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Diss Factsheets
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EC number: 701-307-9 | CAS number: -
- 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
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- 2009-11-17
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- test procedure in accordance with national standard methods
- Remarks:
- In-house data of producer. Study performed according to internal quality control SOP.
Data source
Reference
- Reference Type:
- study report
- Title:
- Unnamed
- Year:
- 2 010
- Report date:
- 2010
Materials and methods
Test guideline
- Qualifier:
- according to guideline
- Guideline:
- other: SOP : SN107-83 Laser Diffraction Particle Size Measurement – Malvern Mastersizer S
- Deviations:
- no
- Principles of method if other than guideline:
- The Malvern Mastersizer S is a laser diffraction particle size analyser and uses Mie theory to convert a diffraction pattern into the size distribution of a measured material. During the laser diffraction measurement, particles are passed through a focused laser beam. These particles scatter light at an angle that is inversely proportional to their size. The angular intensity of the scattered light is then measured by a series of photosensitive detectors. The number and positioning of these detectors in the Mastersizer 2000 has been optimized to achieve maximum resolution across a broad range of sizes. The map of scattering intensity versus angle is the primary source of information used to calculate the particle size. The scattering of particles is accurately predicted by the Mie scattering model. This model is rigorously applied within the Mastersizer 2000 software, allowing accurate sizing across the widest possible dynamic range
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of distribution:
- other: Laser diffraction particle size analysis
Test material
- Reference substance name:
- boron nitride (cubic)
- EC Number:
- 701-307-9
- Cas Number:
- 10043-11-5
- Molecular formula:
- BN
- IUPAC Name:
- boron nitride (cubic)
- Test material form:
- solid: crystalline
Constituent 1
Results and discussion
Particle sizeopen allclose all
- Percentile:
- D10
- Mean:
- 0.53 µm
- St. dev.:
- 0
- Remarks on result:
- other:
- Remarks:
- The volume mean diameter of the particles has been determined.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Percentile:
- D50
- Mean:
- 1.1 µm
- St. dev.:
- 0
- Remarks on result:
- other:
- Remarks:
- The volume mean diameter of the particles has been determined.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Percentile:
- D90
- Mean:
- 2.19 µm
- St. dev.:
- 0
- Remarks on result:
- other:
- Remarks:
- The volume mean diameter of the particles has been determined.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
- Percentile:
- D99
- Mean:
- 3.24 µm
- St. dev.:
- 0
- Remarks on result:
- other:
- Remarks:
- The volume mean diameter of the particles has been determined.(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)
Particle size distribution at different passagesopen allclose all
- No.:
- #1
- Size:
- <= 0.239 µm
- Distribution:
- <= 0 %
- No.:
- #2
- Size:
- > 4.48 µm
- Distribution:
- <= 0 %
Applicant's summary and conclusion
- Conclusions:
- • The one percent cut-off point, one percent of the particle size distribution is below 0.35 microns. • The ten percent cut-off point, ten percent of the particle size distribution is below 0.53 microns.• The volume median diameter, fifty percent of the particle size distribution is above 1.10 microns and fifty percent is below 1.10 microns.• The ninety percent cut-off point, ninety percent of the particle size distribution is below 2.19 microns.• The ninety nine percent cut-off point, ninety nine percent of the particle size distribution is below 3.24 microns.• The surface area mean diameter of the particles is 1.25 microns.• The volume mean diameter of the particles is 0.95 microns.
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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