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Diss Factsheets
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EC number: 214-161-1 | CAS number: 1103-39-5
- 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 aspect ratio / shape
Administrative data
- Endpoint:
- nanomaterial aspect ratio/shape
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2022
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods with acceptable restrictions
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 022
- Report date:
- 2022
Materials and methods
- Principles of method if other than guideline:
- Nanoform compliance with REACH dossier ((EU) 2018/1881), French nano registration and Belgium nano registration (if mono-substance).
TEM particle size of primary particles and aggregates. Prepare sample in duplicate. Measure around 150 primary particles and several aggregates most representative of the TEM pictures. - GLP compliance:
- no
- Type of method:
- transmission electron microscopy
- Details on methods and data evaluation:
- The pigment was dispersed in ethanol, 140 measurements were taken.
Test material
- Reference substance name:
- Calcium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate]
- EC Number:
- 214-161-1
- EC Name:
- Calcium bis[2-[(2-hydroxynaphthyl)azo]naphthalenesulphonate]
- Cas Number:
- 1103-39-5
- Molecular formula:
- C20H14N2O4S.1/2Ca
- IUPAC Name:
- calcium bis{2-[(2-hydroxy-1-naphthyl)diazenyl]naphthalene-1-sulfonate}
- Reference substance name:
- Resin acids and Rosin acids, calcium salts
- EC Number:
- 232-694-8
- EC Name:
- Resin acids and Rosin acids, calcium salts
- Cas Number:
- 9007-13-0
- Molecular formula:
- not applicable
- IUPAC Name:
- Resin acids and Rosin acids, calcium salts
- Reference substance name:
- Reference substance 001
- Cas Number:
- 73612-32-5
- Molecular formula:
- C40H26CaN4O8S2
- Details on test material:
- Batch CHILJ709
Constituent 1
additive 1
additive 2
Data gathering
- Instruments:
- no data
Results and discussion
Shape descriptionopen allclose all
- Key result
- Shape:
- rod
- Percentage:
- 32 %
- Remarks on result:
- other: elongated shape category
- Key result
- Shape:
- spherical
- Percentage:
- 68 %
- Remarks on result:
- other: spheroidal shape category
- Remarks:
- (spherical, cubic,polyhedral)
Aspect ratioopen allclose all
- Key result
- x Dimension:
- 3.8
- y Dimension:
- 1
- Remarks on result:
- other: average aspect ratio of elongated shape category
- Key result
- x Dimension:
- 2.1
- y Dimension:
- 1
- Remarks on result:
- other: average aspect ratio of spheroidal shape category
Any other information on results incl. tables
The results represented the primary particles.
The particles with sizes below 100 nm are in the range of 98-100%. The median (D50) of the particle size is ca. 34 nm.
Applicant's summary and conclusion
- Conclusions:
- The primary particles of spheroidal shape category have an average aspect ratio of 2.1:1
The primary particles of elongated shape category have an average aspect ratio of 3.8:1
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
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