type of distribution:
- other: sedimentation; Fixed Pipette Method
Test material
- Reference substance name:
- N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-diphenyl)-4,4'-diamine
- EC Number:
- 413-810-8
- EC Name:
- N,N'-diphenyl-N,N'-bis(3-methylphenyl)-(1,1'-diphenyl)-4,4'-diamine
- Cas Number:
- 65181-78-4
- Molecular formula:
- C38H32N2
- IUPAC Name:
- N4,N4'-bis(3-methylphenyl)-N4,N4'-diphenyl-[1,1'-biphenyl]-4,4'-diamine
- Details on test material:
- - Name of test material (as cited in study report): TPD (ST 16/1.1)
- Physical state: white powder
- Analytical purity: 99.9% (HPLC)
- Lot/batch No.: 16/1.1-07058.09
- Production date: 1.2.2009
- Expiry date: after 24 month
Constituent 1
Results and discussion
Particle size
- Percentile:
- D50
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- ca. 182.45 µm
- Distribution:
- >= 68.72 - <= 70.52 %
- No.:
- #2
- Size:
- ca. 126.9 µm
- Distribution:
- >= 60.89 - <= 61.27 %
- No.:
- #3
- Size:
- ca. 88.22 µm
- Distribution:
- >= 50.28 - <= 54.34 %
- No.:
- #4
- Size:
- ca. 61.29 µm
- Distribution:
- >= 40.46 - <= 42.46 %
- No.:
- #5
- Size:
- ca. 42.55 µm
- Distribution:
- >= 34.64 - <= 38.73 %
- No.:
- #6
- Size:
- ca. 29.52 µm
- Distribution:
- >= 28.49 - <= 32.37 %
- No.:
- #7
- Size:
- ca. 20.47 µm
- Distribution:
- >= 21.79 - <= 28.32 %
- No.:
- #8
- Size:
- ca. 14.03 µm
- Distribution:
- >= 12.92 - <= 21.39 %
- No.:
- #9
- Size:
- ca. 10.13 µm
- Distribution:
- >= 4.47 - <= 10.98 %
- No.:
- #10
- Size:
- ca. 9.15 µm
- Distribution:
- >= 1.68 - <= 5.78 %
Any other information on results incl. tables
Findings and Results:
The particle size distribution of TPD (ST 16/1.1) was determined by sedimentation following ISO 13317-2 - Fixed Pipette Method
The determination was performed in duplicate, using saturated solution in H20 as suspending medium.
Very few particles smaller than 10 µm were determined.
For the test item TPD (ST 16/1.1), the following particle size distribution was found:
Stokes-diameter in µm |
Mass under particle size |
Mass under particle size |
Mass under particle size |
Difference |
182.45 |
70.52% |
68.72% |
69.62% |
1.81% |
126.90 |
61.27% |
60.89% |
61.08% |
0.38% |
88.22 |
54.34% |
50.28% |
52.31% |
4.06% |
61.29 |
40.46% |
42.46% |
41.46% |
2.00% |
42.55 |
38.73% |
34.64% |
36.68% |
4.09% |
29.52 |
32.37% |
28.49% |
30.43% |
3.88% |
20.47 |
28.32% |
21.79% |
25.06% |
6.54% |
14.03 |
21.39% |
12.29% |
16.84% |
9.10% |
10.13 |
10.98% |
4.47% |
7.73% |
6,51% |
9.15 |
5.78% |
1.68% |
3.73% |
4.10% |
Density:
Density of the test item was determined by the pycnometer method: 1.1678 g/cm3.
Applicant's summary and conclusion
- Conclusions:
- Only very few particles smaller than 10 µm were determined.
- Executive summary:
Particle size distribution was determined for TPD according to OECD GL 110 / ISO 13317-2.
69.6/7.7 % (mean) of the mass were under 182.45/ 10.13 µm stokes-diameter.
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