Registration Dossier
Registration Dossier
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EC number: 215-168-2 | CAS number: 1309-37-1
Nanomaterial agglomeration / aggregation
Administrative data
- Endpoint:
- nanomaterial agglomeration/aggregation
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 015
- Report date:
- 2015
Materials and methods
- Type of method:
- scanning electron microscopy
Test material
- Reference substance name:
- Diiron trioxide
- EC Number:
- 215-168-2
- EC Name:
- Diiron trioxide
- Cas Number:
- 1309-37-1
- Molecular formula:
- Fe2O3
- IUPAC Name:
- diiron(3+) trioxidandiide
- Test material form:
- solid: nanoform, no surface treatment
Constituent 1
Data gathering
- Instruments:
- SEM/EDX investigation was performed with a Quanta FEI 200 FEG with an e-beam acceleration voltage of 15kV.
Results and discussion
Agglomerate / aggregate sizeopen allclose all
- Percentile:
- D10
- Mean:
- 0.129 μm
- Percentile:
- D50
- Mean:
- 0.175 μm
- Percentile:
- D90
- Mean:
- 0.248 μm
Any other information on results incl. tables
The SEM image showed that the dry Cerac-Pigment powder that was directly taken from the sample containment forms agglomerates up to a few 100 micrometers.
Applicant's summary and conclusion
- Conclusions:
- The SEM image showed that the dry Cerac-Pigment powder that was directly taken from the sample containment forms agglomerates up to a few 100 micrometers. The SEM examination suggests that the sample consists of primary particles in the nano-size region, down to -10nm. The primary particles formed agglomerates in the size region of approximately 5-40 micrometers .
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