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Physical & Chemical properties

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:
2009
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

Constituent 1
Chemical structure
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

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
Exp. 1

Mass under particle size
Exp. 2

Mass under particle size
Mean

 

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.