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Diss Factsheets
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EC number: 232-137-9 | CAS number: 7788-97-8
- 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
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- study well documented, meets generally accepted scientific principles, acceptable for assessment
- Justification for type of information:
- Performed by manufacturer
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
- Principles of method if other than guideline:
- Sieves of 250 and 60 µm
- GLP compliance:
- no
- Type of method:
- sieving
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- Batch number of test material: B-08-3321
- Remarks on result:
- not determinable
- Remarks:
- Sample was observed to be hygroscopic
- Percentile:
- other: 37% w/w
- Mean:
- > 250 µm
- Remarks on result:
- other: Method limitations to determine standard deviations
- Percentile:
- other: 10% w/w
- Mean:
- > 63 - < 250 µm
- Remarks on result:
- other: Method limitations to determine standard deviations
- Percentile:
- other: 52% w/w
- Mean:
- < 63 µm
- Remarks on result:
- other: Method limitations to determine standard deviations
- Remarks on result:
- not determinable because of methodological limitations
- Conclusions:
- The substance was observed to be very hygroscopic. It therefore did not retain a crystalline structure, so, in order to determine the size of the particles, the substance was further dried at 105 °C for 24 hours. The amount of substance used for this particular test was = 60.59 g.
- Retained by 250 µm = 37.37%
- Retained by 63 µm = 10.07%
- < 63 µm = 52.56% - Executive summary:
It was not possible to determine a mass median
Reference
The substance was observed to be very hygroscopic. It therefore did not retain a crystalline structure, so, in order to determine the size of the particles, the substance was further dried at 105 °C for 24 hours. The amount of substance used for this particular test was = 60.59 g.
Dry material will not exist outside laboratory conditions and the substance has low dust content.
- Retained by 250 µm = 37.37%
- Retained by 63 µm = 10.07%
- < 63 µm = 52.56%
Description of key information
The substance was observed to be very hygroscopic. It therefore did not retain a crystalline structure, so, in order to determine the size of the particles, the substance was further dried at 105 °C for 24 hours. The amount of substance used for this particular test was = 60.59 g.
- Retained by 250 µm = 37.37%
- Retained by 63 µm = 10.07%
- < 63 µm = 52.56%
Additional information
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.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.