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Diss Factsheets
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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.
- Life Cycle description
- Uses advised against
- Endpoint summary
- Appearance / physical state / colour
- Melting point / freezing point
- Boiling point
- Density
- Particle size distribution (Granulometry)
- Vapour pressure
- Partition coefficient
- Water solubility
- Solubility in organic solvents / fat solubility
- Surface tension
- Flash point
- Auto flammability
- Flammability
- Explosiveness
- Oxidising properties
- Oxidation reduction potential
- Stability in organic solvents and identity of relevant degradation products
- Storage stability and reactivity towards container material
- Stability: thermal, sunlight, metals
- pH
- Dissociation constant
- Viscosity
- Additional physico-chemical information
- Additional physico-chemical properties of nanomaterials
- Nanomaterial agglomeration / aggregation
- Nanomaterial crystalline phase
- Nanomaterial crystallite and grain size
- Nanomaterial aspect ratio / shape
- Nanomaterial specific surface area
- Nanomaterial Zeta potential
- Nanomaterial surface chemistry
- Nanomaterial dustiness
- Nanomaterial porosity
- Nanomaterial pour density
- Nanomaterial photocatalytic activity
- Nanomaterial radical formation potential
- Nanomaterial catalytic activity
- Endpoint summary
- Stability
- Biodegradation
- Bioaccumulation
- Transport and distribution
- Environmental data
- Additional information on environmental fate and behaviour
- Ecotoxicological Summary
- Aquatic toxicity
- Endpoint summary
- Short-term toxicity to fish
- Long-term toxicity to fish
- Short-term toxicity to aquatic invertebrates
- Long-term toxicity to aquatic invertebrates
- Toxicity to aquatic algae and cyanobacteria
- Toxicity to aquatic plants other than algae
- Toxicity to microorganisms
- Endocrine disrupter testing in aquatic vertebrates – in vivo
- Toxicity to other aquatic organisms
- Sediment toxicity
- Terrestrial toxicity
- Biological effects monitoring
- Biotransformation and kinetics
- Additional ecotoxological information
- Toxicological Summary
- Toxicokinetics, metabolism and distribution
- Acute Toxicity
- Irritation / corrosion
- Sensitisation
- Repeated dose toxicity
- Genetic toxicity
- Carcinogenicity
- Toxicity to reproduction
- Specific investigations
- Exposure related observations in humans
- Toxic effects on livestock and pets
- Additional toxicological data
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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