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Diss Factsheets
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EC number: 230-711-3 | CAS number: 7287-19-6
- 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:
- test procedure in accordance with national standard methods with acceptable restrictions
- Qualifier:
- according to guideline
- Guideline:
- other: CIPAC method MT 187
- Deviations:
- no
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- volumetric distribution
- Percentile:
- D50
- Mean:
- 24.8 µm
- St. dev.:
- 0.1
- Conclusions:
- The mean particle size distribution of the substance was determined to be 24.8 µm.
- Executive summary:
The volumetric particle size distribution of the substance was determined with a laser diffraction method to CIPAC method MT 187, using a water dispersion unit. The test substance was added to the water dispersion unit of the instrument and the diffraction pattern of a laser beam passed through the dispersion measured at ambient temperature. The laser diffraction study can be conducted in water for very insoluble substances with solubility of less than 10^-6 g/L (according to OECD test guideline). The test substance has a solubility of 0.033 g/L at 25 °C, which is above the required solubility threshold. To minimise the impact of dissolution, the particle size was measured immediately after the test substance was added to the water. The relative standard deviations of the particle size distribution for the Dv[10], Dv[50] and Dv[90] values were calculated to be 1.14, 0.40 and 4.60% indicating that the impact of water solubility on the particle size distribution determination was less than 5%. The results obtained from three measurements thus were considered as reliable:
Dv[10] = 6.79 µm
Dv[50] = 24.8 µm
Dv[90] = 164 µm
Reference
Individual results of the three measurements
Measurement | Dv[10] | Dv[50] | Dv[90] |
Run 1 | 6.88 | 24.7 | 157 |
Run 2 | 6.77 | 24.8 | 163 |
Run 3 | 6.73 | 24.9 | 172 |
Average | 6.79 | 24.8 | 164 |
Stdev (%) | 1.14 | 0.40 | 4.60 |
Description of key information
The particle size distribution of a representative sample of substance was determined by a laser diffraction method. The median particle size of the distribution was determined to be 24.8 µm, with a relative standard deviation of 0.40%.
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.