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Diss Factsheets
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EC number: 240-941-6 | CAS number: 16898-52-5
- 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
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
- Study period:
- August 2017
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- comparable to guideline study with acceptable restrictions
- Justification for type of information:
- Similar to a guideline method conducted within the spirit of GLP, but without GLP certification
- Qualifier:
- equivalent or similar to guideline
- Guideline:
- ISO 13320 (Particle size analysis - Laser diffraction methods)
- GLP compliance:
- no
- Type of method:
- Laser scattering/diffraction
- Type of particle tested:
- primary particle
- Type of distribution:
- mass based distribution
- Specific details on test material used for the study:
- Vertellus 1,3-Di- 4-Piperidylpropane (DiPIP) flakes material, Lot #167742.
- Key result
- Percentile:
- D10
- Mean:
- 12.313 µm
- Remarks on result:
- other: fraction which passed through a 600 micron screen
- Remarks:
- Actual fraction: 0.04%
- Key result
- Percentile:
- D50
- Mean:
- 61.503 µm
- Remarks on result:
- other: fraction which passed through a 600 micron screen
- Key result
- Percentile:
- D90
- Mean:
- 141.346 µm
- Remarks on result:
- other: fraction which passed through a 600 micron screen
- Remarks:
- Actual fraction: 0.43%
- Conclusions:
- Gramulometry was assessed on the test material using a combination of seiving and LASER diffraction. Less than 1% of the material passed through a 600 micron sieve. Data from LASER diffraction showed that 0.04% of the test material is less than 10 microns (respirable), and 0.43% is less than 100 microns (inhalable). This documents that the commercial material has an extremely low risk of being inhaled by workers.
Reference
Surface Weighted Mean: 18.170 um
Vol. Weighted Mean: 70.120 um
DT10: 12.313
DT50: 61.503
DT90: 141.346
The % volume of powder in the 0.56 g sieved material was found as follows:
<10µm size = 7.95%
<100µm size = 77.1%
When the above % volume is further calculated against the initial sample weight of 100.08 g DIPIP flaked material, the PSD result is calculated to be as follows:
<10µm size = 0.04%
<100µm size = 0.43%
Description of key information
Percentage of flaked material < 600 microns: 0.56;
Percentage of flaked material < 100 microns: 0.43
Percentage of flaked material < 10 microns: 0.04
Additional information
Using seiving and LASER diffraction, less than 1% of the commercial material passed through a 600 micron sieve. Approximately 0.04% is less than 10 microns (respirable), and 0.43% is less than 100 microns (inhalable), documenting that workers have an extremely low likelihood of inhaling particles of the commercial material into the respiratory trac
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