Registration Dossier
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EC number: 201-484-8 | CAS number: 83-53-4
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:
- guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 018
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- other: not specified
Test material
- Reference substance name:
- 1,4-dibromonaphthalene
- EC Number:
- 201-484-8
- EC Name:
- 1,4-dibromonaphthalene
- Cas Number:
- 83-53-4
- Molecular formula:
- C10H6Br2
- IUPAC Name:
- 1,4-dibromonaphthalene
Constituent 1
Results and discussion
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- ca. 1.95 µm
- Distribution:
- ca. 4.4 %
- No.:
- #2
- Size:
- ca. 38.15 µm
- Distribution:
- ca. 60.4 %
- No.:
- #3
- Size:
- ca. 969.34 µm
- Distribution:
- ca. 35 %
Any other information on results incl. tables
Using abinocular magnifier, the substance was visually confirmedas being a powder, not a fiber.
Three measurements were performed under water medium.
The following results were obtained:
This particle size distribution has the following properties:
- Per cent of particles with diameter ≤ 2 μm : 2.56 %
- Per cent of particles with diameter ≥ 200 μm : 40.73 %
- Per cent of particles with 2 μm ≤ diameter ≤ 200 μm : 56.72 %
Applicant's summary and conclusion
- Conclusions:
- The particle size distribution of the test item 1,4 DIBROMONAPHTHALENE has been determined and the following results were obtained:
-2.56 % of particles own a diameter under 2 µm.
-56.72 % of particles own a diameter between 2 µm and 200 µm.
-40.73 % of particles own a diameter over 200 µm.
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