Registration Dossier
Registration Dossier
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EC number: 257-098-5 | CAS number: 51274-00-1 This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 77492.
Nanomaterial porosity
Administrative data
- Endpoint:
- nanomaterial porosity
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- data from handbook or collection of data
Data source
Referenceopen allclose all
- Reference Type:
- publication
- Title:
- The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses: Structure, Properties, Reactions, Occurences and Uses
- Author:
- Schwertmann U, Cornell RM
- Year:
- 2 003
- Bibliographic source:
- Verlag: Wiley-VCH; Auflage: 2., vollst. überarb. u. erw. Aufl. (29. Juli 2003); Sprache: Englisch; ISBN-10: 3527302743; ISBN-13: 978-3527302741
- Reference Type:
- other company data
- Title:
- Unnamed
- Year:
- 2 015
Materials and methods
- Principles of method if other than guideline:
- No details presented
Test material
- Reference substance name:
- Iron hydroxide oxide yellow
- EC Number:
- 257-098-5
- EC Name:
- Iron hydroxide oxide yellow
- Cas Number:
- 51274-00-1
- Molecular formula:
- Fe(OH)O
- IUPAC Name:
- Iron hydroxide oxide
- Test material form:
- solid: nanoform
- Details on test material:
- Not specified
Constituent 1
Results and discussion
Porosity (fraction of void space in the material)
- Remarks on result:
- not measured/tested
- Remarks:
- Comparison between the results of the particle size measurements and the specific surface area according to BET shows no significant evidence for porosity.
Any other information on results incl. tables
N2 adsorption isotherms for samples with acicular crystals were type II and gave no indication of there being meso- or microporosity. No evidence of porosity was found for 15 synthetic goethites grown from both FeII and FeIII solutions (pH 6 -12).
Applicant's summary and conclusion
- Conclusions:
- Comparison between the results of the particle size measurements and the specific surface area according to BET shows no significant evidence for porosity.
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