Registration Dossier
Registration Dossier
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EC number: 235-049-9 | CAS number: 12062-81-6
Nanomaterial aspect ratio / shape
Administrative data
- Endpoint:
- nanomaterial aspect ratio/shape
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 014
- Report date:
- 2014
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions) - Method B: Fibre Length and Diameter Distributions
- Principles of method if other than guideline:
- The particle size distribution was determined by Image Analysis in accordance with the Council Regulation (EC JRC73260, nanomaterial). The test method is in all essential part identical with the OECD Guideline, Test no. 110, method B.
The pigment was dispersed in about 10 ml of distilled water by means of ultrasound for 1min with the power of 100W. Thus, agglomerates are destroyed forming single or aggregated particles. The particles are placed on a TEM grid and tested by high resolution scanning transmission electron microscopy (HR STEM Company: FEI, QS- No.: 02464; SOP 00013 Vers.2; Reference Material: UER3 922.00).
Test material
- Reference substance name:
- Iron manganese trioxide
- EC Number:
- 235-049-9
- EC Name:
- Iron manganese trioxide
- Cas Number:
- 12062-81-6
- Molecular formula:
- FeMnO3
- IUPAC Name:
- λ²-iron(2+) oxomanganesebis(olate)
- Test material form:
- solid: nanoform
Constituent 1
Results and discussion
Aspect ratio
- Remarks on result:
- other: Median aspect ratio 1.5 +/-0.5
Applicant's summary and conclusion
- Conclusions:
- Median aspect ratio 1.5 +/-0.5
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