Registration Dossier
Registration Dossier
Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.
The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.
Use of this information is subject to copyright laws and may require the permission of the owner of the information, as described in the ECHA Legal Notice.
EC number: 700-102-1 | CAS number: 105112-76-3
Particle size distribution (Granulometry)
Administrative data
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- other: The study was conducted in compliance with the OECD Guidelines for Testing of Chemicals No. 110.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 008
- Report date:
- 2008
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)
- Remarks:
- The Department of Health of the Government of the United Kingdom
- Type of distribution:
- other: image analysis
Test material
- Reference substance name:
- 3-{[4'-(3-aminophenoxy)-[1,1'-biphenyl]-4-yl]oxy}aniline
- EC Number:
- 700-102-1
- Cas Number:
- 105112-76-3
- Molecular formula:
- C24H20N2O2
- IUPAC Name:
- 3-{[4'-(3-aminophenoxy)-[1,1'-biphenyl]-4-yl]oxy}aniline
- Details on test material:
- - Name of test material (as cited in study report): 3,3-(4,4-biphenylendioxy)dianiline
- Physical state: Off-white powder
- Analytical purity: > 99 %
- Lot/batch No.: 20070501
- Expiration date of the lot/batch: 30 April 2008
- Storage condition of test material: Room temperature
- Other: Date of receipt 28 August 2007
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:
- 60 - 105 µm
- Distribution:
- 15.6 %
- No.:
- #2
- Size:
- 30 - 60 µm
- Distribution:
- 63.4 %
- No.:
- #3
- Size:
- 10.4 - 30 µm
- Distribution:
- 20.3 %
- No.:
- #4
- Size:
- 0.5 - 10.4 µm
- Distribution:
- 0.6 %
Any other information on results incl. tables
Table 1: Particle size distribution according to sieve analysis.
% in range by weight |
|||
Particle size (micrometre) |
Test 1 |
Test 2 |
Mean |
> 400 |
0.9 |
0.7 |
0.8 |
400 – 125 |
2.8 |
1.3 |
2.1 |
125 – 75 |
14.2 |
12.8 |
13.5 |
75 – 30 |
77.3 |
80.5 |
78.9 |
30 – 10 |
5.5 |
5.3 |
5.4 |
10 |
0.0 |
0.0 |
0.0 |
The reported results were prepared from combined data for both magnifications from each field, at least fifty fields being taken from each slide. The mean projected area data were used to calculate spherical particle volumes in each range, which, when combined with the particle number distribution, gives a volume or mass distribution. The results are summarised in Table 2.
Table 2: Particle size distribution according to image analysis.
% mass |
|||||||
Particle size (micrometre) |
Test 1 |
Test 2 |
Test 3 |
Test 4 |
Test 5 |
Test 6 |
Mean |
105 – 130 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
0.0 |
60 – 105 |
9.7 |
12.1 |
17.5 |
19.0 |
16.6 |
19.1 |
15.6 |
30 – 60 |
60.8 |
61.7 |
62.0 |
65.5 |
63.8 |
66.7 |
63.4 |
10.4 – 30 |
28.6 |
25.5 |
19.9 |
15.0 |
19.1 |
13.8 |
20.3 |
0.5 – 10.4 |
0.9 |
0.7 |
0.7 |
0.6 |
0.5 |
0.5 |
0.6 |
Applicant's summary and conclusion
- Conclusions:
- The results of indicated that approximately 0.6 % w/w of 3,3-(4,4-biphenylenedioxy)dianiline was smaller than 10 micrometre.
- Executive summary:
The particle size distribution of 3,3-(4,4-biphenylenedioxy)dianiline was examined using sieve analysis according to OECD Guideline No. 110. As greater than 10 % by weight of the substance were found to pass a 75 -micron sieve, it was further examined by image analysis based on BS3406, Part 4, 1993.
The reported results were prepared from combined data for both magifications from each field, at least fifty fields being taken from each slide. The mean projected area data were used to calculate spherical particle volumes in each range, which, when combined with the particle number distribution, gives a volume or mass distribution. The observed particles were irregular and crystalline.
The results indicate that approximately 0.6 % w/w of 3,3-(4,4-biphenylenedioxy)dianiline was smaller than 10 micrometre.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
